摘要
浒苔是一种大型的浮游性海藻,它的爆发给环境造成了很大的影响。本文介绍了利用EOS/MODIS和RADARSAT遥感数据探测2008-2009年发生在黄海及邻近海域(119°E^122°E,34°N^36°30′N之间)的浒苔灾害的研究。本研究首先利用MODIS传感器的1、2波段计算了相应海域的NDVI。在云层较厚的情况下结合RADARSAT图像来辅助判定大型浮游藻类的信息。并计算了长时间序列NDVI,利用阀值分割法计算了浒苔爆发的面积信息,利用ARCVIEW工具对长时间序列的浒苔分布的矢量信息进行处理,得到了浒苔的漂浮路线,起源。初步研究了MODIS监测浒苔的可行性,讨论了浒苔的爆发可能对渔业资源造成的潜在影响。
Enteromorpha prolifra is a kind of floating macro-algae and whose outburst rendered a disaster effect on the environment.The EOS/MODIS as well as the RADARSAT data were used to monitor the floating macro-algae disaster which was effect in the Yellow Sea area as well as the nearby area（34°30′N～36°N,119°30′E～121°30′E）during the time period of 2008-2009.This study first used the band 1 and band 2 data of the MODIS and get the result of the NDVI of these area,and combined the RADARSAT data to detect the macro-algae when the cloud is seriously thick,then process the vector-information using the ARCVIEW system to get the information of the route and origin of the macro-algae.To sum up,the feasibility of monitoring the macro-algae using the MODIS was elementally studied and the potential effect of the effect to the fishery resource of the breakout of the Enteromorpha prolifra was discussed.
出处
《海洋湖沼通报》
CSCD
北大核心
2010年第4期1-8,共8页
Transactions of Oceanology and Limnology
基金
物种资源保护(2130135)
