STUDY ON SEA ICE WITH GMS REAL-TIME DATA* |
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| Authors: | Li Wanbiao Zhu Yuanjing Chen Junye and Zhao Bolin |
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| Institution: | Laboratory for Severe Storm Research, Department of Geophysics, Peking University, Beijing 100871;Laboratory for Severe Storm Research, Department of Geophysics, Peking University, Beijing 100871;Laboratory for Severe Storm Research, Department of Geophysics, Peking University, Beijing 100871;Laboratory for Severe Storm Research, Department of Geophysics, Peking University, Beijing 100871 |
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| Abstract: | By use of GMS-4 infrared brightness temperature and visible albedo data from January to February in 1995,the method for extracting of sea ice parameters is developed.The digital remote sensing picture is obtained on Liaodong Bay.Based on the difference in physical properties between ice and water,a criterion distinguishing ice from water is set up.Ice thickness has been calculated according to the relationship between ice thickness and brightness as well as albedo.Ice concentration is retrieved due to the difference on albedo between ice and water.The results indicate that the accuracy of ice-water distinguishing is 84.8%,the errors of ice thickness and ice concentration are 3.8 cm and 22%,respectively. |
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| Keywords: | geostationary meteorological satellite(GMS) sea ice ice-water distinguishing ice thickness ice concentration |
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