渤海湾近岸海域水深遥感反演研究  

Study on water depth derived models based on remote sensing in the coastal seawaters of Bohai Bay

作　　者：李晋[1] 田洪军[1] 徐文斌[1] 翟伟康[1] 

机构地区：[1]国家海洋信息中心,天津300171

出　　处：《测绘科学》2015年第6期56-60,共5页Science of Surveying and Mapping

基　　金：国家海洋信息中心业务项目(212013036B);天津市海域使用动态监视监测管理系统建设

摘　　要：针对多光谱遥感技术进行浅海水深信息提取具有覆盖地域大、动态连续监测等特点,该文利用环境与灾害监测预报小卫星星座A星（HJ-1A）影像数据,对渤海湾20m以内近岸水域的水深进行实验研究.通过对HJ-1A遥感图像不同波段及波段组合的反射率与实测水深值的相关关系分析,选取敏感波段,建立最佳回归模型,定量计算研究区水深值.研究发现：5-10m水深区域内遥感反演效果最好;10-20m次之;0-5m受沿岸构筑物、泥沙等影响严重,反演效果较差.Extracting shallow water depth based on multi-spectral remote sensing technology has advantages of wide covering range and dynamic observation, which has a wide prospect. The theory of water depth inversion of remote sensing and spectral characteristics of suspended sediment water was studied in this paper, and then the Bohai coastal water within 20m was selected as the experimental area. Using remote sensing images of HJ-1A satellite, the correlation of spectral reflectance values and the measured depth was analyzed, the best deriving model was established, and the seawater depth was calculated. The study conclusion was that best area was 5-10m, followed by 10-20m, the worst was 0-Sin.

关 键 词：水深遥感 光谱特征 渤海湾 环境与灾害监测预报卫星 

分 类 号：P23[天文地球—摄影测量与遥感]