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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 users translate policy questions, planning questions or analysis questions into 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. Instead, they connect user questions, required data, assumptions, workflows, relevant Tygron components and implementation pages. |
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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]].
| | Each guide should help answer: |
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| == Purpose ==
| | * what user question the application addresses; |
| | * when Tygron is suitable; |
| | * when Tygron is less suitable; |
| | * what data is needed; |
| | * which assumptions must be documented; |
| | * which Tygron components are relevant; |
| | * which workflows and How-to pages should be used; |
| | * what outputs can be expected; |
| | * how results should be validated; |
| | * which related guides or technical pages may be relevant. |
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| The purpose of this guide is to support users who want to answer the following question:
| | == How to use these guides == |
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| : ''Where does waterlogging occur during extreme rainfall, and which areas, objects or routes are vulnerable?''
| | Use an Application Guide when the starting point is a real-world problem or policy question, rather than a single Tygron feature. |
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| Typical follow-up questions are:
| | For example: |
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| * Which streets or neighbourhoods are most vulnerable to waterlogging? | | * use an Application Guide to understand how Tygron can support a water stress test, heat stress analysis or accessibility assessment; |
| * Which buildings are affected at a chosen water-depth threshold?
| | * use technical documentation to understand the details of a specific overlay, component, attribute or setting; |
| * Which roads become difficult or unsafe to use? | | * use How-to pages when the user needs step-by-step instructions for a specific task. |
| * 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? | |
| * 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 ==
| | The Application Guides are intended to bridge these three levels: |
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| This guide is intended for:
| | # the real-world question; |
| | # the Tygron analysis workflow; |
| | # the relevant technical documentation and How-to pages. |
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| * policy officers for climate adaptation;
| | == Themes == |
| * 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 ==
| | 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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| 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.
| | == Water == |
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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 Water theme contains applications related to rainfall, flooding, surface water, flow paths, sewer interaction, groundwater and water-system behaviour. |
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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.
| | === Extreme rainfall === |
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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 guide: Water stress test for extreme rainfall]] |
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| == Suitable use cases ==
| | Use this guide when the main question is about waterlogging caused by intense rainfall in urban areas. Typical questions include: |
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| Tygron fits well when the question is about:
| | * Where does water accumulate during extreme rainfall? |
| | * Which buildings, roads or vulnerable functions are affected? |
| | * How can water-depth maps be translated into impact? |
| | * Which measures reduce waterlogging? |
| | * How can results be prepared for a risk dialogue? |
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| * spatial analysis of waterlogging;
| | Relevant Tygron components may include: |
| * 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.
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| == Less suitable use cases ==
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| Tygron is less suitable when the question mainly concerns: | |
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| * detailed sewer design;
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| * 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.
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| == Required data ==
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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.
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| === Elevation model ===
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| * Preferred source: AHN or preferably a higher-resolution local elevation model.
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| * Why it matters: Determines flow direction, local ponding and water depth.
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| * If missing: Use the available terrain model and state reduced confidence.
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| * Tygron component or term: Elevation GeoTIFF.
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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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| ** [[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)]].
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| * 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.
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| * 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)]]
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| ** [[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]]
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| ** [[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]]
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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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| ** [[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;
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| * 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:
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| * [[Rainfall Overlay]] | | * [[Rainfall Overlay]] |
| * [[Rainfall Overlay tutorial]] | | * [[Water Overlay]] |
| * [[Water Overlay Wizard]]
| | * [[Water Module]] |
| * [[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]] | | * [[Water Overlay Wizard]] |
| * [[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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|
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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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|
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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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|
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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)]]
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| * [[Combo Overlay]]
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| * [[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]]
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|
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| === Result-processing workflow: combine multiple calculations into one result ===
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| Use this workflow when results from several overlays, scenarios, areas or timeframes must be combined.
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| Examples:
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| * combining multiple limited-area calculations;
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| * accumulating results across timeframes;
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| * combining water depth with building vulnerability;
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| * preparing one output map for reporting;
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| * creating a reusable result layer for a template.
