Daily Solar Radiation - Surface Meteorological Data

The major parameters making up this data file are sunrise/sunset (local standard time), extraterrestrial radiation, direct radiation, global radiation on a horizontal surface (1. observed data, 2. engineering corrected data, 3. model corrected data), supplemental radiation measurement, minutes and percent of possible sunshine, temperature (max, min, mean), precipitation, snowfall, snow depth, days with weather, and sky cover.

Daily solar radiation - surface meteorological data (SOLDAY) is a common format designed to provide quality controlled daily solar insolation and collateral meteorological data available at the National Centers for Environmental Information (NCEI).