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海水黄色物质光吸收特性实验研究
吴永森, 张士魁, 张绪琴, 夏达英, 吴隆业, 郑建民
国家海洋局第一海洋研究所

摘要:

实验测量了干样配制的不同浓度黄色物质水溶液、实验室藻类培养液和胶州湾水域黄色物质水样的光吸收特性。测量结果表明，海水黄色物质光吸收系数与波长是单调变化关系，即不存在“波峰”和“波谷”；在蓝紫光波段，海水黄色物质光吸收比海水自身、海洋叶绿素和悬浮粒子光吸收大，它是海洋中对该波段光吸收起着主导作用的物质；海水黄色物质光吸收系数与波长呈指数函数关系，其指数斜率S数值范围分别为：胶州湾水域在0.0131—0.0180nm^-1，实验室配制、培养样品是在0.0105—O.O139nm^-1。该研究为海水黄色物质含量的遥感探测提供了基础性实验依据。

关键词: 海水黄色物质, 光吸收, 实验研究

DOI：

分类号:

基金项目:国家自然科学基金资助项目，4978605号

EXPERIMENTAL STUDY ON THE OPTICAL ABSORPTION PROPERTY OF YELLOW SUBSTANCE IN SEAWATER

WU Yong-Sen, ZHANG Shi-Kui, ZHANG Xu-Qin, XIA Da-Ying, W U Long-Ye, ZHENG Jian-Min

First Institute of Oceanography，State Oceanic Administration

Abstract:

The research is one of series study on yellow substance in seawater. The yellow substance from typical sea waters in Jiaozhou Bay，different concentration of yellow substance and algae filtrate are measured. A rule on its optical absorption is acquired. The relation of its optical absorption coefficient with light wave length is that a(λ ) = a(λ₀ )×exp[-S×(λ - λ₀)]. There are no “peak” and “trough” in the relation. The values S range from 0.O131nm^-1 to 0.0180nm^-1 in Jiaozhou Bay, from 0.0105nm^-1 to 0.O137nm^-1 in Various Concentrate an d algae filtrate without relation to a(λ₀ ). The study also show the yellow substance is one of main light absorption substance in sea water on blue and ultraviolet wavebands. Therefore it set up a theoretical base for detecting yellow substance in seawater by remote sensing.

Key words: Seawater yellow substance, Optical absorption, Experimental study

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