A Blended Sea Ice Concentration Product from AMSR2 and VIIRS

An effective blended Sea-Ice Concentration (SIC) product has been developed that utilizes ice concentrations from passive microwave and visible/infrared satellite instruments, specifically the Advanced Microwave Scanning Radiometer-2 (AMSR2) Visible Infrared Imaging Radiometer Suite (VIIRS). The blending takes advantage of all-sky capability AMSR2 sensor high spatial resolution VIIRS, though it only clear sky characteristics VIIRS. After both VIIRS images are remapped to a 1 km EASE-Grid version 2, Best Linear Unbiased Estimator (BLUE) method is used combine SIC for at under clear-sky conditions. Under cloudy-sky conditions with bias correction used. For validation, Landsat data collocated February 2017 31 October 2019. Bias, standard deviation, root mean squared errors calculated SICs AMSR2, field. outperforms individual SICs. higher provide beneficial information improve upon conditions, especially during summer melt season, as consistent negative near above melting point.