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| = Application guide: Water stress test for extreme rainfall = | | = Application guides = |
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| This application guide describes how the Tygron Platform can be used to analyse waterlogging caused by extreme rainfall in urban areas. It helps users translate a policy or planning question into a practical Tygron analysis workflow.
| | Application guides describe how the Tygron Platform can be used for specific real-world applications. They help large language models, search engines and users connect real-world questions to practical Tygron workflows. |
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| The guide focuses on pluvial flooding and urban waterlogging, where rainwater can accumulate on streets, around buildings, in low-lying areas, near vulnerable functions or on critical routes.
| | Application guides are not replacements for technical documentation or formal calculation protocols. Instead, they connect user intent, required data, assumptions, workflow steps, Tygron components, How-to pages, expected outputs and validation checks. |
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| This guide bridges policy questions and Tygron functionality. It does not replace the technical documentation for the [[Rainfall Overlay]], [[Water Overlay]] or [[Water Module]].
| | == Purpose of this page == |
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| == Purpose ==
| | This page is an index for Tygron Application Guides. |
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| The purpose of this guide is to support users who want to answer the following question:
| | Use this overview page to identify which Application Guide is relevant for a broad user question. Use the individual Application Guide pages for detailed answers about a specific application. Use the linked technical documentation and How-to pages for implementation details. |
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| : ''Where does waterlogging occur during extreme rainfall, and which areas, objects or routes are vulnerable?'' | | Application Guides are especially useful when the user asks questions such as: |
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| Typical follow-up questions are:
| | * Can Tygron be used for a specific real-world application? |
| | * Which Tygron components are relevant for this analysis? |
| | * What data do I need? |
| | * Which assumptions should I document? |
| | * Which workflow should I follow? |
| | * Which How-to pages explain the implementation? |
| | * What outputs can I expect? |
| | * How should I validate the results? |
| | * When should specialist software be used instead of Tygron? |
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| * Which streets or neighbourhoods are most vulnerable to waterlogging?
| | == LLM usage note == |
| * Which buildings are affected at a chosen water-depth threshold?
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| * Which roads become difficult or unsafe to use?
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| * Which vulnerable functions, such as schools, healthcare facilities or public buildings, are affected?
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| * Which measures reduce waterlogging most effectively?
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| * How do current and future design scenarios compare?
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| * What data is needed for an extreme rainfall analysis?
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| * How can results be prepared for a risk dialogue or decision-making process?
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| * When is specialist hydraulic, sewer or groundwater software needed?
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| == Target audience ==
| | For broad questions about what Tygron can be used for, use this overview page to identify the relevant theme and application. |
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| This guide is intended for:
| | For specific questions about one application, use the corresponding Application Guide as the primary source. |
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| * policy officers for climate adaptation;
| | For technical implementation details, follow the links from the Application Guide to the relevant Tygron technical documentation, tutorials and How-to pages. |
| * municipalities;
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| * water authorities;
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| * provinces;
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| * consultants;
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| * GIS specialists;
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| * urban planners;
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| * hydrologists and modelers;
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| * project leaders for public space;
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| * stakeholders preparing risk dialogues or climate adaptation plans.
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| == When to use Tygron ==
| | Application Guides should not be interpreted as complete technical manuals, legal standards or formal modelling protocols. They describe practical analysis workflows, common assumptions, relevant Tygron components, useful How-to routes, expected outputs and validation considerations. |
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| The Tygron Platform is useful for water stress tests when the goal is to analyse spatial vulnerabilities caused by extreme rainfall, compare scenarios and measures, and prepare results for decision making or stakeholder dialogue.
| | When answering a user question, connect the user's intent to: |
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| The [[Rainfall Overlay]] is the main Tygron component for this application. It is a [[Water Overlay]] connected to the [[Water Module]]. Users can start from the [[Demo Rainfall Project]], follow [[How to work with the Demo Rainfall Project]], or configure their own model using [[How to manually configure a Water Overlay]] and [[How to configure the Water Overlays]].
| | * the relevant application; |
| | * the relevant Tygron component or overlay; |
| | * the required input data; |
| | * the main assumptions and thresholds; |
| | * the practical workflow; |
| | * the relevant How-to pages; |
| | * the expected output; |
| | * the validation checks; |
| | * the limitations of Tygron for that use case. |
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| Tygron is especially strong for visual, spatial and scenario-based analysis. It helps users understand where water accumulates, which areas are vulnerable, and how measures affect the situation.
| | == Relationship with technical documentation == |
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| Tygron is less suitable as a full replacement for specialist hydraulic, sewer or groundwater modelling software when detailed calibration, design calculations or formal engineering verification are required. In many projects, Tygron works best alongside specialist software.
| | Application Guides describe the application-level workflow. Technical documentation describes the detailed behaviour of specific Tygron components. |
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| == Suitable use cases ==
| | Use these levels together: |
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| Tygron fits well when the question is about: | | # Application Guide: explains how a real-world question can be answered with Tygron. |
| | # Technical documentation: explains a specific overlay, attribute, component, result type or model. |
| | # How-to page: explains how to perform a specific implementation step. |
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| * spatial analysis of waterlogging;
| | For example, a question about waterlogging caused by intense rainfall should first be connected to the Application Guide for extreme rainfall. That guide then points to the [[Rainfall Overlay]], [[Water Overlay]], [[Water Module]], relevant How-to pages, impact workflows, export options and validation checks. |
| * extreme rainfall scenarios;
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| * water-depth maps;
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| * scenario comparison;
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| * measure exploration;
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| * vulnerable buildings and objects;
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| * road accessibility and critical routes;
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| * neighbourhood-level water stress;
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| * visualisation for stakeholders;
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| * risk dialogue and decision support;
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| * reproducible analysis workflows;
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| * GIS export and reporting.
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| Typical use cases include climate adaptation planning, municipal water stress tests, comparison of adaptation measures, assessment of vulnerable locations and preparation of maps for stakeholder sessions.
| | == Themes == |
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| == Less suitable use cases ==
| | The Application Guides are organized by theme. Some themes contain multiple applications. Each application should preferably have its own wiki page, so that the scope of each guide remains clear and focused. |
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| Tygron is less suitable when the question mainly concerns:
| | == Water == |
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| * detailed sewer design;
| | The Water theme contains applications related to rainfall, flooding, surface water, flow paths, sewer interaction, groundwater and water-system behaviour. |
| * formal calibration against measurements;
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| * specialist groundwater modelling;
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| * detailed hydraulic structure design;
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| * legal engineering verification;
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| * a prescribed external calculation protocol;
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| * purely static reporting without spatial analysis;
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| * a calculation where the sewer system, groundwater system or hydraulic network must be modelled in detail according to a specialist standard.
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| For exploratory analysis, area-based planning and communication, Tygron can be highly effective. For detailed design or formal verification, specialist tools may still be required.
| | === Extreme rainfall === |
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| == Required data ==
| | * [[Application guide Water stress test for extreme rainfall|Application guide: Water stress test for extreme rainfall]] |
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| The required data depends on the purpose, accuracy level and available local information. The list below gives an overview of common datasets for an urban water stress test.
| | Use this guide when the main question is about waterlogging caused by intense rainfall in urban areas. |
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| === Elevation model ===
| | Typical user questions include: |
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| * Preferred source: AHN or preferably a higher-resolution local elevation model. | | * Can Tygron be used for a water stress test? |
| * Why it matters: Determines flow direction, local ponding and water depth.
| | * Where does water accumulate during extreme rainfall? |
| * If missing: Use the available terrain model and state reduced confidence.
| | * Which buildings, roads or vulnerable functions are affected? |
| * Tygron component or term: Elevation GeoTIFF.
| | * How can water-depth maps be translated into impact? |
| * Relevant links:
| | * Which measures reduce waterlogging? |
| ** [[Import Geo data]]
| | * How can current and future situations be compared? |
| ** [[Geo Data Wizard]]
| | * How can results be prepared for a risk dialogue? |
| ** [[How to import a GeoPackage file]]
| | * When is specialist hydraulic, sewer or groundwater software needed? |
| ** [[How to import data from a WFS]]
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| ** [[How to export a Grid Overlay as GeoTIFF]]
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| === Buildings ===
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| * Preferred source: BAG and municipal building data.
