AMSR2 Daily Polar Gridded Sea Ice Concentrations, Version 2

The AMSR2 Daily Polar Gridded Sea Ice Concentrations data set provides sea ice concentrations for both the Northern and Southern Hemispheres. The Advanced Microwave Scanning Radiometer 2 (AMSR2) sensor on the Japan Aerospace Exploration Agency (JAXA) Global Change Observation Mission – Water (GCOM-W) satellite provides the daily passive microwave brightness temperature [TB] data via AMSR2 Daily Polar Gridded Brightness Temperatures (NSIDC-0802) which is used as input for this product. As this product is intended to provide a follow-on data set for Near-Real-Time DMSP SSMIS Daily Polar Gridded Sea Ice Concentrations (NSIDC-0081) and Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data (NSIDC-0051), it uses TB fields gridded to match TBs gridded from SSMIS sensors on the same 25km polar stereo grids.

AMSR2每日极区网格化海冰浓度数据集（AMSR2 Daily Polar Gridded Sea Ice Concentrations）可提供南北半球的海冰浓度数据。日本宇宙航空研究开发机构（Japan Aerospace Exploration Agency，JAXA）全球变化观测任务—水（Global Change Observation Mission – Water，GCOM-W）卫星搭载的高级微波扫描辐射计2（Advanced Microwave Scanning Radiometer 2，AMSR2），通过AMSR2每日极区网格化亮温数据集（NSIDC-0802）获取每日被动微波亮温（brightness temperature，简称TB）数据，该数据作为本产品的输入参数。鉴于本数据集旨在作为近实时DMSP SSMIS每日极区网格化海冰浓度（NSIDC-0081）与源自Nimbus-7 SMMR、DMSP SSM/I-SSMIS被动微波数据的海冰浓度数据集（NSIDC-0051）的接续数据集，其采用的亮温场网格与同25公里极地立体投影网格下SSMIS传感器生成的亮温网格完全匹配。