SURFRAD (Surface Radiation) Network
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NOTICE: Penn State Photosynthetically active radiation (PAR) recalculated for the period from 11 Oct. 2006 to 28 June 2007. See the problems link for details.
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NOTICE: Penn State Photosynthetically active radiation (PAR) recalculated for the period from 11 Oct. 2006 to 28 June 2007. See the problems link for details.