运用遥感方法分析浅水湖泊水质变化的特征  

Analyzing the Characteristics of Shallow Lake Water Quality Changes by Using Remote Sensing Methods

作　　者：秦海旭[1] 钱新[2] 

机构地区：[1]南京市环境保护科学研究院,江苏南京210013 [2]污染控制与资源化研究国家重点实验室,南京大学环境学院,江苏南京210093

出　　处：《污染防治技术》2013年第5期1-6,共6页Pollution Control Technology

摘　　要：随着经济的快速发展,中国的自然环境面临着巨大的压力,作为水环境重要组成部分的淡水湖泊,其水质也不容乐观,五大淡水湖泊已受到污染的威胁。文中利用NOAA卫星提供的遥感数据,计算出巢湖、洪泽湖、太湖的NDVI(归一化植被指数)值,结合实地监测的叶绿素值,对这三大湖泊的叶绿素分布进行了预测,并根据预测值对他们的水质变化特征进行分析,试图归纳和总结三大湖泊的相同点以及各自的特征。通过文中的分析,归一化植被指数(NDVI)在预测浅水湖泊的水质方面具有一定的实用性。With the rapid economy development, our country~ environment is confl＇onted with tremendous pressure. As an im- portant part of water environment, the freshwater lake~ water quality is not as good as before. The five freshwater lakes are all con- taminated seriously. The remote sensing data supplied by the satellite NOAA are used to calculate the NDVI of Lake Chaohu,lake Hongze and lake Taihu in this paper. And then associated with the chlorophyll - a concentration in the three lakes based on the field survey to forecast the distribution and change of the chlorophyll - a in the lakes. The change characteristics of the three lakeg water quality are analyzed, to know whether it could reflect the lakes＇characteristics correctly. According to the analysis, we will see that NDVI has practicability in forecasting the water quality of shallow lakes to a certain extent.

关 键 词：浅水湖泊 NOAA卫星 NDVI 叶绿素 富营养化 

分 类 号：X703[环境科学与工程—环境工程]