Aerosol Optical Properties Obtained By Sky-Radiometer Measurements At Ny-Alesund, Svalbard

摘要

The influence of the aerosol direct and indirect effects on climate in the arctic region is further extended to the global climate. Measurement of aerosol optical properties by using Sky-Radiometer (Prede Co., POM-02) has been performed continuously at Rabben Station, a Japanese Station operated by the NIPR Arctic Environment Research Center, in Ny-Alesund, Svalbard since early 2000’s. Temporal variations of the aerosol optical thickness (AOT) and the Angstrom exponent have been obtained from the direct solar radiation measurement with the sky-radiometer for the period of 2009 to 2014. The calibration of the instrument is based on the so-called Langley-plot method.