Relative accuracy of 1-minute and daily total solar radiation data for 12 global and 4 direct beam solar radiometers [electronic resource] : preprint / D.R. Myers and S.M. Wilcox.
Imprint
Golden, CO : National Renewable Energy Laboratory, [2009]
Title from title screen (NREL, viewed on April 13, 2009).
"To be presented at the American Solar Energy Society Annual Conference, Buffalo, New York, May 11-16, 2009."
"March 2009."
Summary
This report evaluates the relative performance of 12 global and four direct beam solar radiometers deployed at a single site over a 12-month period. Test radiometer irradiances were compared with a reference irradiance consisting of either an absolute cavity radiometer (during calibrations) or a low uncertainty thermopile pyrheliometer (during the evaluation period) for pyrheliometers; and for pyranometers a reference global irradiance computed from the reference pyrheliometer and diffuse irradiance from a shaded pyranometer.
