摘要
分别于2008年10月、2009年10月和2011年7月对鄱阳湖地区开展三个航次的科学调查,在分析实测数据基础上,利用TSM浓度应用HJ卫星CCD传感器数据,提出一种TSMI遥感反演的新方法,并与传统基于实测光谱与TSM浓度建立的方法对比分析,模型反演平均相对误差分别为17.5%和20.01%。实验结果显示,利用TSMI指数方法反演结果较优,不仅可以提高TSM浓度遥感反演精度,而且有利于解决内陆浑浊水体遥感监测中水色大气校正算法研究不足的问题。
Poyang Lake is the largest freshwater lake in China, with dramatic variation of the water total suspended matter (TSM) concentration. Three cruises of investigation data were collected in Oct 2008, Oct 2009 and Jul 2011 in Poyang Lake. A total suspended matter in- dex (TSMI) approach was used with data from HJ satellite charge coupled device (CCD) in- struments to characterize the TSM concentration. The result showed that accuracy of total suspended matter retrieval model was improved. The model established by between TSMI and in-situ TSM concentration, and the model built by remote sensing reflectance and in-situ TSM concentration were compared. The TSMI method with high accuracy for the inland tur- bid water of Poyang Lake, was more effective way to monitor TSM concentration by remote sensing.
出处
《武汉大学学报(信息科学版)》
EI
CSCD
北大核心
2013年第11期1303-1307,共5页
Geomatics and Information Science of Wuhan University
基金
国家863计划资助项目(2012AA12A304)
国家自然科学基金资助项目(41071261
41101415
40906092)
中央高校基本科研业务费专项资金资助项目(111044)
水利部公益性行业科研专项资助项目(201001054)
测绘遥感信息工程国家重点实验室专项科研经费资助项目
关键词
HJ
CCD
总悬浮物
总悬浮物指数
鄱阳湖
HJ CCD
LISST
total suspended matter (TSM)
total suspended matter index(TSMI)
Poyang Lake