Preliminary investigation on water quality parameters in different area of Taihu Lake based on in-situ measurements
- 作者：Xi hongyanZhang yuanzhiDuan hongtao
- 会议时间：2009-11-01
- 关键词：Water quality parameters ; Optically shallow water ; Optically deep water ; Remote sensing reflectance ; Taihu Lake
- 作者单位：Xi hongyan,Zhang yuanzhi(Institute of Space and Earth Information Science,The Chinese University of Hong Kong,N.T.,Hong Kong S.A.R)Duan hongtao(Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing,P.R.China,210008)
- 母体文献：第十三届世界湖泊大会论文集
- 会议名称：第十三届世界湖泊大会
- 会议地点：武汉
- 主办单位：中国环境科学学会
- 语种：chi
摘要
A comprehensive investigation on water quality of Taihu Lake was conducted in October 2008.Upon the in-situ measured data obtained from the cruise,primary research on some important water quality parameters has been done in this paper.Firstly,Taihu Lake was divided into optically shallow water area and optically deep water area based on the water depth and transparency data.As two important water-quality parameters,chlorophyll a concentrations(CHL) and total suspended matter(TSS) concentrations were used to develop proper estimation algorithms by using in-situ remote sensing reflectance(Rrs).Results show that TSS can be estimated by several empirical model including three-band,two-band and single band model with little influence by the depth and aquatic vegetation.Two-band model for CHL estimation shows great deviation in optically shallow water area,but gives better results in optically deep water area.Primary research gives us elaborate description on water of Taihu Lake and also founds solid basis to perform further study on water quality parameters estimation algorithms in future.