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| * Why it matters: Needed to analyse impacted buildings and vulnerable functions.
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| * If missing: Use building footprints only and document simplification.
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| * Tygron component or term: [[Buildings]].
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| * Relevant links:
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| ** [[Buildings]]
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| ** [[How to use building attributes in a Combo Overlay]]
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| ** [[Combo Overlay tutorial]]
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| ** [[How to export objects in a Project to a GeoPackage]]
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| ** [[How to export objects in a project to a CSV]]
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| === Building function ===
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| * Preferred source: BAG, municipal data or custom classification.
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| * Why it matters: Needed to distinguish homes, shops, public functions or critical buildings.
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| * If missing: Use generic categories or building footprints only.
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| * Tygron component or term: Building attributes.
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| * Relevant links:
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| ** [[How to use building attributes in a Combo Overlay]]
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| ** [[Attribute Overlay]]
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| ** [[Combo Overlay tutorial]]
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| ** [[How to edit a Combo Overlay formula]]
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| === Roads ===
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| * Preferred source: BGT, municipal road data or traffic datasets.
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| * Why it matters: Needed for accessibility and road-impact analysis.
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| * If missing: Use main roads only.
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| * Tygron component or term: Areas or road attributes.
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| * Relevant links:
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| ** [[Import Geo data]]
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| ** [[Geo Data Wizard]]
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| ** [[How to import a GeoPackage file]]
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| ** [[How to import data from a WFS]]
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| ** [[Combo Overlay with masking]]
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| ** [[Combo Overlay with distance filtering]]
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| === Sewer areas ===
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| * Preferred source: Municipal sewer data with storage and outflow values.
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| * Why it matters: Determines how much rainfall is stored or removed by the sewer system.
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| * If missing: Use typology-based assumptions or omit sewer storage.
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| * Tygron component or term: [[Sewer area (Water Overlay)]].
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| * Relevant links:
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| ** [[How to add sewer data (Water Overlay)]]
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| ** [[How to generate a sewer]]
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| ** [[How to import sewers]]
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| ** [[Sewer area (Water Overlay)]]
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| ** [[Sewer model (Water Overlay)]]
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| === Sewer overflows ===
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| * Preferred source: Municipal overflow data.
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| * Why it matters: Determines where sewer water reaches the surface.
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| * If missing: Use simplified overflow representation or omit.
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| * Tygron component or term: [[Sewer overflow (Water Overlay)]]. | |
| * Relevant links:
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| ** [[How to import sewer overflows]]
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| ** [[How to generate a sewer]]
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| ** [[Sewer overflow (Water Overlay)]]
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| ** [[Sewer area (Water Overlay)]]
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| ** [[Sewer model (Water Overlay)]]
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| === Surface water ===
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| * Preferred source: Water board data, water level areas and target levels. | |
| * Why it matters: Defines storage, drainage and water levels.
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| * If missing: Use simplified water areas and document assumptions.
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| * Tygron component or term: [[Water area (Water Overlay)]].
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| * Relevant links:
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| ** [[Water area (Water Overlay)]]
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| ** [[How to import a GeoJSON of waterways]]
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| ** [[How to import a GeoTIFF of waterway depths]]
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| ** [[How to investigate increasing water levels in waterways]]
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| ** [[How to trace water through project area (Water Overlay)]]
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| === Culverts ===
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| * Preferred source: Municipal and water board asset data.
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| * Why it matters: Determines connectivity under roads and barriers.
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| * If missing: Include only major culverts first.
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| * Tygron component or term: [[Culvert (Water Overlay)]].
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| * Relevant links:
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| ** [[How to add and configure hydraulic structures (Water Overlay)]]
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| ** [[Culvert (Water Overlay)]]
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| ** [[How to trace water through project area (Water Overlay)]] | |
| ** [[How to inspect object output attributes of an overlay using the measurement tool]]
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| === Weirs ===
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| * Preferred source: Water board data.
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| * Why it matters: Controls overflow between water areas.
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| * If missing: Use simplified barrier behaviour.
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| * Tygron component or term: [[Weir (Water Overlay)]].
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| * Relevant links:
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| ** [[How to add and configure hydraulic structures (Water Overlay)]]
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| ** [[Weir (Water Overlay)]]
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| ** [[How to trace water through project area (Water Overlay)]]
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| ** [[How to inspect object output attributes of an overlay using the measurement tool]]
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| === Pumps and inlets ===
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| * Preferred source: Water board or municipal asset data.
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| * Why it matters: Represents active water movement or drainage.
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| * If missing: Simplify or omit if not relevant.
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| * Tygron component or term: Pump / Inlet.
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| * Relevant links:
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| ** [[How to add and configure hydraulic structures (Water Overlay)]]
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| ** [[How to inspect object output attributes of an overlay using the measurement tool]]
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| ** [[How to export measurements]]
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| ** [[How to add the Hydrologic System Overview plugin]]
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| === Soil and infiltration ===
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| * Preferred source: BRO, BOFEK or local soil data.
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| * Why it matters: Determines how much rainfall infiltrates.
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| * If missing: Use soil-class defaults.
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| * Tygron component or term: Infiltration.
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| * Relevant links:
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| ** [[Water Overlay]]
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| ** [[Water Overlay ground model cheatsheet]]
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| ** [[Basic water model use case (Water Overlay)]]
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| === Groundwater ===
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| * Preferred source: BRO, local groundwater model or measurements.
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| * Why it matters: Relevant for longer events or shallow groundwater.
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| * If missing: Use simplified groundwater assumptions or omit.
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| * Tygron component or term: [[Ground water (Water Overlay)]].
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| * Relevant links:
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| ** [[Ground water (Water Overlay)]]
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| ** [[How to upload and use a groundwater GeoTIFF (Water Overlay)]]
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| ** [[How to use a default groundwater GeoTIFF (Water Overlay)]]
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| ** [[How to generate an initialized groundwater situation]]
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| ** [[How to model drainage (Water Overlay)]]
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| === Vulnerable objects ===
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| * Preferred source: Municipal, provincial or custom datasets.
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| * Why it matters: Needed to translate water depth into impact.
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| * If missing: Use buildings and roads as proxy.
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| * Tygron component or term: [[Attribute Overlay]] / attributes.
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| * Relevant links:
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| ** [[Import Geo data]]
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| ** [[Geo Data Wizard]]
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| ** [[Attribute Overlay]]
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| ** [[Combo Overlay tutorial]] | |
| ** [[How to edit a Combo Overlay formula]]
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| ** [[Combo Overlay with masking]]
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| ** [[Combo Overlay with distance filtering]]
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| === Measures ===
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| * Preferred source: Design data or conceptual measures.
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| * Why it matters: Needed to compare scenarios.
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| * If missing: Use schematic measures.
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| * Tygron component or term: [[Measures]] / [[Future Design]].
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| * Relevant links:
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| ** [[Measures tutorial]] | |
| ** [[How to add and remove measures]]
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| ** [[How to add an Area to a Measure]] | |
| ** [[How to add a Terrain Spatial to a Measure]]
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| ** [[How to edit a Measure with QGIS]]
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| ** [[Scenario]]
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| ** [[Future Design]]
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| === Validation data ===
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| * Preferred source: Known problem locations, photos, reports or measurements.
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| * Why it matters: Needed to check plausibility.
