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Open Question: Where can I find measures of sunlight contacting Earth's surface?

7 January 2009, 4:41 am

I am working on a project to build an algal fuel production facility in Nevada. Ideally, I would like to show that Nevada receives lots of incoming electromagnetic radiation from the sun that falls into the photosynthetically active radiation (PAR). I do not have the time or resources to measure it myself. Where can I access data on average annual PAR (W / m^2) from any given geographical area?... Read More »