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Insolation by country?

Maven
in Climate Science

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I'm doing a regression analysis on several European countries and I want one of my variables to represent average insolation (or solar radiation) per country. However, I cannot find these kind of data in any website: I can only find maps that give you the insolation for a given point.

 

Does someone know a website that provides this kind of data? Or could someone propose me a way to calculate this insolation per country?

 

Thank you in advance.

I'm doing a regression analysis on several European countries and I want one of my variables to represent average insolation (or solar radiation) per country. However, I cannot find these kind of data in any website: I can only find maps that give you the insolation for a given point.

 

Does someone know a website that provides this kind of data? Or could someone propose me a way to calculate this insolation per country?

 

Thank you in advance.

SolarGIS-Solar-map-Europe-en.png

You might not find a number for individual countries because, as doG's map shows, insolation varies with latitude (among other variables). It's given as location-dependent because it is.

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