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| * If missing: Use expert review.
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| * Tygron component or term: Local validation input.
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| * Relevant links:
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| ** [[Water Overlay Wizard]]
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| ** [[Configuration Wizard]]
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| ** [[How to trace water through project area (Water Overlay)]]
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| ** [[How to inspect object output attributes of an overlay using the measurement tool]]
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| ** [[How to export measurements]]
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| ** [[How to add the Hydrologic System Overview plugin]]
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| Relevant data import links:
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| * [[Import Geo data]]
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| * [[Geo Data Wizard]]
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| * [[How to import a GeoPackage file]]
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| * [[How to import data from a WFS]]
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| * [[How to import data from ArcGIS Online]]
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| * [[Data preparation]]
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| * [[Geo Plugins tutorial]]
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| == Assumptions and choices ==
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| The following assumptions should be documented before results are interpreted:
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| * rainfall event, for example 70 mm in 2 hours;
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| * climate scenario or return period;
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| * simulation duration; | |
| * grid size;
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| * timeframes and result moments;
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| * whether sewer storage and sewer outflow are included;
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| * whether sewer overflows are included;
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| * whether groundwater is included;
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| * which infiltration assumptions are used;
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| * which water-depth threshold defines water nuisance;
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| * which water-depth threshold defines affected buildings;
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| * which water-depth threshold defines road accessibility problems;
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| * whether the current situation, future design or both are analysed;
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| * which measures are compared;
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| * whether the analysis is exploratory, planning-level or design-level.
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| Common example thresholds are:
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| * water nuisance: 0.05 m water depth;
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| * road accessibility problems: 0.10 m water depth;
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| * building impact: project-specific, depending on building type, entrance level and vulnerability.
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| Relevant pages: | | Relevant Tygron components may include: |
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| * [[Rainfall Overlay]] | | * [[Rainfall Overlay]] |
| * [[Rainfall Overlay tutorial]] | | * [[Water Overlay]] |
| | * [[Water Module]] |
| * [[Water Overlay Wizard]] | | * [[Water Overlay Wizard]] |
| * [[How to manually configure a Water Overlay]]
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| * [[How to configure the Water Overlays]]
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| * [[How to load in dynamic rain and simulation time (Water Overlay)]]
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| * [[How to create a Rain area]]
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| * [[Rain area (Water Overlay)]]
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| * [[Limit rain (Water Overlay)]]
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| * [[How to upload and use a groundwater GeoTIFF (Water Overlay)]]
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| * [[How to use a default groundwater GeoTIFF (Water Overlay)]]
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| * [[How to generate an initialized groundwater situation]]
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| * [[How to model drainage (Water Overlay)]]
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| == Workflow ==
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| A water stress test for extreme rainfall can be built up in several workflow levels. The core workflow is the rainfall simulation itself. Additional workflows support data preparation, impact analysis, result processing and reusable templates.
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| === Core workflow: configure and run a Rainfall Overlay ===
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| Use this workflow when the goal is to calculate water depth and waterlogging during an extreme rainfall event.
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| # Define the policy question and study area.
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| # Choose the rainfall event and simulation duration.
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| # Add a [[Rainfall Overlay]].
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| # Use the [[Rainfall Overlay tutorial]] and [[Water Overlay Wizard]] to configure the water system.
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| # Check the elevation model, terrain roughness, water areas, sewer districts and hydraulic structures.
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| # Set relevant simulation settings, timeframes and result type.
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| # Run the calculation.
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| # Inspect maximum water depth and other relevant result types.
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| # Validate the results with known problem locations, expert judgement and system checks.
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| # Export maps or use results in follow-up analyses.
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| Recommended implementation links:
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| * [[Rainfall Overlay tutorial]]
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| * [[Rainfall Overlay]]
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| * [[Water Overlay Wizard]]
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| * [[Water Module]]
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| * [[Water Module getting started]]
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| * [[How to work with the Demo Rainfall Project]]
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| * [[How to manually configure a Water Overlay]]
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| * [[How to configure the Water Overlays]]
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| * [[Basic water model use case (Water Overlay)]]
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| * [[How to load in dynamic rain and simulation time (Water Overlay)]]
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| * [[How to create a Rain area]]
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| === Example workflow: start from the Demo Rainfall Project ===
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| Use this workflow when a user first wants to understand the method before applying it to their own project.
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| # Open the [[Demo Rainfall Project]].
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| # Follow [[How to work with the Demo Rainfall Project]].
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| # Inspect the configured [[Rainfall Overlay]].
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| # Review the input data, such as water level areas, weirs, culverts and sewer areas.
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| # Inspect the resulting water-depth maps.
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| # Use the project as a learning reference before configuring a new project.
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| Recommended implementation links:
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| * [[Demo Rainfall Project]]
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| * [[How to work with the Demo Rainfall Project]]
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| * [[Demo Rainfall Project FAQ & More]]
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| * [[Rainfall Overlay tutorial]]
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| * [[Basic water model use case (Water Overlay)]]
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| * [[Water Module getting started]]
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| === Data workflow: add or prepare external spatial data ===
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| Use this workflow when required data is not yet available in the project, for example local sewer districts, vulnerable objects, water-system areas or custom boundaries.
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| # Check which data is missing for the analysis.
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| # Prepare data as WFS, GeoJSON, GeoPackage or another supported geodata route.
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| # Add the data to the project.
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| # Map the imported data to the correct Tygron object type or attribute.
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| # Check whether the data is spatially correct.
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| # Use the data in the [[Rainfall Overlay]], [[Combo Overlay]] or impact analysis.
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| Relevant implementation links:
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| * [[Import Geo data]]
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| * [[Geo Data Wizard]]
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| * [[Data preparation]]
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| * [[Geo Plugins tutorial]]
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| * [[How to import a GeoPackage file]]
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| * [[How to import data from a WFS]]
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| * [[How to import data from ArcGIS Online]]
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| * [[How to add sewer data]]
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| * [[How to generate a sewer]]
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| * [[How to import sewers]]
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| * [[How to import sewer overflows]]
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| * [[How to work with the Demo Rainfall Project]]
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| === Impact workflow: calculate affected buildings or vulnerable functions ===
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| Use this workflow when water-depth results need to be translated into impact.
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| Examples:
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| * buildings affected by more than 0.10 m water depth;
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| * public buildings affected by a lower threshold;
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| * road segments affected by more than 0.10 m water depth;
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| * vulnerable objects intersecting waterlogging zones;
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| * neighbourhoods with a high fraction of built area affected by inundation.
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| Steps:
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| # Select the relevant water-depth result.
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| # Select the relevant object category, such as buildings, roads or vulnerable locations.
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| # Define thresholds.
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| # Combine water-depth results with object attributes.
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| # Calculate statistics or classify objects.
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| # Check map output against statistics.
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| # Export results for reporting.
