%0 Journal Article
%T Using rem ote sensed data and G IS technique to estimate surface chlorophyll-a of Chaohu Lake
%A Cheng Chengqi
%A Yin Chengqing
%J 环境科学学报(英文版)
%D 1992
%I 
%X The thematic mapper(TM)images from Landsat-V satellite are characterized by a short acquired period(16 days per cycle)，and high spatial and spectral resolution．It is cheap and convenient to establish a dynamic monitoring system for water quality in large lakes by combining TM image data and measured data with a chemical method．In this paper the TM image digitized and GIS technology have been used to acquire digital remote sensing data．At the time the TM image were taken，samples ofchlorophyll-afrom the surface water of Chaohu Lake were colleeted and analyzed．Comparing the TM image digitized data with the measured ehlorophyll-a data，the relationships have been found and quantitative models have been established．Applying the model as supported by a GIS，the map ofchlorophyll-a distribution in the surface of Chaohu Lake has been produced．The average concentration of surface chlorophyll-a of Chaohu Lake is calculated．
%K chlorophyll-a
%K Chaohu
%K Lake
%K remote
%K sensing．
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=99B816C6E87E8389C6A0EE27AC84A48B&yid=F53A2717BDB04D52&vid=E158A972A605785F&iid=0B39A22176CE99FB&sid=0401E2DB1F51F8DE&eid=AA76E167F386B6B3&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=0&reference_num=0