Model attributes (Heat Overlay): Difference between revisions
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| Wm<sup>-2</sup> / hr | | Wm<sup>-2</sup> / hr | ||
| The amount of Sun radiation this hour, measured at a [[Weather station (Heat Overlay)|weather station]]. | | The amount of Sun radiation this hour, measured at a [[Weather station (Heat Overlay)|weather station]]. | ||
|- | |- | ||
| [[Hourly temperature (Heat Overlay)|HOURLY_TEMPERATURE]] | | [[Hourly temperature (Heat Overlay)|HOURLY_TEMPERATURE]] | ||
| °C | | °C | ||
| The temperature at this hour, measured at a [[Weather station (Heat Overlay)|weather station]]. | | The temperature at this hour, measured at a [[Weather station (Heat Overlay)|weather station]]. | ||
|- | |- | ||
| [[ Sun_altitude_(Heat_Overlay)|SUN_ALTITUDE]] | | [[ Sun_altitude_(Heat_Overlay)|SUN_ALTITUDE]] | ||
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| [[Geo angle]] | | [[Geo angle]] | ||
| The angle along the horizon, with 0° corresponding to north, and increasing in a clockwise fashion | | The angle along the horizon, with 0° corresponding to north, and increasing in a clockwise fashion | ||
|- | |||
| [[Sun_daily_motion_(Heat_Overlay)|SUN_DAILY_MOTION]] | |||
| factor | |||
| A factor used in calculating the Atmospheric Temperature from the calculated Urban Heat Island value. | |||
|- | |||
| [[Wind direction (Heat Overlay)|WIND_DIRECTION]] | |||
| [[Geo angle]] | |||
| The wind direction viewed from above, with 0° corresponding to north, and increasing in a clockwise fashion. | |||
|- | |||
| [[Wind speed (Heat Overlay)|WIND_SPEED]] | |||
| m/s | |||
| The wind speed measured at a [[Weather station (Heat Overlay)|weather station]] at the height of 10 meters above ground. | |||
|- | |||
|} | |} | ||
Revision as of 10:09, 17 December 2019
The heat overlay's model calculations depend on a number of calculation-wide parameters. These parameters are available as attributes of the heat overlay and can be modified as such.
Attribute | Unit | Description |
---|---|---|
AVERAGED_LAST_RESULT | boolean | Whether to ignore the date-time setting for the last calculated timeframe, and show an average of the results of all preceding timeframes instead. |
DAILY_AVG_RADIATION | Wm-2 / hr | The average of amount of sun radiation per hour per square meter for this day, measured at a weather station. |
DAILY_AVG_WIND_SPEED | m/s | The daily average wind speed measured at a weather station at the height of 10 meters above ground. |
DAILY_TEMPERATURE_MAX | °C | Maximum temperature measured at a weather station. |
DAILY_TEMPERATURE_MIN | °C | Minimum temperature measured at a weather station. |
DATES | timestamp | Dates define the amount of timeframes and are used to define the day and time for calculating sun angles. |
EXCLUDE_BUILDINGS | boolean | |
EXCLUDE_WATER | boolean | |
FOLIAGE_AREAS | boolean | |
HOURLY_HUMIDITY | percentage | The relative humidity of the air at this hour, measured at a weather station. |
HOURLY_RADIATION | Wm-2 / hr | The amount of Sun radiation this hour, measured at a weather station. |
HOURLY_TEMPERATURE | °C | The temperature at this hour, measured at a weather station. |
SUN_ALTITUDE | ° | The sun angle up from the horizon. |
SUN_AZIMUTH | Geo angle | The angle along the horizon, with 0° corresponding to north, and increasing in a clockwise fashion |
SUN_DAILY_MOTION | factor | A factor used in calculating the Atmospheric Temperature from the calculated Urban Heat Island value. |
WIND_DIRECTION | Geo angle | The wind direction viewed from above, with 0° corresponding to north, and increasing in a clockwise fashion. |
WIND_SPEED | m/s | The wind speed measured at a weather station at the height of 10 meters above ground. |
Notes
- The sun altitude and azimuth are calculated automatically based on the project world location and the date.
- Some model attributes have to be based on a reference weather station.