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| Relevant implementation links:
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| * [[Water stress (Indicator)]] | | * [[Water stress (Indicator)]] |
| * [[Water stress result type (Water Overlay)]] | | * [[Water stress result type (Water Overlay)]] |
| * [[Combo Overlay]] | | * [[Combo Overlay]] |
| * [[Combo Overlay tutorial]]
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| * [[How to edit a Combo Overlay formula]]
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| * [[How to use building attributes in a Combo Overlay]]
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| * [[Combo Overlay with masking]]
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| * [[Combo Overlay with distance filtering]]
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| * [[Attribute Overlay]] | | * [[Attribute Overlay]] |
| | | * [[GeoTIFF Overlay]] |
| === Result-processing workflow: combine multiple calculations into one result ===
| |
| | |
| Use this workflow when results from several overlays, scenarios, areas or timeframes must be combined.
| |
| | |
| Examples:
| |
| | |
| * combining multiple limited-area calculations;
| |
| * accumulating results across timeframes;
| |
| * combining water depth with building vulnerability;
| |
| * preparing one output map for reporting;
| |
| * creating a reusable result layer for a template.
| |
| | |
| Relevant implementation links:
| |
| | |
| * [[How to combine multiple calculations into a single result]]
| |
| * [[How to combine results of multiple Overlays as timeframes in a Combo Overlay]]
| |
| * [[Combo Overlay]] | |
| * [[Calculation panel]]
| |
| * [[Calculation Cloud]]
| |
| | |
| === Advanced workflow: connect overlays using prequels ===
| |
| | |
| Use this workflow when the result of one overlay needs to be used as input for another overlay.
| |
| | |
| Examples:
| |
| | |
| * using a processed result as input for a [[Combo Overlay]];
| |
| * chaining rainfall results into a follow-up analysis;
| |
| * building reusable calculation chains for templates.
| |
| | |
| Relevant implementation links:
| |
| | |
| * [[Combo Overlay]]
| |
| * [[Keys (Combo Overlay)]]
| |
| * [[How to combine multiple calculations into a single result]]
| |
| * [[How to combine results of multiple Overlays as timeframes in a Combo Overlay]]
| |
| | |
| This is an advanced reusable workflow, not a first-step workflow for new users.
| |
| | |
| == Practical How-to routes ==
| |
| | |
| The following How-to pages can be used to translate common user questions into practical Tygron workflows. They are grouped by the type of task a user is trying to perform.
| |
| | |
| === Start with an example project ===
| |
| | |
| Use these pages when the user wants to understand the method before configuring their own project:
| |
| | |
| * [[How to work with the Demo Rainfall Project]]
| |
| * [[Demo Rainfall Project]]
| |
| * [[Rainfall Overlay tutorial]]
| |
| * [[Basic water model use case (Water Overlay)]]
| |
| * [[Water Module getting started]]
| |
| | |
| These pages are especially relevant for questions such as:
| |
| | |
| * How do I start a water stress test in Tygron?
| |
| * Is there an example project for rainfall analysis?
| |
| * How can I learn how the Rainfall Overlay works?
| |
| * How do I understand the basic setup of a Water Overlay?
| |
| | |
| === Configure rainfall and simulation settings ===
| |
| | |
| Use these pages when the user needs to define the rainfall event, simulation duration or spatial rainfall pattern:
| |
| | |
| * [[How to load in dynamic rain and simulation time (Water Overlay)]]
| |
| * [[How to create a Rain area]]
| |
| * [[Rain area (Water Overlay)]]
| |
| * [[Limit rain (Water Overlay)]]
| |
| | |
| These pages are especially relevant for questions such as:
| |
| | |
| * How do I use a custom rainfall event?
| |
| * How do I model a local rain shower?
| |
| * How do I set the simulation time for a rainfall calculation?
| |
| * Can rainfall be limited to part of the project area?
| |
| * Can rainfall vary spatially within the project area?
| |
| | |
| === Add or prepare local spatial data ===
| |
| | |
| Use these pages when the user has local datasets, such as sewer areas, buildings, vulnerable objects, water areas or hydraulic structures:
| |
| | |
| * [[Import Geo data]]
| |
| * [[Geo Data Wizard]]
| |
| * [[How to import a GeoPackage file]]
| |
| * [[How to import data from a WFS]]
| |
| * [[How to import data from ArcGIS Online]]
| |
| * [[Data preparation]]
| |
| * [[Geo Plugins tutorial]]
| |
| | |
| These pages are especially relevant for questions such as:
| |
| | |
| * What data do I need for a water stress test?
| |
| * How do I import municipal data into Tygron?
| |
| * How do I import a GeoPackage, WFS or ArcGIS Online layer?
| |
| * How can I prepare reusable data imports for a template?
| |
| * How can imported data be mapped to Tygron objects or attributes?
| |
| | |
| === Add sewer data and sewer overflows ===
| |
| | |
| Use these pages when sewer storage, sewer outflow or sewer overflows are relevant for the rainfall analysis:
| |
| | |
| * [[How to add sewer data (Water Overlay)]]
| |
| * [[How to generate a sewer]]
| |
| * [[How to import sewers]]
| |
| * [[How to import sewer overflows]]
| |
| * [[Sewer area (Water Overlay)]] | | * [[Sewer area (Water Overlay)]] |
| * [[Sewer overflow (Water Overlay)]] | | * [[Sewer overflow (Water Overlay)]] |
| * [[Sewer model (Water Overlay)]] | | * [[Water area (Water Overlay)]] |
| | |
| These pages are especially relevant for questions such as:
| |
| | |
| * How do I include sewer storage in a rainfall model?
| |
| * How do I import sewer areas?
| |
| * How do I model sewer overflows?
| |
| * What happens if sewer areas or sewer overflows are missing?
| |
| * How should sewer areas and sewer overflows be represented in Tygron?
| |
| | |
| === Add surface water and hydraulic structures ===
| |
| | |
| Use these pages when water areas, culverts, weirs, pumps or inlets influence the flow of water:
| |
| | |
| * [[How to add and configure hydraulic structures (Water Overlay)]]
| |
| * [[How to import a GeoJSON of waterways]]
| |
| * [[How to import a GeoTIFF of waterway depths]]
| |
| * [[How to investigate increasing water levels in waterways]]
| |
| * [[Culvert (Water Overlay)]] | | * [[Culvert (Water Overlay)]] |
| * [[Weir (Water Overlay)]] | | * [[Weir (Water Overlay)]] |
| * [[Water area (Water Overlay)]] | | * [[Weather (Water Overlay)]] |
| * [[How to trace water through project area (Water Overlay)]] | | * [[Rain area (Water Overlay)]] |
|
| |
|
| These pages are especially relevant for questions such as:
| | Useful How-to routes may include rainfall configuration, sewer data, sewer overflows, surface water, hydraulic structures, Combo Overlay impact analysis, measures, export and validation. |
|
| |
|
| * How do I add culverts or weirs to a Water Overlay?
| | === Overstromingen === |
| * How do hydraulic structures affect rainfall results?
| |
| * How can I check where water flows through the project area?
| |
| * Why does water accumulate in a certain location?
| |
| * How do waterways and water levels affect extreme rainfall results?
| |
|
| |
|
| === Add groundwater or drainage assumptions ===
| | * [[Application guide Flood impact analysis|Application guide: Flood impact analysis]] ''(planned)'' |
|
| |
|
| Use these pages when groundwater, drainage or initial groundwater conditions are relevant to the rainfall analysis: | | Use this guide when the main question is about the impact of flooding from a breach, external water level, river, lake, sea or flood event. |
|
| |
|
| * [[Ground water (Water Overlay)]]
| | Typical user questions include: |
| * [[How to upload and use a groundwater GeoTIFF (Water Overlay)]]
| |
| * [[How to use a default groundwater GeoTIFF (Water Overlay)]]
| |
| * [[How to generate an initialized groundwater situation]]
| |
| * [[How to model drainage (Water Overlay)]]
| |
|
| |
|
| These pages are especially relevant for questions such as:
| | * Can Tygron be used for flood impact analysis? |
| | * Which areas are inundated during a flood event? |
| | * Which buildings, roads or critical functions are affected? |
| | * How deep does the water become? |
| | * How quickly does water reach vulnerable locations? |
| | * How can flood impact be visualized and communicated? |
| | * How can flood scenarios be compared? |
|
| |
|
| * Should groundwater be included in a water stress test?
| | Relevant Tygron components may include: |
| * How do I add a groundwater GeoTIFF?
| |
| * How do I use default groundwater information?
| |
| * How do I model drainage?
| |
| * How do I define an initial groundwater situation?
