地理空间信息2013，Vol.11Issue(2)：82-84,87,4.DOI:10.11709/j.issn.1672-4623.2013.02.026
辐射沙脊群海域悬沙场遥感反演方法
Remote Sensing Retrieval of Suspended Sediment Concentration Field in Radial Sand Ridges Area
摘要
Abstract
Suspended sediment field has great significance in the study of sand ridge development and geomorphic evolution, also in the matter of tidal flat reclamation and coastal engineering. In this paper, on the basis of hydrology-sediment data obtained in JS9O8 investigation in 2006 and contemporaneous MODIS images, remote sensing quantitative retrieval model was established. Suspended sediment concentration distribution maps in different tide levels and mean sediment concentration distribution map of a half tidal cycle were obtained. The retrieval map was compared with the numerical simulation map using suspended sediment dynamic mathematical model. The result showed that: the precision of (B1-B4) / (B1+B4) logarithm mode was high. The remote sensing retrieval map was similar to the numerical simulation map. High-concentration region of suspended sediment were mainly located in near Jianggang, Feihuanghe estuary and Yangtze estuary. Retrieval map had more details than the simulation map. It can reflect clearly the influence of the estuaries, sandbars, waterways on the distribution of suspended sediment, and can provide technical support for the exploration of suspended sediment transport.关键词
辐射沙脊群/遥感反演/悬沙场/MODIS影像Key words
radial sand ridges/remote sensing retrieval/ suspended sediment field/ MODIS images分类
天文与地球科学引用本文复制引用
潘进,丁贤荣,康彦彦,葛小平,李森..辐射沙脊群海域悬沙场遥感反演方法[J].地理空间信息,2013,11(2):82-84,87,4.基金项目
国家973计划资助项目(2010CB429001) （2010CB429001）
国家海洋公益性行业科研专项资助项目(201005006-3) （201005006-3）
国家科技支撑计划资助项目(2012BAB03B01) （2012BAB03B01）
江苏近海海洋综合调查与评价资助项目 (JS-908-01-02) （JS-908-01-02）
