Chromophoric Dissolved Organic Matter (CDOM) as an Indicator for Studying Carbon Cycle in the Northern Bay of Bengal
Journal Title: International Journal of Oceanography & Aquaculture - Year 2018, Vol 2, Issue 1
Abstract
The dissolved organic matter (DOM) is one of the largest pools of organic carbon in aquatic environments. In the coastal, estuarine and riverine waters, the DOM is dominated by dissolved soil organic matter and anthropogenic inputs [1, 2]. The Chromophoric dissolved organic matter (CDOM) is operationally defined as that component of the total DOM of the hydrosphere that absorbs light over a broad range of UV (UV-A: 315 to 400 nm; UV-B: 280 to 315) and Visible region (400 - 750 nm). The CDOM is optically measurable. It contributes significantly to the global carbon cycle. The CDOM of terrestrial origin to the coastal sea is mainly from breakdown of terrestrial plants, human activities such as logging, agriculture, effluent, discharge, and wetland drainage and detritus transported through fresh water and estuarine systems [3]. In the coastal and estuarine systems, where CDOM is higher than in offshore regions, it is therefore particularly important to identify the sources and sinks of CDOM in order to gain an understanding of the biogeochemical processes or carbon cycle in which CDOM is involved either or indirectly [4].
Authors and Affiliations
Das S, Hazra S
Keywords
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- EP ID EP464081
- DOI 10.23880/ijoac-16000129
- Views 86
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