SP-613 - SEASAR 2006

Abstract

ABSTRACT Liaodong bay in Bohai Sea is the main China offshore sea ice region, and SAR images can be used in the operational sea ice monitoring of this area. In this paper, we collected time series of ENVISAT ASAR imageries covering Liaodong bay and analyzed their backscattering distributions and texture features. From the differences between the open water and sea ice in the mean feature images, we extracted the open water. Then the area of sea ice can be obtained. Three SAR images of different time are selected to describe the changes of sea ice extent at different time. Then the results are compared with those obtained from synchronous MODIS images, and the results prove the validation of using SAR images to monitor sea ice extent and its evolution in Liaodong bay