湖泊科学2013，Vol.25Issue(4)：497-504,8.
长江中下游大型湖泊水体固有光学特性:Ⅰ.吸收
Inherent optical properties of large lakes in the middle-lower reaches of the Yangtze River: Ⅰ.Absorption
摘要
Abstract
Absorption coefficient has important scientific significance,acting as not only an important part of the inherent optical properties of waters,but also as the physical basis to build a bio-optical model.In this paper,dominant types of waters' absorption coefficient were classified and analyzed with the method of "Remote Sensing of Ocean Colour in Coastal,and Other Optically-Complex,Waters (IOCCG) " based on the in situ measurements during the period of 2008-2011 of three freshwater lakes (Lake Poyang,Lake Taihu and Lake Chaohu) in the middle-lower reaches of the Yangtze River.Because of the spectrals of ad (non-pigment particles absorption),aph (phytoplankton pigment absorption),ag (colored dissolved organic matter absorption) are greatly different,we consolidated the dominant types of IOCCG as type ad-g and type aph-related.Results show that:1) In autumn,the dominant type of Lake Poyang,Lake Taihu and Lake Chaohu is ad,ad-ag,ad-aph-ag,respectively; In summer,Lake Poyang and Lake Taihu are co-leaded by two dominant types,they are ad,ad-ag and a d-aph-ag,ad-aph.2) Both dominant-type in summer,autumn of Lake Poyang and in autumn of Lake Taihu are ad-g ; however,Lake Taihu in summer and Lake Chaohu in autumn have the aph-related dominant-type.3) For the Gons and Gitelson algorithms and their assumptions,the applicability conditions are found inconsistency in different lake water and different dominant types.关键词
水色遥感/固有光学特性/吸收系数/主导类型Key words
Water color remote sensing/IOPs/absorption coefficient/dominant-type引用本文复制引用
王长凤,段洪涛,马荣华,张玉超..长江中下游大型湖泊水体固有光学特性:Ⅰ.吸收[J].湖泊科学,2013,25(4):497-504,8.基金项目
中国科学院知识创新工程重要方向性项目(KZCX2-EW-QN308)、国家自然科学基金项目(40801137,40871168)和中国科学院南京地理与湖泊研究所"一三五"项目(NIGLAS2012135014,NIGLAS2012135010)联合资助 （KZCX2-EW-QN308）
