Near-Real-Time Defense Meteorological Satellite Program (DMSP) Special Sensor Microwave Imager/Sounder (SSMIS) Daily Polar Gridded Sea Ice Concentrations, Version 2

This Near-Real-Time Defense Meteorological Satellite Program (DMSP) Special Sensor Microwave Imager/Sounder (SSMIS) Daily Polar Gridded Sea Ice Concentrations (NRTSI) data set provides sea ice concentrations for both the Northern and Southern Hemispheres. The near-real-time passive microwave brightness temperature data that are used as input to this data set are acquired with the SSMIS on board the DMSP satellites. Investigators generate sea ice concentrations from these data using the NASA Team algorithm. These NRTSI data are primarily meant to provide a best estimate of current ice conditions based on information and algorithms available at the time the data are acquired.本近实时国防气象卫星计划（Defense Meteorological Satellite Program, DMSP）专用传感器微波成像/测声仪（Special Sensor Microwave Imager/Sounder, SSMIS）逐日极区网格化海冰浓度（Near-Real-Time Defense Meteorological Satellite Program Daily Polar Gridded Sea Ice Concentrations, NRTSI）数据集，可为南北半球提供海冰浓度数据。本数据集采用的输入数据，是由搭载于DMSP卫星的SSMIS获取的近实时被动微波亮温数据。研究人员借助NASA团队算法（NASA Team algorithm）从上述数据中反演得到海冰浓度。该NRTSI数据集主要用于基于数据采集时可用的相关信息与算法，对当前海冰状况给出最优估算结果。