基于GF5-AHSI数据的新“三边参数”浅海水深反演  

New"Trilateral Parameters"Inversion of Shallow Seawater Depth Based on GF5-AHSI Data

作　　者：王永敏 WANG Yongmin(Shanghai Investigation,Design,Research Institute Co.,Ltd.,Shanghai 200434,China)

机构地区：[1]上海勘测设计研究院有限公司,上海200434

出　　处：《地理信息世界》2021年第1期80-84,共5页Geomatics World

基　　金：上海市科委河口疏浚土资源利用和新横沙滩面生态培育研究及应用示范项目(18DZ1206600)资助。

摘　　要：以上海市横沙滩涂浅水区为研究区域,利用GF5-AHSI高光谱遥感数据和同时期水深数据,通过新“三边参数”方法和相关分析提取建模因子,基于最优标度回归方法建立该区域的水深反演模型,并进行精度验证。研究发现:检验样本的决定系数达到了0.885,均方根误差为0.80 m,模型精度和可靠性较高,可以用于横沙浅水区水深反演。Taking the shallow water area of Hengshatan in Shanghai as the research area,using GF5-AHSI hyperspectral remote sensing data and water depth data of the same period,the new"trilateral parameter"method and related analysis were used to extract the modeling factors,and the water depth inversion model of the area was established by the optimal scale regression method.By comparing and verifying the accuracy of the four models,it was found that the R2 reached 0.885,and the RMSE was 0.80 meters,and the model accuracy and reliability were high,and it could be used for water depth inversion in Hengsha shallow water area.

关 键 词：GF5高光谱遥感数据 水深反演 新“三边参数” 相关分析 最优标度回归 

分 类 号：P234.2[天文地球—摄影测量与遥感]