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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.
By use of GMS-4 infrared brightness temperature and visible albedo data from January to February in 1995, the method for extracting sea ice parameters is developed. The digital remote sensing 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. 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.