Result types (Heat Overlay)
The DPRA Heat Module of the Heat Overlay performs complex calculations and can generate multiple types of results per timeframe. A timeframe in the Heat Overlay corresponds to a date and time for which a result will be calculated. This date and time will be relative to the project's time zone.
List of Result Types
| Icon | Result type | Unit | Display mode | Description |
|---|---|---|---|---|
 |
BOWEN_RATIO | ratio | Date-Time | The Bowen ratio of buildings and terrains. Is used to describe the type of heat transfer for a surface that has moisture. |
 |
FOLIAGE | m | Start | The initial and optional calculated foliage height, depending on the source of the foliage height. |
 |
PET | °C | Date-Time | The calculated physiological equivalent temperature. |
|
PET_RELATIVE | °C | Date-Time | The calculated physiological equivalent temperature, relative to the calculated atmospheric temperature. |
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SHADE | boolean | Date-Time | Indicates whether a cell is in the shade or not based on sun ray calculations. |
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SKY_VIEW | fraction | Start | The calculated sky view factor. |
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SKY_VIEW_AVG | fraction | Start | The calculated average of individual calculated sky view factors. |
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TEMPERATURE_ATMOSPHERE | °C | Date-Time | The calculated atmospheric temperature, based on the urban heat island, sun motion factor and the measured temperature. |
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UHI | °C | Date-Time | The calculated urban heat island effect. |
 |
VEGETATION | fraction | Date-Time | The fraction of vegetation per square meter. |
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VEGETATION_AVG | fraction | Date-Time | The calculated average vegetation based on the cells' individual vegetation fraction. |
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WIND_SPEED | m/s | Date-Time | The wind speed calculated for the height of 1.2 meters above ground. |
Result types can differ in the kind of data they display and in what way that data is recorded. A result type can be monitoring the data in one of the following ways:
- Start: The data is determined at the start of the simulation, and does not change over the course of multiple time steps.
- Date-Time: The data is dependent on the timestep, which corresponds to a date and time.
Average result
When the AVERAGED_LAST_RESULT attribute is used, an additional timeframe will be added to the results containing the averaged results of all preceding timeframes.
- Group
- Result types
- Atmospheric temperature • Bowen ratio • Foliage • Physiological equivalent temperature (PET) • Relative PET • Shade • Sky view • Sky view average • Urban heat island • Vegetation • Vegetation average • Wind speed
- Related