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| Relevant implementation links:
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| * [[How to combine multiple calculations into a single result]]
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| * [[How to combine results of multiple Overlays as timeframes in a Combo Overlay]]
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| * [[Combo Overlay]]
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| * [[Calculation panel]]
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| * [[Calculation Cloud]]
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|
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| === Advanced workflow: connect overlays using prequels ===
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| Use this workflow when the result of one overlay needs to be used as input for another overlay.
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| Examples:
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| * using a processed result as input for a [[Combo Overlay]];
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| * chaining rainfall results into a follow-up analysis;
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| * building reusable calculation chains for templates.
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|
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| Relevant implementation links:
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| * [[Combo Overlay]] | | * [[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)]]
| |
|
| |
| 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)]]
| |
| * [[How to trace water through project area (Water Overlay)]]
| |
|
| |
|
| These pages are especially relevant for questions such as:
| | === Flooding === |
|
| |
|
| * How do I add culverts or weirs to a Water Overlay? | | * [[Application guide: Flood impact analysis]] |
| * 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 ===
| | Use this guide when the main question is about the impact of flooding from a breach, external water level or flood event. Typical questions include: |
|
| |
|
| Use these pages when groundwater, drainage or initial groundwater conditions are relevant to the rainfall 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? |
|
| |
|
| * [[Ground water (Water Overlay)]]
| | Relevant Tygron components may 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:
| | * [[Flooding Overlay]] |
| | | * [[Water Overlay]] |
| * Should groundwater be included in a water stress test?
| | * [[Water Module]] |
| * How do I add a groundwater GeoTIFF?
| | * [[Breach (Water Overlay)]] |
| * How do I use default groundwater information?
| | * [[Breach input area (Water Overlay)]] |
| * How do I model drainage?
| | * [[Combo Overlay]] |
| * How do I define an initial groundwater situation?
| |
| | |
| === Analyse impact on buildings, roads or vulnerable functions ===
| |
| | |
| Use these pages when water-depth results must be translated into impact:
| |
| | |
| * [[Combo Overlay tutorial]] | |
| * [[How to edit a Combo Overlay formula]] | |
| * [[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]] |
|
| |
|
| These pages are especially relevant for questions such as:
| | === Surface runoff pathways === |
| | |
| * 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 === | |
|
| |
|
| Use these pages when results from multiple overlays, timeframes, scenarios or calculation areas need to be combined:
| | * [[Application guide: Flow paths and surface runoff]] |
|
| |
|
| * [[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. Typical questions include: |
| * [[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:
| | * Where does rainwater flow over the surface? |
| | * Which low points or barriers influence flow paths? |
| | * Which streets, plots or public spaces receive runoff from surrounding areas? |
| | * How can flow paths support climate adaptation design? |
| | * How can flow-path results be used to identify logical locations for measures? |
|
| |
|
| * How do I combine results from multiple rainfall calculations?
| | Relevant Tygron components may include: |
| * How do I combine different overlays into one result map?
| |
| * How do I process multiple timeframes?
| |
| * How do I create a reusable output layer?
| |
| * How can results from limited-area calculations be merged?
| |
|
| |
|
| === Compare measures and future scenarios ===
| | * [[Rainfall Overlay]] |
| | |
| Use these pages when the user wants to compare adaptation measures or future designs:
| |
| | |
| * [[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]] |
| | * [[Elevation model]] |
| | * [[Terrain]] |
| | * [[Combo Overlay]] |
| | * [[GeoTIFF Overlay]] |
|
| |
|
| These pages are especially relevant for questions such as:
| | == Heat == |
|
| |
|
| * How do I validate a rainfall model? | | * [[Application guide: Urban 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 ===
| | 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. Typical questions include: |
|
| |
|
| Use these pages when results need to be exported for further analysis, reporting or stakeholder communication:
| | * 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 to export a Grid Overlay as GeoTIFF]]
| | Relevant Tygron components may 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:
| | * [[Heat Overlay]] |
| | * [[Heat stress Overlay]] |
| | * [[Climate]] |
| | * [[Buildings]] |
| | * [[Terrain]] |
| | * [[Trees]] |
| | * [[Measures]] |
| | * [[Scenario]] |
| | * [[Combo Overlay]] |
|
| |
|
| * How do I export water-depth maps?