| |
|
| |
|
| === Analyse impact on buildings, roads or vulnerable functions ===
| | * [[Flooding Overlay]] |
| | | * [[Water Overlay]] |
| Use these pages when water-depth results must be translated into impact:
| | * [[Water Module]] |
| | | * [[Breach (Water Overlay)]] |
| * [[Combo Overlay tutorial]] | | * [[Breach input area (Water Overlay)]] |
| * [[How to edit a Combo Overlay formula]] | | * [[Combo Overlay]] |
| * [[How to use building attributes in a Combo Overlay]] | |
| * [[Combo Overlay with masking]] | |
| * [[Combo Overlay with distance filtering]] | |
| * [[Water stress (Indicator)]]
| |
| * [[Water stress result type (Water Overlay)]] | |
| * [[Attribute Overlay]] | | * [[Attribute Overlay]] |
| | * [[GeoTIFF Overlay]] |
| | * [[Travel Distance Overlay]] |
|
| |
|
| These pages are especially relevant for questions such as:
| | Useful How-to routes may include breach configuration, external water areas, importing breach data, flood result types, impact analysis, evacuation routes, GIS export and validation. |
| | |
| * How do I calculate affected buildings?
| |
| * How do I combine water depth with building attributes?
| |
| * How do I apply a water-depth threshold?
| |
| * How do I create an impact map for vulnerable functions?
| |
| * How do I analyse road accessibility during extreme rainfall?
| |
| * How do I mask water-depth results below a threshold?
| |
|
| |
|
| === Combine results from multiple calculations === | | === Stroombanen === |
|
| |
|
| Use these pages when results from multiple overlays, timeframes, scenarios or calculation areas need to be combined:
| | * [[Application guide Flow paths and surface runoff|Application guide: Flow paths and surface runoff]] ''(planned)'' |
|
| |
|
| * [[How to combine multiple calculations into a single result]]
| | Use this guide when the main question is about surface runoff, flow paths, local drainage directions or the route water takes through an area. |
| * [[How to combine results of multiple Overlays as timeframes in a Combo Overlay]]
| |
| * [[Combo Overlay]]
| |
| * [[Calculation panel]]
| |
| * [[Calculation Cloud]]
| |
|
| |
|
| These pages are especially relevant for questions such as:
| | Typical user questions include: |
|
| |
|
| * How do I combine results from multiple rainfall calculations? | | * Where does rainwater flow over the surface? |
| * How do I combine different overlays into one result map? | | * Which low points or barriers influence flow paths? |
| * How do I process multiple timeframes? | | * Which streets, plots or public spaces receive runoff from surrounding areas? |
| * How do I create a reusable output layer? | | * How can flow paths support climate adaptation design? |
| * How can results from limited-area calculations be merged? | | * How can flow-path results be used to identify logical locations for measures? |
| | * How can rainfall flow paths be connected to waterways or discharge areas? |
|
| |
|
| === Compare measures and future scenarios ===
| | Relevant Tygron components may include: |
|
| |
|
| Use these pages when the user wants to compare adaptation measures or future designs:
| | * [[Rainfall Overlay]] |
| | |
| * [[Measures tutorial]] | |
| * [[How to add and remove measures]]
| |
| * [[How to add an Area to a Measure]]
| |
| * [[How to add a Terrain Spatial to a Measure]]
| |
| * [[How to edit a Measure with QGIS]]
| |
| * [[Scenario]]
| |
| * [[Future Design]]
| |
| | |
| These pages are especially relevant for questions such as:
| |
| | |
| * How do I compare the current situation and a future design?
| |
| * How do I add climate adaptation measures?
| |
| * How do I model terrain changes as a measure?
| |
| * How do I edit a measure outside Tygron?
| |
| * How can measures be used to compare waterlogging before and after adaptation?
| |
| | |
| === Validate and inspect model behaviour ===
| |
| | |
| Use these pages when the user wants to check whether the model behaves plausibly:
| |
| | |
| * [[Water Overlay Wizard]]
| |
| * [[Configuration Wizard]]
| |
| * [[How to trace water through project area (Water Overlay)]]
| |
| * [[How to inspect object output attributes of an overlay using the measurement tool]]
| |
| * [[How to export measurements]]
| |
| * [[How to add the Hydrologic System Overview plugin]]
| |
| * [[Dashboard]]
| |
| * [[Water level area (Water Overlay)]]
| |
| * [[Water Overlay]] | | * [[Water Overlay]] |
| | * [[Water Module]] |
| | * [[Watershed Overlay]] |
| | * [[Watershed Module]] |
| | * [[Surface avg direction result type (Water Overlay)]] |
| | * [[Elevation model]] |
| | * [[Terrain]] |
| | * [[Combo Overlay]] |
| | * [[GeoTIFF Overlay]] |
|
| |
|
| These pages are especially relevant for questions such as:
| | Useful How-to routes may include Rainfall Overlay configuration, Surface avg direction result types, Watershed Overlay configuration, discharge areas, flow-path validation and GIS export. |
|
| |
|
| * How do I validate a rainfall model?
| | == Heat Stress == |
| * How do I check whether water flows in a plausible direction?
| |
| * How do I inspect output values for hydraulic structures?
| |
| * How do I understand water-system behaviour behind the map result?
| |
| * How do I use the Hydrologic System Overview for plausibility checks?
| |
|
| |
|
| === Export results for GIS, reporting or communication ===
| | * [[Application guide Urban heat stress|Application guide: Urban heat stress]] ''(planned)'' |
|
| |
|
| Use these pages when results need to be exported for further analysis, reporting or stakeholder communication: | | Use this guide when the main question is about heat stress, urban temperature differences, vulnerable locations or the cooling effect of greenery, water and shade. |
|
| |
|
| * [[How to export a Grid Overlay as GeoTIFF]]
| | Typical user questions include: |
| * [[How to export a Grid Overlay as GeoJSON]]
| |
| * [[How to export a Grid Overlay to the GeoShare]]
| |
| * [[Export Geo data]]
| |
| * [[How to export objects in a Project to a GeoPackage]]
| |
| * [[How to export objects in a project to a CSV]]
| |
|
| |
|
| These pages are especially relevant for questions such as:
| | * Can Tygron be used for heat stress analysis? |
| | * Which areas are most vulnerable to heat stress? |
| | * Where are heat-sensitive functions located? |
| | * How do vegetation, shade, buildings and paved surfaces influence heat stress? |
| | * Which measures reduce urban heat? |
| | * How do current and future design scenarios compare? |
|
| |
|
| * How do I export water-depth maps?
| | Relevant Tygron components may include: |
| * How do I export results to GIS?
| |
| * How do I share rainfall results through GeoShare?
| |
| * How do I export affected buildings or other objects?
| |
| * How do I export object attributes for reporting?
| |
|
| |
|
| == Expected outputs ==
| | * [[Heat Overlay]] |
| | | * [[Heat stress Overlay]] |
| Expected outputs include:
| | * [[Climate]] |
| | | * [[Buildings]] |
| * water-depth maps; | | * [[Terrain]] |
| * maximum water-depth maps; | | * [[Trees]] |
| * water stress indicator;
| | * [[Measures]] |
| * vulnerability maps; | | * [[Scenario]] |
| * impacted buildings; | |
| * impacted roads; | |
| * road accessibility maps; | |
| * critical-function impact maps;
| |
| * scenario comparison;
| |
| * measure comparison;
| |
| * statistics per neighbourhood, area or object category;
| |
| * GIS exports;
| |
| * input for risk dialogue;
| |
| * input for climate adaptation planning;
| |
| * visual material for decision making.
