TY  - Data
T1  - Daily sea ice concentration product based on brightness temperature data of FY-3D MWRI in the Arctic（2010-2019）
A1  - None
A1  - None
DO  - 10.1594/PANGAEA.945188
PY  - 2023
DA  - 2023-10-23
PB  - National Cryosphere Desert Data Center
AB  - The sea ice concentration dataset (SIC) is derived from the brightness temperature recalibrated by the Microwave Radiation Imager (MWRI) sensor. The MWRI sensor is equipped with China's second-generation solar synchronous meteorological satellites, namely FY-3A, FY-3B, FY-3C, and FY-3D, launched in 2008. Retrieve the SIC dataset using the advanced Arctic radiation and turbulence interaction research sea ice (ASI) algorithm involving dynamic connection points. The MWRI-ASI SIC dataset is projected onto a 70 degree polar grid at a spatial resolution of 12.5 kilometers in the Arctic and Antarctic. The time coverage of this dataset is from November 12, 2010 to December 31, 2019, with 23 days of temporary loss in the Arctic and 82 days of temporary loss in the Antarctic. The MWRI-ASI SIC dataset is implemented in TIFF format. Data values have specific meanings: "0-100" represents the percentage of SIC, "-1" represents land, "-2" represents polar holes, and "NoData" represents missing data. The accuracy of this dataset is evaluated by ship based observation SIC. 8887 and 3882 SIC observation samples were used in the North and South Poles, respectively. The difference between MWRI SIC and shipborne SIC is concentrated between -20% and 20%, with an overall average absolute deviation of 16.1% in the Arctic and 17.1% in the Antarctic, respectively. The Arctic and Antarctic sea ice range characteristics obtained from the MWRI-ASI SIC are consistent with the sea ice index provided by the Norwegian Meteorological Institute (OSI-SAF) and NASA's National Snow and Ice Data Center (NSIDC), which are satellite applications for ocean and sea ice. This dataset can be regarded as an important backup of passive microwave products for sea ice concentration or range, for interdisciplinary research in polar regions and other regions
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/9bf372f1-969c-4690-81a0-35f2838d5152
ER  -