STUDY ON SEA ICE WITH GMS REAL-TIME DATA

被引：0
|
作者：
李万彪
朱元竞
陈俊晔
赵柏林
机构：
[1] Laboratory for Severe Storm Research Department of Geophysics
[2] Beijing 100871
[3] Peking University
来源：
Acta Meteorologica Sinica | 1999年 / 03期
基金：
中国国家自然科学基金;
关键词：
geostationary meteorological satellite(GMS); sea ice; ice-water distinguishing; ice thickness; ice concentration;
D O I：
暂无
中图分类号：
P731.15 [海冰];
学科分类号：
0707 ;
摘要：
By use of GMS-4 infrared brightness temperature and visible albedo data from January toFebruary in 1995,the method for extracting of sea ice parameters is developed.The digital remotesensing picture is obtained on Liaodong Bay.Based on the difference in physical properties betweenice and water,a criterion distinguishing ice from water is set up.Ice thickness has been calculatedaccording to the relationship between ice thickness and brightness as well as albedo.Iceconcentration is retrieved due to the difference on albedo between ice and water.The resultsindicate that the accuracy of ice-water distinguishing is 84.8%,the errors of ice thickness and iceconcentration are 3.8 cm and 22%,respectively.
引用
收藏
页码：360 / 366
页数：7
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