| | == Health == |
| * 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 ==
| | * [[Application guide: Health and environmental quality]] |
|
| |
|
| Expected outputs include:
| | Use this guide when the main question is about the relation between the physical environment and health, wellbeing or exposure. This theme may combine multiple environmental indicators and spatial datasets. Typical questions include: |
|
| |
|
| * water-depth maps; | | * Which neighbourhoods have a combination of environmental health risks? |
| * maximum water-depth maps; | | * Where do vulnerable groups coincide with heat, noise, air quality or limited green space? |
| * water stress indicator;
| | * How can environmental quality be compared between scenarios? |
| * vulnerability maps;
| | * Which spatial measures improve health-related indicators? |
| * impacted buildings;
| | * How can results support policy, planning or stakeholder dialogue? |
| * 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: | | Relevant Tygron components may include: |
|
| |
|
| * [[Water stress (Indicator)]] | | * [[Livability]] |
| * [[Water stress result type (Water Overlay)]] | | * [[Indicator]] |
| * [[Combo Overlay]] | | * [[Combo Overlay]] |
| * [[GeoTIFF Overlay]]
| |
| * [[Attribute Overlay]] | | * [[Attribute Overlay]] |
| * [[How to export a Grid Overlay as GeoTIFF]] | | * [[Buildings]] |
| * [[How to export a Grid Overlay as GeoJSON]] | | * [[Areas]] |
| * [[How to export a Grid Overlay to the GeoShare]] | | * [[Neighborhoods]] |
| * [[Export Geo data]] | | * [[Measures]] |
| * [[How to export objects in a Project to a GeoPackage]] | | * [[Scenario]] |
| * [[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.
| | == Accessibility == |
|
| |
|
| == Validation ==
| | * [[Application guide: Accessibility and critical routes]] |
|
| |
|
| Validation is essential before water stress test results are used for communication, decision making or measure selection.
| | 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. Typical questions include: |
|
| |
|
| Recommended validation checks:
| | * 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? |
|
| |
|
| * Check known problem locations.
| | Relevant Tygron components may 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 ===
| | * [[Roads]] |
| | | * [[Buildings]] |
| 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.
| | * [[Areas]] |
| | * [[Attribute Overlay]] |
| | * [[Combo Overlay]] |
| | * [[Rainfall Overlay]] |
| | * [[Water stress result type (Water Overlay)]] |
| | * [[Measure]] |
| | * [[Scenario]] |
|
| |
|
| Use this check for:
| | == Structure of an Application Guide == |
|
| |
|
| * missing or inconsistent water-system data;
| | Each Application Guide follows a similar structure. This helps users, search engines and large language models understand how a real-world question is connected to Tygron workflows, relevant components, How-to pages and expected outputs. |
| * 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:
| | A typical Application Guide includes: |
|
| |
|
| * [[Water Overlay Wizard]] | | * purpose and target audience; |
| * [[Configuration Wizard]] | | * suitable and less suitable use cases; |
| * [[How to manually configure a Water Overlay]] | | * required data; |
| * [[Basic water model use case (Water Overlay)]] | | * assumptions and choices; |
| * [[How to configure the Water Overlays]] | | * workflow steps; |
| | * practical How-to routes; |
| | * expected outputs; |
| | * validation checks; |
| | * relevant Tygron components; |
| | * frequently asked questions; |
| | * related guides, search terms and key terms. |
|
| |
|
| This is a configuration check, not a full validation of model results.
| | == Guidance for AI and search engines == |
|
| |
|
| === Validation with tracing and measurements ===
| | These Application Guides are intended to make it easier for users, search engines and large language models to connect real-world questions to Tygron workflows. |
|
| |
|
| 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.
