GMS红外通道实时资料遥感海冰的研究

利用１９９４年１，２月的ＧＭＳ－４的红外亮温和可见光反照率资料，以辽江湾海冰为对象，得到了海冰参数的提以方法和冰厚遥感数字分布。根据冰水物理特性的差异，建立了冰水识别的判据，发现用亮温可以较好地识别冰水，由此和到了冰水区分的亮温疮阀值。

Study on Sea Ice Remote Sensing with GMS Real Time Infrared Channel Data

By using GMS 4 infrared brightness temperature and visible albedo data from Jan. to Feb. in 1994, methods of extracting sea ice parameters are developed and digital remote sensing pictures are obtained in Liaodong Bay. Based on the difference in physical properties between ice and water, a criterion distinguishing ice from water is set up and the threshold value of brightness is achieved. Ice thickness has been calculated according to the relationship between ice thickness and brightness by the physical and statistical methods. The retrieval distributions of ice thickness are in good agreement with observations. The results show that a precision of ice identification and thickness retrieval is 78.25% and 65.97%, respectively.