Absorption properties of chromophoric dissolved organic matter (CDOM) in the East China Sea and the waters off eastern Taiwan

The absorption properties of chromophoric dissolved organic matter (CDOM) in the East China Sea (ECS) and the waters off eastern Taiwan (WET) were studied during May 2014. CDOM absorption coefficient (a(280)) and spectral slope (S275-295) revealed considerable spatial variations. In the ECS, the val...

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Bibliographic Details
Published in:Continental Shelf Research
Main Authors: Zhou, Fengxia, Gao, Xuelu, Song, Jinming, Chen, Chen-Tung Arthur, Yuan, Huamao, Xing, Qianguo
Format: Report
Language:English
Published: PERGAMON-ELSEVIER SCIENCE LTD 2018
Subjects:
Colored dissolved organic matter
Optical properties
Biogeochemical cycling
Water mass tracing
East China Sea
Marginal Sea
Oceanography
MIDDLE ATLANTIC BIGHT
WESTERN ARCTIC-OCEAN
PEARL RIVER ESTUARY
FLUORESCENCE PROPERTIES
OPTICAL-PROPERTIES
LIGHT-ABSORPTION
BEAUFORT SEA
SPECTRAL CHARACTERISTICS
TEMPORAL VARIABILITY
SEASONAL DYNAMICS
Arctic
Arctic Ocean
Beaufort Sea
Phytoplankton
Online Access:http://ir.qdio.ac.cn/handle/337002/158991
https://doi.org/10.1016/j.csr.2018.03.005
Description
Summary:The absorption properties of chromophoric dissolved organic matter (CDOM) in the East China Sea (ECS) and the waters off eastern Taiwan (WET) were studied during May 2014. CDOM absorption coefficient (a(280)) and spectral slope (S275-295) revealed considerable spatial variations. In the ECS, the values of a(280) and S275-295 presented a reverse distribution pattern. In the WET, a(280) values were generally low while S275-295 values were generally high. Vertical distributions of a(280) and S275-295 also varied in different regions. Terrestrial input, phytoplankton production, sediment release or photobleaching may be responsible for the dynamics of CDOM. Relationships among CDOM related parameters could partly support this conclusion. a(280) were also used to trace different water masses and the result showed that the influence of Changjiang Diluted Water could reach the outer shelf of the northern ECS, and that the Kuroshio Current had a strong influence on the middle shelf of the southern ECS.

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