黄海浒苔灾害遥感立体监测

摘要

2008年夏天,浒苔在黄海、东海海域第一次大规模爆发,成为自然灾害,严重威胁了第29届青岛奥帆赛的正常举办.利用卫星、航宅、船舶等不同平台的遥感方式对浒苔灾害进行实时、连续、动态的立体监测.首先介绍了立体监测系统的构成;然后在通过对浒苔、海水灾害现场光谱测量的基础上分析浒苔光谱特征,并结合多平台、多传感器、多光谱遥感数据的特点,建立了浒苔信息提取模型;最后对不同平台的遥感监测结果进行了比对,结合时间序列数据,分析了浒苔灾害演变趋势;通过第29届奥帆赛区及周边海域应急监测的应用,证明该立体监测系统方案的可行性.%In the summer 2008, Enteromorpha Prolifra broke out in Yellow Sea and East Sea on a large scale for the first time,and became a marine disaster. The authors constructed a stereoscopic monitoring system which monitored the disaster continuously, dynamically and in real time. The present paper introduced the construction of the stereoscopic monitoring system; through analyzing the spectral characteristics of Enteromorpha Prolifra and ocean water which were acquired in a field experiment, confirmed Enteromorpha Prolifra retrieval models based on multi-platform multi-sensor and multi-spectral remote sensing data, contrasted the different scale monitoring results, and analyzed the evolvement rules with time-series analysis. This system was applied to the Enteromorpha Prolifra emergency monitoring in the 29th Olympic sailing area. It was proved feasible and valuable for the Olympic safeguard.