Revit’s weather settings

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Recently I’ve been attempting to transcode some my environment analysis Grasshopper scripts that utilise Ladybug into Dynamo. Ladybug allows you to import standard EnergyPlus Weather files (*epw). During the process, you can see which weather station the file has been taken. 

EnergyPlus_1600x800

Autodesk Climate Server

This process got me thinking about which weather information Revit uses. After a little research, I discovered that Autodesk Revit access climate data through a cloud server called the Autodesk Climate Server. This server compiles data from both physical weather stations (at airports) and from meteorological simulations. But nowhere within Revit does it show which weather station is it using. 

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Weather stations

So I dug a little deeper and came across the Revit help file. This article states that Autodesk Subscription members have access to a list of weather stations for selecting weather data to use in analyses. Weather data is available worldwide at 12-kilometre intervals, except for the United States 2004 data, which are available at 20-kilometre intervals. By logging into Revit as a subscription member and reopening the location setting, the site location map now displays multiple weather stations to choose.

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These represent the eight weather stations that are closest to the specified project location. The same eight weather stations are also displayed on the Weather Stations list. By default, the closest weather station is defined as the project weather station. By placing the cursor over a weather station map pin, it will display a tooltip with the following weather station information:

  • Station ID
  • Year for which the most recent weather data is available
  • Latitude
  • Longitude
  • Distance from the project location, and
  • Elevation.

To change the project weather station, click an alternate weather station map pin, or select a different weather station on the Weather Stations list.

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