Arctic Sky-Radiometer Measurement

Sky-radiometer (Prede, Model POM-01, POM-02) placed on the roof-top of Rabben Station in Ny-Alesund, Svalbard acquires direct solar spectral irradiance and circum-solar radiance distribution on a continuous operation basis with a typical time interval of 10 min, under conditions of the sun height being greater than 5 degrees, since 11 March 2000. No data is available for the polar night season as the sky-radiometry is based on solar radiation measurement.