Model attributes (Heat Overlay): Difference between revisions

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| m/s
| m/s
| The wind speed measured at a weather station at the height of 10 meters above ground.
| The wind speed measured at a weather station at the height of 10 meters above ground.
|-
| [[Wind direction (Heat Overlay)|WIND_DIRECTION]]
| °
| The wind direction viewed from above, with 0° corresponding to North, and increasing in a clockwise fashion.
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|}


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Revision as of 09:48, 11 September 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
DATES milliseconds Dates define the amount of timeframes and are used to define the day and time for calculating sun angles.
HOURLY_RADIATION Wm-2 / hr The amount of Sun radiation this hour, measured at a weather station.
HOURLY_HUMIDITY percentage The relative humidity of the air at this hour, measured at a weather station.
SUN_DAILY_MOTION factor A factor used in calculating the Atmospheric Temperature from the calculated Urban Heat Island value.
HOURLY_TEMPERATURE °C The temperature at this hour, measured at a weather station.
WIND_SPEED m/s The wind speed measured at a weather station at the height of 10 meters above ground.
WIND_DIRECTION ° The wind direction viewed from above, with 0° corresponding to North, and increasing in a clockwise fashion.
Heat Module
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Heat Module
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Overview
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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 • Sun altitude • Sun azimuth • Sun daily motion • Wind direction • Wind speed
Building attributes
Bowen ratio • Foliage height • Foliage crown factor • Vegetation fraction
Prequels
Building elevation • Foliage height • Terrain elevation
Related
Calculation models and formulas • Feature attributes • Model attributes • Result types


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