Result type (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
|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||fraction||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.|
|SHADE||boolean||Date-Time||Indicates whether a cell is in the shade or not based on sun ray calculations.|
|SKY_VIEW||fraction||Start||The calculated sky view factor.|
|SKY_VIEW_AVG||fraction||Start||The calculated average of individual calculated sky view factors.|
|TEMPERATURE_ATMOSPHERE||°C||Date-Time||The calculated atmospheric temperature, based on the calculated urban heat island, sun motion factor and the measured temperature.|
|UHI||°C||Date-Time||The calculated urban heat island effect.|
|VEGETATION||fraction||Date-Time||The fraction of vegetation per square meter.|
|VEGETATION_AVG||fraction||Date-Time||The calculated average vegetation based on the cells' individual vegetation fraction.|
|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.
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.