浅析卫星遥感在黄海浒苔监测中的应用  

Satellite Remote Sensing Application to Enteromorpha Prolifera Monitoring in the Yellow Sea

作　　者：李三妹[1] 李亚君[1] 董海鹰 孙凌[1] 刘诚[1] 刘征[1] 赁青[1] 闫华[1] 赵长海[1] 

机构地区：[1]国家卫星气象中心,北京100081 [2]青岛市气象局,青岛266003

出　　处：《应用气象学报》2010年第1期76-82,共7页Journal of Applied Meteorological Science

基　　金：国家自然科学基金项目(40606043);国家863计划项目(2007AA12Z145);国家重点基础研究发展计划项目(2006CB40370)

摘　　要：通过对浒苔的光谱特性分析,建立基于极轨气象卫星和环境卫星资料监测浒苔的模型技术方法,利用该模型实现浒苔信息提取,生成浒苔监测产品,并在地理信息技术支持下,分析浒苔影响范围及移动路径。利用2006—2008年卫星资料分析表明:2006年和2007年夏季,黄海未出现明显的浒苔信息;2008年5月中旬,浒苔始发于黄海中南部;6月中下旬,浒苔影响范围最大时达到800 km2;7月中下旬,黄海海域浒苔范围明显减小。对浒苔移动路径和黄海海域风场等资料的综合分析结果表明,浒苔位置移动主要受风力和洋流作用的影响。A method of enteromorpha prolifera monitoring using moderate resolution environment satellite data is proposed. Based on the spectral characteristics of enteromorpha prolifera, remote sensing methods and processing procedures are established and then the monitoring results are derived. With the support of GIS technique, the affected range, extent, moving path and coverage of enteromorpha prolifera can be developed and relevant products are produced. During the marine alga catching campaign, enteromorpha prolifera monitoring products are made and provided to the campaigners in time. These products help to find enteromorpha prolifera area promptly and are highly evaluated. The monitoring results show that enteromorpha prolifera in the Yellow Sea appears in mid-May of 2008 at first, and then the range of enteromorpha prolifera expand gradually and move northwestward. In mid-June, enteromorpha prolifera influence the region of Yellow Sea near Qingdao Olympic regatta sea area and the size reaches up to 800 kmz. With the progress of a massive algae clearing activity, the range of enteromorpha prolifera decreases rapidly. In mid-July of 2008, there is little enteromorpha prolifera in Qingdao Olympic regatta sea area. The temporal and spatial distribution characteristics of enteromorpha prolifera from 2006 to 2008 are analyzed using multiple observations of EOS/MODIS data and the result shows that there are no evident phenomena of enteromorpha prolifera in Yellow Sea in the summers of 2006 and 2007. The coverage map of enteromorpha prolifera accumulated from multiple observation shows that high density enteromorpha prolifera appears most frequently in the offshore area and the sea area about 100 km south of Qingdao. About more than 20000 kmz of sea area is influenced by enteromorpha prolifera in different extent in the summer of 2008 altogether. The moving path of enteromorpha prolifera induced from the multiple observation from May to July of 2008 shows that enteromorpha prolifera moves from southeast to northwest.

关 键 词：浒苔 黄海 卫星遥感 

分 类 号：Q948[生物学—植物学]