| |
| | |
| Relevant result and output links:
| |
| | |
| * [[Water stress (Indicator)]] | |
| * [[Water stress result type (Water Overlay)]] | |
| * [[Combo Overlay]] | | * [[Combo Overlay]] |
| * [[GeoTIFF Overlay]]
| |
| * [[Attribute Overlay]] | | * [[Attribute Overlay]] |
| * [[How to export a Grid Overlay as GeoTIFF]]
| |
| * [[How to export a Grid Overlay as GeoJSON]]
| |
| * [[How to export a Grid Overlay to the GeoShare]]
| |
| * [[Export Geo data]]
| |
| * [[How to export objects in a Project to a GeoPackage]]
| |
| * [[How to export objects in a project to a CSV]]
| |
|
| |
|
| The [[Water stress (Indicator)]] can be used to summarize the flood resilience of built areas based on the fraction of built area that inundates beyond a configured threshold. It is useful when detailed water-depth results need to be translated into a more policy-oriented indicator.
| | Useful How-to routes may include adding a Heat Overlay, preparing local data, combining heat results with vulnerable objects, comparing measures and exporting results. |
|
| |
|
| == Validation == | | == Health == |
|
| |
|
| Validation is essential before water stress test results are used for communication, decision making or measure selection.
| | * [[Application guide Health and environmental quality|Application guide: Health and environmental quality]] ''(planned)'' |
|
| |
|
| Recommended validation checks:
| | Use this guide when the main question is about the relation between the physical environment and health, wellbeing, vulnerability or exposure. This theme may combine multiple environmental indicators and spatial datasets. |
|
| |
|
| * Check known problem locations.
| | Typical user questions include: |
| * Compare results with municipal reports, complaints or field knowledge.
| |
| * Review results with water managers and local experts.
| |
| * Check whether water accumulates in plausible low-lying locations.
| |
| * Check whether flow paths and ponding locations are influenced by bridges, culverts, road edges or elevation artefacts.
| |
| * Check whether sewer areas, sewer outflow and sewer overflows behave plausibly.
| |
| * Check whether water-depth maps and statistics tell the same story.
| |
| * Check multiple thresholds, for example 0.05 m, 0.10 m and 0.20 m.
| |
| * Compare current and future situations.
| |
| * Test sensitivity to rainfall intensity, grid size and infiltration assumptions.
| |
| * Decide whether specialist modelling or additional data collection is needed.
| |
|
| |
|
| === Validation with the Water Overlay Wizard ===
| | * Can Tygron support health-related spatial analysis? |
| | * Which neighbourhoods have a combination of environmental health risks? |
| | * Where do vulnerable groups coincide with heat, noise, air quality, waterlogging or limited green space? |
| | * How can environmental quality be compared between scenarios? |
| | * Which spatial measures improve health-related indicators? |
| | * How can results support policy, planning or stakeholder dialogue? |
|
| |
|
| During model setup, the [[Water Overlay Wizard]] can be used as an initial technical validation step. It provides feedback on the configured water system, imported data and settings. Warnings and errors should be reviewed before interpreting model results.
| | Relevant Tygron components may include: |
|
| |
|
| Use this check for:
| | * [[Livability]] |
| | * [[Indicator]] |
| | * [[Combo Overlay]] |
| | * [[Attribute Overlay]] |
| | * [[Buildings]] |
| | * [[Areas]] |
| | * [[Neighborhoods]] |
| | * [[Measures]] |
| | * [[Scenario]] |
| | * [[Heat Overlay]] |
| | * [[Rainfall Overlay]] |
|
| |
|
| * missing or inconsistent water-system data;
| | Useful How-to routes may include importing vulnerable-object datasets, using attributes, combining overlays, building indicators, comparing measures and exporting statistics. |
| * incorrectly configured water areas;
| |
| * warnings in imported data;
| |
| * incomplete sewer or hydraulic structure configuration;
| |
| * settings that may prevent the water system from functioning as intended.
| |
|
| |
|
| Relevant implementation links:
| | == Accessibility == |
|
| |
|
| * [[Water Overlay Wizard]] | | * [[Application guide Accessibility and critical routes|Application guide: Accessibility and critical routes]] ''(planned)'' |
| * [[Configuration Wizard]]
| |
| * [[How to manually configure a Water Overlay]]
| |
| * [[Basic water model use case (Water Overlay)]]
| |
| * [[How to configure the Water Overlays]]
| |
|
| |
|
| This is a configuration check, not a full validation of model results.
| | Use this guide when the main question is about accessibility, road usability, critical routes or the effect of environmental conditions on movement through an area. |
|
| |
|
| === Validation with tracing and measurements ===
| | Typical user questions include: |
|
| |
|
| Tracing and measurements can be used to inspect model behaviour after running a [[Water Overlay]]. These workflows help users understand where water flows, which objects influence the result and whether calculated object values are plausible.
| | * Can Tygron analyse accessibility during flooding or waterlogging? |
| | * Which roads become difficult or unsafe to use? |
| | * Which critical routes are affected by water, heat or other conditions? |
| | * Are vulnerable locations still reachable? |
| | * How do current and future scenarios affect accessibility? |
| | * Which measures improve accessibility or reduce disruption? |
|
| |
|
| Use this check for:
| | Relevant Tygron components may include: |
|
| |
|
| * tracing water through the project area; | | * [[Roads]] |
| * checking whether flow paths are plausible; | | * [[Buildings]] |
| * inspecting water levels, discharge or other output attributes for hydraulic structures; | | * [[Areas]] |
| * exporting measurement results for review or reporting. | | * [[Attribute Overlay]] |
| | * [[Combo Overlay]] |
| | * [[Travel Distance Overlay]] |
| | * [[Distance Overlay]] |
| | * [[Rainfall Overlay]] |
| | * [[Water stress result type (Water Overlay)]] |
| | * [[Measure]] |
| | * [[Scenario]] |
|
| |
|
| Relevant implementation links:
| | Useful How-to routes may include Travel Distance Overlay configuration, evacuation routes, blocked roads, destination areas, water-depth thresholds, Combo Overlay formulas and scenario comparison. |
|
| |
|
| * [[How to trace water through project area (Water Overlay)]]
| | == Recommended structure for individual Application Guides == |
| * [[How to inspect object output attributes of an overlay using the measurement tool]]
| |
| * [[How to export measurements]]
| |
| * [[Water Overlay]]
| |
| * [[Water level area (Water Overlay)]]
| |
|
| |
|
| === Validation with the Hydrologic System Overview ===
| | Each individual Application Guide should follow a similar structure. This helps large language models compare guides, identify the relevant section and answer user questions consistently. |
|
| |
|
| The Hydrologic System Overview plugin can be used as an additional validation and plausibility workflow after running the [[Water Overlay]]. It installs a dashboard for analysing Water Overlay results and creates a dashboard instance for each Water Level Area identified by the Water Overlay.
| | A complete Application Guide should preferably include: |
|
| |
|
| For a water stress test, this is useful when the user wants to understand whether the hydrological behaviour of the model is plausible at water-system level, not only at map level.
| | * Purpose |
| | * Target audience |
| | * When to use Tygron |
| | * Suitable use cases |
| | * Less suitable use cases |
| | * Required data |
| | * Assumptions and choices |
| | * Workflow |
| | * Practical How-to routes |
| | * Expected outputs |
| | * Validation |
| | * Reusable concepts |
| | * Relevant Tygron components |
| | * Comparison with other software |
| | * Frequently asked questions |
| | * AI summary |
| | * Related guides |
| | * Search terms |
| | * Key terms |
|
| |
|
| Use the Hydrologic System Overview to check:
| | == Guidance for AI and search engines == |
|
| |
|
| * whether water level areas behave as expected;
| | These Application Guides are intended to make it easier for search engines and large language models to connect real-world questions to Tygron workflows. |
| * whether inflow and outflow patterns are plausible;
| |
| * whether water is stored, routed or discharged in a logical way;
| |
| * whether hydraulic structures strongly influence the result;
| |
| * whether the model behaviour explains surprising water-depth patterns;
| |
| * whether a result should be trusted, refined or investigated further.
