Solar Radiation output units

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10-26-2018 08:29 AM
DanielMeaney
New Contributor II

Help on the Area Solar Radiation tool say "It is recommended to have your data in a projected coordinate system with units of meters."

My input data is in a projected coordinate system (Ohio State Plane North Feet) and my Z units are feet.  Will my output results be WH per square feet?

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DanPatterson_Retired
MVP Esteemed Contributor

Area Solar Radiation—Help | ArcGIS Desktop 

The output radiation rasters will always be floating-point type and have units of watt hours per square meter (WH/m2). The direct duration raster output will be integer with unit hours.

hmmmm  then

It is recommended to have your data in a projected coordinate system with units of meters. If you choose to run the analysis with a spherical coordinate system, you will need to specify an appropriate z-factor for that latitude.

perhaps they have abandoned feet.

As a check, run with your 'feet', run with the same in a projected coordinate system which is in meters and run a test with the data in decimal degrees and the appropriate z-factor.

If the help topic needs clarification at that point, you would be advised to report it using the Feedback on this topic at the bottom of the help file.

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