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引用本文:郝景燕,马荣华,段洪涛,张寿选.太湖水体吸收分解(Ⅰ):悬浮颗粒与浮游植物色素的分离.湖泊科学,2010,22(3):337-348. DOI:10.18307/2010.0305
HAO Jingyan,MA Ronghua,DUAN Hongtao,ZHANG Shouxuan.The absorption spectral decomposition of water in Lake Taihu,China(I):the decom-position of absorption due to suspend particulate matter and due to phytoplankton pig-ment. J. Lake Sci.2010,22(3):337-348. DOI:10.18307/2010.0305
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太湖水体吸收分解(Ⅰ):悬浮颗粒与浮游植物色素的分离
郝景燕1,2, 马荣华1, 段洪涛1, 张寿选1,2
1.中国科学院南京地理与湖泊研究所, 南京 210008;2.中国科学院研究生院, 北京 100049
摘要:
以2008年10月太湖实测数据为基础,用改进的指数函数和线性法拟合非色素颗粒物吸收和浮游植物色素吸收,根据二者的加和关系,建立总悬浮颗粒物吸收分解模型,依据参量的不同,分别构建了两个分解模型(Mod-4和Mod-5),两者都可以较好的分解出太湖水体浮游植物色素吸收和非色素颗粒物吸收,但Mod-5的拟合精度稍高于Mod-4.研究结果对于进一步探索和建立太湖区域生物光学模型,精确反演水质参数具有一定意义.
关键词:  太湖  吸收分解  悬浮颗粒  浮游植物色素  非色素颗粒
DOI:10.18307/2010.0305
分类号:
基金项目:中国科学院知识创新工程方向性项目(KZCX2-YW-QN311)、中国科学院知识创新工程重大项目(KZCX1-YW-14-3);国家自然科学基金项目(40871168,40801137);水专项课题(2008ZX07101-014-01)联合资助
The absorption spectral decomposition of water in Lake Taihu,China(I):the decom-position of absorption due to suspend particulate matter and due to phytoplankton pig-ment
HAO Jingyan1,2, MA Ronghua1, DUAN Hongtao1, ZHANG Shouxuan1,2
1.Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China;2.Graduate School of the Chinese Academy of Sciences, Beijing 100049, P. R. China
Abstract:
Based on the data measured in site in Iake Taihu in October 2008,two models, namely, Modes with five unknown pa-rameters and Mod-5 with two unknown parameters, were developed to decompose the absorption due to suspend particulate matter (SPM ) into absorptions due to phytoplankton pigment and non-pigment particulate absorption. The result showed that both of the models were good for the accurate decomposition. But Mod-5 was better than Modes and Mod-5 can be preferentially recommended,which was helpful to develop an appropriable and applicable bio-optical model for retrieval of water quality parameter in Lake Taihu.
Key words:  Lake Taihu  absorption decomposition  suspend particulate matter  phytoplankton pigment  non-pigment particulate matter
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