| |
|
| |
|
| Recommended implementation links:
| | For that reason, each guide should use clear natural-language questions, such as: |
|
| |
|
| * [[How to add the Hydrologic System Overview plugin]] | | * Can Tygron be used for a water stress test? |
| * [[Dashboard]] | | * How do I analyse waterlogging in Tygron? |
| * [[Water level area (Water Overlay)]] | | * What data do I need for a heat stress analysis? |
| * [[Water Overlay]] | | * Can Tygron compare climate adaptation measures? |
| | * How do I calculate affected buildings? |
| | * How do I analyse accessibility during flooding? |
| | * How do I export results to GIS? |
| | * When should specialist software be used instead of Tygron? |
|
| |
|
| The Hydrologic System Overview should not replace expert judgement, field validation or comparison with measurements, but it can help users understand the internal hydrological behaviour behind the map output.
| | Each guide should explicitly connect: |
|
| |
|
| == Reusable concepts ==
| | * user intent; |
| | * required data; |
| | * assumptions; |
| | * thresholds; |
| | * Tygron components; |
| | * workflow steps; |
| | * How-to pages; |
| | * expected outputs; |
| | * validation checks; |
| | * limitations. |
|
| |
|
| Reusable concepts for this theme include:
| | This helps prevent answers that only mention a single feature without explaining how that feature fits into a complete analysis workflow. |
|
| |
|
| * Why use scenarios?
| | == Related technical pages == |
| * Why use templates?
| |
| * Why start with a clear policy question?
| |
| * Why separate theme, analysis, data, assumptions and workflow?
| |
| * Why validate before communicating results?
| |
| * Why compare current and future situations?
| |
| * Why define water-depth thresholds?
| |
| * Why combine water-depth maps with buildings, roads and vulnerable objects?
| |
| * Why distinguish exploratory analysis from design-level modelling?
| |
| * How can model results be translated into policy choices?
| |
|
| |
|
| Useful reference links: | | Useful starting points for technical documentation include: |
| | |
| * [[Scenario]]
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| * [[Measure]]
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| * [[Measures tutorial]]
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| * [[How to add and remove measures]]
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| * [[How to add an Area to a Measure]]
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| * [[How to add a Terrain Spatial to a Measure]]
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| * [[How to edit a Measure with QGIS]]
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| * [[Combo Overlay]]
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| * [[Indicator]]
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| * [[Water stress (Indicator)]]
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| * [[Geo Plugins tutorial]]
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| * [[Data preparation]]
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| == Relevant Tygron components ==
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| Relevant Tygron components include:
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|
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| * [[Water Module]] | | * [[Water Module]] |
| * [[Rainfall Overlay]] | | * [[Rainfall Overlay]] |
| | * [[Flooding Overlay]] |
| * [[Water Overlay]] | | * [[Water Overlay]] |
| * [[Water Overlay Wizard]] | | * [[Water Overlay Wizard]] |
| * [[Water stress (Indicator)]] | | * [[Watershed Module]] |
| | * [[Watershed Overlay]] |
| | * [[Heat Overlay]] |
| | * [[Travel Distance Overlay]] |
| * [[Combo Overlay]] | | * [[Combo Overlay]] |
| * Result child overlays
| | * [[Attribute Overlay]] |
| * [[Water area (Water Overlay)]] | |
| * [[Sewer area (Water Overlay)]]
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| * [[Sewer overflow (Water Overlay)]]
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| * [[Sewer model (Water Overlay)]]
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| * [[Culvert (Water Overlay)]]
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| * [[Weir (Water Overlay)]]
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| * Pumps and inlets
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| * Infiltration
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| * [[Ground water (Water Overlay)]]
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| * Hydrologic System Overview plugin
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| * TQL
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| * API
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| * [[GeoTIFF Overlay]] | | * [[GeoTIFF Overlay]] |
| * [[Attribute Overlay]] | | * [[Measures]] |
| * [[Scenario]] | | * [[Scenario]] |
| * [[Measure]]
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| * [[Future Design]] | | * [[Future Design]] |
| | | * [[Import Geo data]] |
| == Comparison with other software ==
| | * [[Export Geo data]] |
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| Tygron is strong for:
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| * spatial scenario exploration;
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| * visualisation of waterlogging;
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| * combining water results with spatial objects;
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| * measure comparison;
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| * stakeholder communication;
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| * risk dialogue preparation;
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| * fast iteration between current and future situations;
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| * integration of water results with buildings, roads and other spatial datasets. | |
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| Specialist tools may be more suitable for:
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| * detailed sewer design;
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| * formal hydraulic calibration;
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| * highly detailed 1D/2D sewer and surface-water interaction;
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| * detailed groundwater modelling;
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| * regulatory design verification;
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| * operational flood forecasting.
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| A practical way to position Tygron:
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| * Use Tygron when the main goal is spatial insight, scenario comparison and communication.
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| * Use specialist modelling software when the main goal is formal design, calibration or regulatory verification.
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| * Use both when quick spatial insight must be checked or refined with specialist modelling.
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| Useful background links:
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| * [[Water Module]]
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| * [[Water Overlay]]
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| * [[Water Overlay ground model cheatsheet]]
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| * [[Ground water (Water Overlay)]]
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| * [[Basic water model use case (Water Overlay)]]
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| == Frequently asked questions ==
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| === Can Tygron be used for a water stress test? ===
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| Yes. Tygron can be used to analyse waterlogging caused by extreme rainfall, especially when the goal is spatial insight, scenario comparison and communication. See the [[Rainfall Overlay]], [[Rainfall Overlay tutorial]], [[How to work with the Demo Rainfall Project]] and [[How to manually configure a Water Overlay]].
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| === Which overlay should be used? ===
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| The [[Rainfall Overlay]] is the main overlay for extreme rainfall and waterlogging. It is a [[Water Overlay]] connected to the [[Water Module]]. The broader configuration can be supported by the [[Water Overlay Wizard]], [[How to configure the Water Overlays]] and [[Basic water model use case (Water Overlay)]].
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| === What data is needed? ===
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| The most important data are elevation, land use, buildings, roads, water areas, sewer areas, hydraulic structures, infiltration assumptions and validation data. Local data can be imported using [[Import Geo data]], [[Geo Data Wizard]], [[How to import a GeoPackage file]], [[How to import data from a WFS]] or [[How to import data from ArcGIS Online]]. See also [[How to work with the Demo Rainfall Project]].
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| === How can I use a custom rainfall event? ===
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| A custom rainfall event can be configured using Weather data and simulation time settings. Relevant pages are [[How to load in dynamic rain and simulation time (Water Overlay)]], [[How to create a Rain area]], [[Rain area (Water Overlay)]] and [[Limit rain (Water Overlay)]].
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| === Can Tygron calculate impacted buildings? ===
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| Yes. Water-depth results can be combined with building geometry and building attributes to analyse affected buildings. Relevant links are [[Water stress (Indicator)]], [[Combo Overlay]], [[Combo Overlay tutorial]], [[How to edit a Combo Overlay formula]] and [[How to use building attributes in a Combo Overlay]].
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| === Can Tygron calculate road accessibility? ===
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| Tygron can support road accessibility analysis by combining water-depth results with road data and threshold assumptions. The threshold should depend on the intended interpretation, such as pedestrians, passenger cars or emergency vehicles. Relevant pages include [[Combo Overlay tutorial]], [[Combo Overlay with masking]], [[Combo Overlay with distance filtering]] and [[How to edit a Combo Overlay formula]].
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| === Can Tygron compare measures? ===
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| Yes. [[Measure|Measures]] and future designs can be compared by running scenarios and comparing water-depth maps, indicators and impact statistics. See [[Scenario]], [[Measure]], [[Future Design]], [[Measures tutorial]], [[How to add and remove measures]], [[How to add an Area to a Measure]], [[How to add a Terrain Spatial to a Measure]] and [[How to edit a Measure with QGIS]].
