Absorption Features of chromophoric dissolved organic matter (CDOM) and Tracing Implication for dissolved organic matter (DOC) in Changjiang Estuary,China
Chromophoric dissolved organic matter (CDOM) represents the light absorbing fraction of dissolved organic carbon (DOC).The optical properties of CDOM are potentially used as a tracer of DOC in coastal zone,and thus permit remote sensing of DOC.In this study,samples were collected from 4 cruises around Changjiang Estuary.Both CDOM absorption coefficient at wavelength (a( λ )) and absorption spectral slop ( Sg ) display conservative behavior,suggesting that the controlling factors of distribution of CDOM is the conservative diffusion of Changjiang Diluted Water and Sg is better than a(λ) to express index absorption attenuation degree.Inversion model of DOC demonstrates that CDOM optical properties are potential indices for the routine or near time monitoring DOC concentration from space which may open a door to an estimation of land source DOC input budget to East China Sea.
Changjing Estuary CDOM absorption DOC Sources tracing
Zhang Xiaoyu Chen Xin Deng Han Jin Haiyan
Department of Earth Science, Zhejiang University, Hangzhou 310027, China Laboratory of Marine Ecosystem and Biogeochemistry, the Second Institute of Oceanography, SOA, Hangz
国际会议
The 17th Pacific -Asian Marginal Seas Meeting(第十七届太平洋与亚洲边缘海国际会议)
杭州
英文
199-206
2013-04-23（万方平台首次上网日期，不代表论文的发表时间）