| 太湖水质参数MODIS的遥感定量提取方法 |
| |
| 引用本文： | 吕恒,黄家柱,江南.太湖水质参数MODIS的遥感定量提取方法[J].地球信息科学,2009,11(1):104-110. |
| |
| 作者姓名： | 吕恒 黄家柱 江南 |
| |
| 作者单位： | 南京师范大学地理信息科学江苏省重点实验室, 南京 210097 |
| |
| 基金项目： | 国家自然科学基金，地理信息科学江苏省重点实验室开放基金，南京师范大学引进人才科研启动基金 |
| |
| 摘 要： | 本文利用MODIS数据的可见光、近红外波段和准实时的地面采样数据,分别利用线性回归模型和神经网络模型反演了太湖的叶绿素a和悬浮物浓度.结果表明,利用MODIS数据的波段组合(M2/M8)和(M2/M9)可估算太湖的叶绿素a浓度;而MODIS数据的波段组合(M12/M17)、(M13/M17)及MODIS(M4)波段能定量估算太湖的悬浮物浓度,但估算精度仍不能满足实际需要.因此,构建了一个以MODIS可见光及近红外波段为输入,以太湖水质参数为输出的2层BP神经网络模型反演太湖的水质参数,大大提高了反演精度.
|
| 关 键 词： | MODIS 水质参数 线性模型 神经网络模型 定量提取 |
| 收稿时间： | 2007-04-17; |
Quantitative Retrieval of Water Quality by Remote Sensing in Taihu Lake Based on MODIS data |
| |
| LU Heng HUANG Jiazhu JIANG Nan.Quantitative Retrieval of Water Quality by Remote Sensing in Taihu Lake Based on MODIS data[J].Geo-information Science,2009,11(1):104-110. |
| |
| Authors: | LU Heng HUANG Jiazhu JIANG Nan |
| |
| Institution: | 1. Jiangsu Provincial Key Laboratory of Geographic Information Science,Nanjing Normal University,Jiangsu,Nanjing 210097,China;
2. Nanjing Institute of Geography & Limnology,CAS,Nanjing 210008,China |
| |
| Abstract: | MODIS has become a potential remote sensing data for monitoring inland lakes' water quality because of it's high spectral resolution,time resolution and radiance resolution.The correlation between water quality parameters and visible and near infra-red bands was analyzed and the liner model and BP neural net model were used to retrieve water quality concentration.It was demonstrated that SS in Taihu Lake has the highest correlation coefficient with MODIS band 13,chlorophyll-a in Taihu Lake has the highest c... |
| |
| Keywords: | MODIS |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地球信息科学》浏览原始摘要信息 |
| 点击此处可从《地球信息科学》下载免费的PDF全文 |