| | For that reason, each guide should use clear natural-language questions, such as: |
|
| |
|
| Use this check for:
| | * Can Tygron be used for a water stress test? |
| | | * How do I analyse waterlogging in Tygron? |
| * tracing water through the project area;
| | * What data do I need for a heat stress analysis? |
| * checking whether flow paths are plausible;
| | * Can Tygron compare climate adaptation measures? |
| * inspecting water levels, discharge or other output attributes for hydraulic structures;
| | * How do I calculate affected buildings? |
| * exporting measurement results for review or reporting.
| | * How do I export results to GIS? |
| | | * When should specialist software be used instead of Tygron? |
| Relevant implementation links:
| |
| | |
| * [[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]]
| |
| * [[Water Overlay]]
| |
| * [[Water level area (Water Overlay)]] | |
| | |
| === Validation with the Hydrologic System Overview ===
| |
| | |
| 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.
| |
| | |
| 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.
| |
| | |
| Use the Hydrologic System Overview to check:
| |
| | |
| * whether water level areas behave as expected; | |
| * 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:
| |
| | |
| * [[How to add the Hydrologic System Overview plugin]] | |
| * [[Dashboard]]
| |
| * [[Water level area (Water Overlay)]]
| |
| * [[Water Overlay]] | |
| | |
| 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.
| |
| | |
| == Reusable concepts ==
| |
| | |
| Reusable concepts for this theme include:
| |
|
| |
|
| * Why use scenarios?
| | Each guide should also explicitly connect: |
| * 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:
| | * user intent; |
| | * required data; |
| | * assumptions; |
| | * Tygron components; |
| | * workflow steps; |
| | * How-to pages; |
| | * expected outputs; |
| | * validation checks. |
|
| |
|
| * [[Scenario]]
| | This helps prevent answers that only mention a single feature without explaining how that feature fits into a complete analysis workflow. |
| * [[Measure]]
| |
| * [[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]]
| |
| * [[Combo Overlay]]
| |
| * [[Indicator]]
| |
| * [[Water stress (Indicator)]]
| |
| * [[Geo Plugins tutorial]]
| |
| * [[Data preparation]]
| |
|
| |
|
| == Relevant Tygron components == | | == Related technical pages == |
|
| |
|
| Relevant Tygron components include:
| | Useful starting points for technical documentation include: |
|
| |
|
| * [[Water Module]] | | * [[Water Module]] |
| Line 862: |
Line 237: |
| * [[Water Overlay]] | | * [[Water Overlay]] |
| * [[Water Overlay Wizard]] | | * [[Water Overlay Wizard]] |
| * [[Water stress (Indicator)]]
| |
| * [[Combo Overlay]] | | * [[Combo Overlay]] |
| * Result child overlays
| | * [[Attribute Overlay]] |
| * [[Water area (Water Overlay)]] | |
| * [[Sewer area (Water Overlay)]]
| |
| * [[Sewer overflow (Water Overlay)]]
| |
| * [[Sewer model (Water Overlay)]]
| |
| * [[Culvert (Water Overlay)]]
| |
| * [[Weir (Water Overlay)]]
| |
| * Pumps and inlets
| |
| * Infiltration
| |
| * [[Ground water (Water Overlay)]]
| |
| * Hydrologic System Overview plugin
| |
| * TQL
| |
| * API
| |
| * [[GeoTIFF Overlay]] | | * [[GeoTIFF Overlay]] |
| * [[Attribute Overlay]] | | * [[Measures]] |
| * [[Scenario]] | | * [[Scenario]] |
| * [[Measure]]
| |
| * [[Future Design]] | | * [[Future Design]] |
| | | * [[Import Geo data]] |
| == Comparison with other software ==
| | * [[Export Geo data]] |
| | |
| Tygron is strong for:
| |
| | |
| * spatial scenario exploration;
| |
| * visualisation of waterlogging;
| |
| * combining water results with spatial objects;
| |
| * measure comparison;
| |
| * stakeholder communication;
| |
| * risk dialogue preparation;
| |
| * fast iteration between current and future situations;
| |
| * integration of water results with buildings, roads and other spatial datasets. | |
| | |
| Specialist tools may be more suitable for:
| |
| | |
| * detailed sewer design;
| |
| * formal hydraulic calibration;
| |
| * highly detailed 1D/2D sewer and surface-water interaction;
| |
| * detailed groundwater modelling;
| |
| * regulatory design verification;
| |
| * operational flood forecasting.
