Lat-Long coordinates - what do they refer to?

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The latitude and longitude coordinates provided with the PSM data: what location do they specifically refer to?

Is it a geographic point that the PSM solar data represents?

Or, is it the corner of a grid rectangle as displayed on the NSRD Data Viewer? Or some other part of a grid rectangle as displayed on the NSRDB Data Viewer, like a center point?

Thanks.

Dear Mike,

The latitude and longitude coordinates provided with the PSM data represent the center of the pixel.

Regards,

Aron Habte

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Sensing, Measurement and Forecasting Group

Power Systems Engineering Center

National Renewable Energy Laboratory (M/S SRRL)

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https://nsrdb.nrel.gov/

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http://www.nrel.gov/rredc/solar_resource.html