摘要
基于2004年秋季在太湖进行的一次大范围水体吸收系数、散射系数、辐照度比等生物光学特性及光学活性物质浓度的测定和计算,分析了秋季太湖光学活性物质浓度的空间分布特征以及水体生物光学特性,并在此基础上发展了内陆浅水湖泊非色素颗粒物、浮游植物色素和有色可溶性有机物(chromophoric dis-solved organic matter,CDOM)的半分析模型。
Based on an investigation with 67 samplings from Taihu Lake in the autumn of 2004, the bio-optical properties including absorption coefficient, backscattering coefficient and irradiance reflectance just beneath the water surface, and the concentrations of the optically active substances are measured and calculated. Semi-analytical retrieval models of three optically active substances （tripton, phytoplankton pigment and CDOM） are developed using bio-optical model. Significant spatial differences are found for the concentrations of three optically active substances suggesting the spatial heterogeneous in the large shallow lake. The estimation models adequately predict tripton, phytoplankton pigment concentrations, and CDOM absorption in well-mixed and optically complex water in the Taihu Lake,
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2008年第9期967-972,共6页
Geomatics and Information Science of Wuhan University
基金
中国科学院知识创新工程方向性资助项目(KZCX2-YW-419)
国家自然科学基金资助项目(40671138)
中国科学院优秀博士学位论文
院长奖获得者科研启动专项资金资助项目
中国科学院南京地理与湖泊研究所所长科研基金资助项目
关键词
太湖
光学活性物质
吸收系数
后向散射系数
水面下辐照度比
Taihu Lake
optically active substance
absorption coefficient
backscattering coefficient
irradiance reflectance just beneath the water surface
