基于环境卫星CCD数据的黄海浒苔遥感监测

2007年以来,黄海海域每年夏季都发生大面积浒苔绿藻潮,影响沿岸人民的生活、生产。考虑到其分布范围动则几千、上万平方公里,水面监测很难实施,尝试利用遥感技术对其分布和发展变化情况进行监测。基于中国自主产权的环境卫星(HJ1)数据,采用经典植被指数算法和人工辅助判读方法,对2013年黄海浒苔暴发全过程进行了连续遥感监测,分析了此次浒苔过程的分布和漂移路线。监测结果表明,浒苔绿藻潮首发于江苏盐城东部海域,由南向北逐渐漂移,面积逐渐扩大,结束于青岛东北部海域;该期间,浒苔最大覆盖面积达663.54平方公里。

Remote Sensing Monitoring HAB in Yellow Sea by HJ1-CCD

Since 2007, there was harmful algae blooming (HAB) occurred in China's Yellow Sea in summer annually. This influences the coastal people's life and production. Because of HAB distribution range covering the thousands of square kilometers area, it's difficult to implement monitoring on the sea. The author of this article attempted to use remote sensing to monitor HAB's distribution and development. Based on data of China's Environmental Satellite, the author monitored the distribution and drift route of the HAB occurring in yellow sea in 2013. The remote sensing monitoring result showed that this HAB began in sea area near Yancheng city, Jiangshu province. It drifted from south to north with distribution area gradually expanded, and ended in the waters off Northeastern Qingdao. During this period, the HAB the largest area reached to 663.54 square kilometers.