极地研究Issue(4)：410-417,8.DOI:10.13679/j.jdyj.2014.4.410
利用海洋（HY-2）卫星微波辐射计数据反演北极区域海冰密集度
ARCTIC SEA ICE CONCENTRATION RETRIEVAL USING HY-2 RAD IOMETER DATA
摘要
Abstract
The Chinese marine satellite (HY-2)was successfully launched on 1 6 August 201 1 .We investigated an algo-rithm for sea ice concentration retrieval,based on brightness temperature data from the HY-2 scanning radiometer. In this study,the tie-points for brightness temperatures were selected based on statistical analysis of the polarization gradient ratio and the spectral gradient ratio over typical areas.The thresholds of two weather filters were deter-mined to reduce the atmospheric effect over the open ocean.The total ice concentration over the Arctic in 201 2 was calculated and compared with two existing operational data sets from the National Snow and Ice Data Center (NSIDC)and the University of Bremen.The result of the comparison showed that the calculated sea ice concentra-tion from the HY-2 radiometer data were comparable with ideal values from three typical ice regions in the Arctic O-cean.Our results were also in good agreement with two operational products.Our study demonstrated that HY-2 scanning radiometer data and our retrieval algorithm adapted from the NASA algorithm could be used for operational sea ice services in the Arctic Ocean.关键词
海洋2号卫星/微波辐射计/海冰密集度/反演/北极Key words
HY-2/scanning radiometer/sea ice concentration/retrieval/Arctic引用本文复制引用
石立坚,王其茂,邹斌,施英妮,焦敏..利用海洋（HY-2）卫星微波辐射计数据反演北极区域海冰密集度[J].极地研究,2014,(4):410-417,8.基金项目
国家国际科技合作专项（2011 DFA22260）和南北极环境综合考察与评估专项（CHINARE2013-02-04，CHINARE2012-04-03-02）资助 （）