| |
| | |
| A practical way to position Tygron:
| |
| | |
| * Use Tygron when the main goal is spatial insight, scenario comparison and communication.
| |
| * Use specialist modelling software when the main goal is formal design, calibration or regulatory verification.
| |
| * Use both when quick spatial insight must be checked or refined with specialist modelling.
| |
| | |
| Useful background links:
| |
| | |
| * [[Water Module]]
| |
| * [[Water Overlay]]
| |
| * [[Water Overlay ground model cheatsheet]]
| |
| * [[Ground water (Water Overlay)]]
| |
| * [[Basic water model use case (Water Overlay)]]
| |
| | |
| == 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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| == Search terms == | | == Search terms == |
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| This page may be relevant for users searching for: | | This page may be relevant for users searching for: |
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| * 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 flooding |
| * Can Tygron calculate road accessibility during extreme rainfall? | | * Tygron flow paths |
| * Can Tygron export water-depth maps to GIS? | | * Tygron heat stress |
| * How do I validate a rainfall model in Tygron? | | * Tygron health |
| * Can Tygron replace hydraulic modelling software? | | * Tygron accessibility |
| * How do I include sewer storage in a Tygron rainfall model? | | * Tygron measures |
| * How do I import sewer overflows in Tygron? | | * Tygron scenario comparison |
| * How do I use a custom rainfall event in Tygron? | | * Tygron GIS export |
| * How do I use a Rain area in Tygron? | | * Tygron How-to workflows |
| * How do I combine rainfall results with buildings or roads? | |
| * How do I use a Combo Overlay for water stress?
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| * How do I export rainfall results as GeoTIFF?
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| * How do I compare measures for waterlogging? | |
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| == Key terms == | | == Key terms == |
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| * water stress test | | * application guide |
| | * use case |
| | * workflow |
| | * climate adaptation |
| | * water |
| * extreme rainfall | | * extreme rainfall |
| * waterlogging | | * waterlogging |
| * pluvial flooding | | * flooding |
| | * flow paths |
| * surface runoff | | * surface runoff |
| * water depth | | * heat stress |
| * maximum water depth | | * health |
| * vulnerable buildings | | * accessibility |
| * vulnerable objects
| | * critical routes |
| * road accessibility
| | * scenario comparison |
| * sewer storage | | * measures |
| * sewer overflow | | * validation |
| * sewer area
| | * GIS export |
| * infiltration
| | * [[Water Module]] |
| * surface water
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| * water level area
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| * rainfall event
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| * dynamic rainfall
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| * rain area | |
| * climate adaptation | |
| * measure comparison
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| * future design | |
| * risk dialogue | |
| * [[Rainfall Overlay]] | | * [[Rainfall Overlay]] |
| * [[Water Overlay]] | | * [[Water Overlay]] |
| * [[Water Module]]
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| * [[Water stress (Indicator)]]
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| * [[Combo Overlay]] | | * [[Combo Overlay]] |
| * [[Attribute Overlay]] | | * [[Attribute Overlay]] |
| * Hydrologic System Overview
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| * [[GeoTIFF Overlay]] | | * [[GeoTIFF Overlay]] |
| * TQL | | * [[Measure]] |
| * API | | * [[Scenario]] |
| | * [[Future Design]] |
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| [[Category:Application guides]] | | [[Category:Application guides]] |
| [[Category:Water Module]]
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| [[Category:Rainfall]]
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| [[Category:Climate adaptation]]
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