Absorption coefficient of CDOM in Zhejiang coastal waters

Guannan Fan; Zhihua Mao; Peng Chen; Haiqing Huang

doi:10.1117/12.2022725

24 September 2013 Absorption coefficient of CDOM in Zhejiang coastal waters

Guannan Fan, Zhihua Mao, Peng Chen, Haiqing Huang

Proceedings Volume 8869, Remote Sensing and Modeling of Ecosystems for Sustainability X; 88690U (2013) https://doi.org/10.1117/12.2022725
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

Chromophoric dissolved organic matter (CDOM) exists in all natural waters. Researches on optical properties of CDOM play an important role in ocean color remote sensing retrieval. The optical properties of CDOM in Zhejiang coastal waters were investigated from August 18, 2009 to June 9, 2011 covering four seasons. Based on the measured data, the distribution of the absorption coefficient of CDOM was analyzed. The results showed that absorption coefficient at 440 nm (a(440)) decreased with the offshore direction, and the relatively high value of a(440) was observed generally in the coastal waters and low value in the adjacent waters. The distribution reflected the terrigenous origin characteristics of CDOM. The relationship between salinity and a(440) of the four seasons was discussed. The results demonstrated that a(440) had a significant negative linear relationship with the salinity. That is to say, CDOM took on the conservative behavior in the research region.

Citation Download Citation

Guannan Fan, Zhihua Mao, Peng Chen, and Haiqing Huang "Absorption coefficient of CDOM in Zhejiang coastal waters", Proc. SPIE 8869, Remote Sensing and Modeling of Ecosystems for Sustainability X, 88690U (24 September 2013); https://doi.org/10.1117/12.2022725

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