Heat Stress Overlay Wizard: Difference between revisions

From Tygron Support wiki
Jump to navigation Jump to search
← Older edit
Maxim@tygron.com (talk | contribs)
Tygron, Tygron_admin, Bureaucrats, Interface administrators, Administrators
6,569 edits
No edit summary
 
Line 16: Line 16:
For each day, and for each time of day, the following will be automatically generated when using the wizard:
For each day, and for each time of day, the following will be automatically generated when using the wizard:
# The wizard uses the date, time, and project location to calculate sun altitude and azimuth angles.
# The wizard uses the date, time, and project location to calculate sun altitude and azimuth angles.
# The [[Sun_daily_motion_(Heat Stress Overlay)|sun daily motion factor]] is a parameter used in the atmospheric temperature formula. It will be automatically selected from the [[Sun_motion_table_(Heat Stress Overlay)|sun motion table]], based on the sunrise/sunset period for that date (column) and the hour in UTC (row).
# The [[Sun_daily_motion_(Heat Stress Overlay)|sun daily motion factor]] is a parameter used in the atmospheric temperature formula. It will be automatically selected from the [[Sun_motion_table_(Heat Stress Overlay)|sun motion table]], based on the sunrise/sunset period for that date (column) and the hour (row).


====Weather station data====
====Weather station data====

Latest revision as of 07:33, 15 October 2026

How to set up the Heat Stress Overlay Wizard

Generally, the steps required to use and configure the Heat Stress Overlay are as follows:

  1. Determine the location and area of interest and generate a project for that area;
  2. Add the Heat Stress Overlay;
  3. Open the Heat Stress Overlay wizard to kick off the configuration process.
    1. Select date(s) and time of day
    2. Supply daily weather station data
    3. Supply hourly weather station data
    4. Select source for Foliage height

Date and time of day

  1. Select a day for which you want to generate results. You can also choose to select multiple consecutive days when using the Heat Stress Overlay Wizard.
  2. For each day, select the hours for which you want to generate results. Each day-hour combination will become a result. This result is stored as a time-frame to relate it back to the day and time.

Generated sun parameters

For each day, and for each time of day, the following will be automatically generated when using the wizard:

  1. The wizard uses the date, time, and project location to calculate sun altitude and azimuth angles.
  2. The sun daily motion factor is a parameter used in the atmospheric temperature formula. It will be automatically selected from the sun motion table, based on the sunrise/sunset period for that date (column) and the hour (row).

Weather station data

Next, manually determine which weather station you want to use as a reference. Download the historical hourly weather data for that station and use the data from certain columns as input. In a nutshell, using the weather data, you have to supply:

  • Daily Values
  1. The minimum and maximum temperature of the day;
  2. The average wind speed, measured at the height of 10 meters;
  3. The average global sun radiation during sun hours;
  • Hourly Values
  1. The hourly humidity;
  2. The hourly sun radiation, as an average of the current and previous hour;
  3. The hourly temperature;
  4. The hourly wind speed;
  5. The hourly wind direction;

More information on importing weather data:

Foliage Height

Select what source will define the Foliage height:

  • Buildings with functions related to foliage. The foliage height calculation model will determine the foliage height using the height of the vegetation (as buildings) and the foliage crown factor attribute;
  • Areas with a foliage height attribute, defining the foliage height for a whole area;
  • GeoTIFF, defining a foliage height value for each cell in its raster.

More information on how to define Foliage height:

Further reading

To read more documentation about the Heat Stress Overlay go to DPRA Heat Stress Module

Heat Stress Module
Heat Stress Module
Tutorials
Overview
Theory
Benchmarks
Group
Model attributes
Daily average radiation • Daily average wind speed • Daily maximum temperature • Daily minimum temperature • Dates • Exclude buildings • Exclude water • Exclude foliage height m • Foliage areas • Hourly humidity • Hourly radiation • Hourly temperature • Max shadow distance • Max trunk distance • Sun altitude • Sun azimuth • Sun daily motion • Wind direction • Wind speed • Wind decline angle
Group
Building attributes
Bowen ratio • Floor height m • Foliage crown factor • Vegetation fraction
Terrain attributes
Bowen ratio •  Vegetation fraction
Area attributes
Foliage height
Group
Prequels
Building elevation • Foliage height • Terrain elevation
Related
Calculation models and formulas • Feature attributes • Model attributes • Result types


Retrieved from "https://support.tygron.com/w/index.php?title=Heat_Stress_Overlay_Wizard&oldid=95916"