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引用本文:吴敏,王学军.应用MODIS遥感数据监测巢湖水质.湖泊科学,2005,17(2):110-113. DOI:10.18307/2005.0203
WU Min,WANG Xuejun.Application of Satellite MODIS in Monitoring the Water Quality of Lake Chaohu. J. Lake Sci.2005,17(2):110-113. DOI:10.18307/2005.0203
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应用MODIS遥感数据监测巢湖水质
吴敏,王学军
北京大学环境学院, 地表过程分析与模拟教育部重点实验室, 北京100871
摘要:
以巢湖为研究对象,对MODIS的各个波段辐射率与水质参数叶绿素a浓度、悬浮物浓度和透明度进行拟合,分析了MODIS各个波段辐射率的拟合在监测大型内陆湖泊水质中的可行性.结果表明:MODIS波段辐射率的组合能与巢湖水质参数进行较好的匹配,MODIS波段1-4和10-11对于监测巢湖中叶绿素a浓度、悬浮物浓度和透明度有重要意义.
关键词:  MODIS  波段  叶绿素a  悬浮物  透明度  巢湖
DOI:10.18307/2005.0203
分类号:
基金项目:高等学校优秀青年教师教学科研奖励计划和国家自然科学基金项目(40021101)联合资助.
Application of Satellite MODIS in Monitoring the Water Quality of Lake Chaohu
WU Min1,2,3, WANG Xuejun1,2,3
1.College of Environmental Sciences;2.Key Laboratory for Surface Processes, Ministry of Education;3.Peking University, Beijing 100871, P. R. China
Abstract:
Reliable, spatially covering and cost-efficient monitoring techniques of lakes are generally growing in importance as a consequence of increasing symptoms of the on-going entrophication process.The Moderate Resolution Imaging Spectrometer (MODIS) is significant in water monitoring because of free getting, high spectrum resolution and short observation periods.Lake Chaohu is one of the largest freshwater lakes of China and its pollution problem has attracted broad attentions.This research attempts to explore the possibility of predicting water quality using MODIS.In this paper, the water quality paxamelers such as the concentration of chlorophyll-a, suspended solids and secchi disk depth of Lake Chaohu have been studied.Simple regression and multivariate regression analysis were conducted to establish the relationship of water quality parameters with MODIS bands radiance.Results indicated that significant relationships were found between them (P<0.01).Bands 1-4 and 10-11 are very important in monitoring the water quality.
Key words:  MODIS  bands radiance  chlorophyll-a  suspended solids  secchi disk depth  Lake Chaohu
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