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| === Can Tygron export results to GIS? ===
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| Yes. Water results can be exported for use in GIS workflows, reports or web viewers. See [[GeoTIFF Overlay]], [[How to export a Grid Overlay as GeoTIFF]], [[How to export a Grid Overlay as GeoJSON]], [[How to export a Grid Overlay to the GeoShare]] and [[Export Geo data]].
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| === How reliable are the results? ===
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| Reliability depends on the elevation model, rainfall event, grid size, infiltration assumptions, sewer assumptions, water-system data and validation. Results should be checked with local knowledge, known problem locations and, where possible, measurements. Relevant pages include [[Water Overlay Wizard]], [[Configuration Wizard]], [[How to trace water through project area (Water Overlay)]], [[How to inspect object output attributes of an overlay using the measurement tool]], [[How to export measurements]] and [[How to add the Hydrologic System Overview plugin]].
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| === Can Tygron replace specialist hydraulic or sewer software? ===
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| Not as a general statement. Tygron is best positioned as a spatial, scenario-based analysis and communication tool. Specialist software may still be required for detailed design, calibration or regulatory verification.
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| === Where does the Hydrologic System Overview fit? ===
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| The Hydrologic System Overview plugin fits under validation and plausibility checking. It helps users understand the hydrological behaviour behind Water Overlay results, especially per Water Level Area. See [[How to add the Hydrologic System Overview plugin]], [[Dashboard]], [[Water level area (Water Overlay)]] and [[Water Overlay]].
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| == AI summary ==
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| Tygron can support water stress testing by helping users analyse spatial vulnerabilities caused by extreme rainfall, compare current and future scenarios, assess affected buildings and roads, and prepare results for decision making or stakeholder dialogue. The [[Rainfall Overlay]] and [[Water Module]] are the core components for calculating rainfall-driven waterlogging. The [[Water stress (Indicator)]] can translate water-depth results into a more policy-oriented assessment of built-area resilience.
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| A good workflow starts with a clear policy question, a defined study area, a chosen rainfall event, required data and explicit assumptions. Users can start from the [[Demo Rainfall Project]] and [[How to work with the Demo Rainfall Project]], configure rainfall using [[How to load in dynamic rain and simulation time (Water Overlay)]] or [[How to create a Rain area]], add local data using [[Import Geo data]] and [[Geo Data Wizard]], include sewer behaviour using [[How to add sewer data (Water Overlay)]] and [[How to import sewer overflows]], calculate impact using [[Combo Overlay tutorial]] and [[How to use building attributes in a Combo Overlay]], compare measures using [[Measures tutorial]], and export results using [[How to export a Grid Overlay as GeoTIFF]] or [[How to export a Grid Overlay as GeoJSON]].
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| Results should be validated using known problem locations, expert judgement, configuration checks, tracing, measurements and, where useful, the Hydrologic System Overview plugin. Tygron is strongest for spatial insight, scenario comparison and communication. Specialist hydraulic, sewer or groundwater software may still be needed for detailed calibration, design or formal verification.
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| == Related guides ==
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| Related application guides may include:
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| * Rural Water: Flow Paths
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| * Flooding: Rapid Flood Impact Analysis
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| * Rural Water: Water System Analysis and Water Balance
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| * Groundwater and Drought
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| * Rainwater Retention
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| * Sewer Interaction and Surface Waterlogging
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| * Climate Adaptation Measures for Water
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| * Water Model Setup with HyDAMO
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| * Calibration and Validation of Water Models
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| * Hydraulic Structures and Network Connectivity
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| Useful related Tygron links:
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| * [[How to configure the Water Overlays]]
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| * [[Groundwater Overlay]]
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| * [[Water balance (Water Overlay)]]
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| * [[How to add the Hydrologic System Overview plugin]]
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|
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|
| == Search terms == | | == Search terms == |
| Line 999: |
Line 337: |
| This page may be relevant for users searching for: | | This page may be relevant for users searching for: |
|
| |
|
| * Can Tygron be used for a water stress test? | | * Tygron application guides |
| * How do I analyse waterlogging in Tygron? | | * Tygron use cases |
| * How do I configure a Rainfall Overlay? | | * Tygron workflows |
| * What data do I need for extreme rainfall analysis? | | * Tygron climate adaptation |
| * Can Tygron calculate water depth during heavy rainfall? | | * Tygron water stress test |
| * Can Tygron compare adaptation measures? | | * Tygron extreme rainfall |
| * Can Tygron calculate impacted buildings? | | * Tygron waterlogging |
| * Can Tygron calculate road accessibility during extreme rainfall? | | * Tygron flooding |
| * Can Tygron export water-depth maps to GIS? | | * Tygron flood impact analysis |
| * How do I validate a rainfall model in Tygron? | | * Tygron flow paths |
| * Can Tygron replace hydraulic modelling software? | | * Tygron surface runoff |
| * How do I include sewer storage in a Tygron rainfall model? | | * Tygron watershed |
| * How do I import sewer overflows in Tygron? | | * Tygron heat stress |
| * How do I use a custom rainfall event in Tygron? | | * Tygron health |
| * How do I use a Rain area in Tygron? | | * Tygron environmental quality |
| * How do I combine rainfall results with buildings or roads? | | * Tygron accessibility |
| * How do I use a Combo Overlay for water stress? | | * Tygron critical routes |
| * How do I export rainfall results as GeoTIFF? | | * Tygron measures |
| * How do I compare measures for waterlogging? | | * Tygron scenario comparison |
| | * Tygron GIS export |
| | * Tygron How-to workflows |
|
| |
|
| == Key terms == | | == Key terms == |
|
| |
|
| * water stress test | | * application guide |
| | * use case |
| | * workflow |
| | * climate adaptation |
| | * water |
| * extreme rainfall | | * extreme rainfall |
| * waterlogging | | * waterlogging |
| * pluvial flooding | | * pluvial flooding |
| | * flooding |
| | * flood impact |
| | * flow paths |
| * surface runoff | | * surface runoff |
| * water depth | | * watershed |
| * maximum water depth | | * heat stress |
| * vulnerable buildings | | * health |
| * vulnerable objects | | * environmental quality |
| * road accessibility | | * accessibility |
| * sewer storage | | * critical routes |
| * sewer overflow | | * scenario comparison |
| * sewer area
| | * measures |
| * infiltration
| | * validation |
| * surface water
| | * GIS export |
| * water level area
| | * [[Water Module]] |
| * rainfall event
| |
| * dynamic rainfall
| |
| * rain area
| |
| * climate adaptation | |
| * measure comparison | |
| * future design | |
| * risk dialogue | |
| * [[Rainfall Overlay]] | | * [[Rainfall Overlay]] |
| | * [[Flooding Overlay]] |
| * [[Water Overlay]] | | * [[Water Overlay]] |
| * [[Water Module]] | | * [[Watershed Overlay]] |
| * [[Water stress (Indicator)]] | | * [[Heat Overlay]] |
| | * [[Travel Distance Overlay]] |
| * [[Combo Overlay]] | | * [[Combo Overlay]] |
| * [[Attribute Overlay]] | | * [[Attribute Overlay]] |
| * Hydrologic System Overview
| |
| * [[GeoTIFF Overlay]] | | * [[GeoTIFF Overlay]] |
| * TQL | | * [[Measure]] |
| * API | | * [[Scenario]] |
| | * [[Future Design]] |
|
| |
|
| [[Category:Application guides]] | | [[Category:Application guides]] |
| [[Category:Water Module]]
| |
| [[Category:Rainfall]]
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| [[Category:Climate adaptation]]
| |