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基于液芯波导的船载CDOM测量系统的设计和航次考察
Authors
弓振斌
林耿锐
金贵娥
Publication date
1 January 2011
Publisher
Abstract
有色溶解有机物(CdOM)是海水中溶解有机物的主要成分之一,由于它强烈吸收紫外光和蓝光,对海洋的水色产生影响,是研究自然生态系统、水色遥感、水体碳循环的重要因素。实验设计并搭建了基于液芯波导(lCW)的CdOM测量系统。系统主要由光源、光纤、液芯波导流通池、蠕动泵和微型光谱仪构成。对九龙江河口近岸盐度0~30梯度范围内16个站位的表层水样进行采样,并用本系统进行现场分析,获得各个站位水样的吸收光谱,计算CdOM吸收系数A和指数拟合后的光谱斜率S与实验室CAry 100bIO分光光度计的测定结果比较。本系统所测A(355nM)的范围为0.52~2.47M--(-1),CAry100bIO测得A(355nM)的范围为平行样品0.47~2.45M--(-1)。现场与实验室测量所得吸收系数基本一致(r=0.96),说明本系统适用于海上船载分析测量CdOM的吸收光谱
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Last time updated on 16/06/2016