基于多源遥感数据的大连新港海域溢油诊断

利用MODIS和Radarsat-2遥感数据对大连新港2010年7月16日的海上溢油信息进行提取分析,经过预处理的MODIS遥感数据,采用波段运算提取出溢油信息。较高分辨率的Radarsat-2数据经过几何校正、滤波等预处理,根据溢油的特点采用纹理分析法提取出边界明显的溢油信息,并与MODIS的溢油结果进行比较分析,排除MODIS图像上的非溢油信息,实现两种数据的优势互补。利用ArcGIS 9.3软件分别对2010年7月18日的MODIS数据和2010年7月19日的Radarsat-2数据提取出的溢油区域进行面积计算,其结果分别为174km2和198 km2与中国海监船的报道相符合,说明了此方法的可行性。

The oil spill diagnosis of Dalian New Port sea based on multi-source remote sensing data

The oil spill information of the Dalian New Port on Jul. 16, 2010 was extracted and analyzed by MODIS and Radarsat-2 remote sensing data. After the pre-processing of MODIS remote sensing data, take measure of band math to extract oil spill information. For higher resolution Radarsat-2 remote sensing data, after the pre-processing of geometric correction, filtering and so on, take the method of texture analysis to extract oil spill information with the obvious boundary, then compared with the extracting oil spill result in MODIS remote sensing image, eliminate the non-oil information in MODIS remote sensing image, so it can complement each other"s advantages by using the two remote sensing data. For MODIS data on Jul. 18, 2010 and Radarsat-2 data on Jul. 19, 2010, the extracted oil spill area which is calculated by the ArcGIS software is 174 km? and 198 km?, respectively, which is according with the report of the China Ocean Monitoring Ship, so that it shows the feasibility of this method.