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A Chromophoric Dissolved Organic Matter (CDOM) Observatory
2010Abstract : The long-term goal of this project is to develop an understanding of coastal systems such that optical properties of complex coastal waters can be retrieved and predicted from remote sensing and modeling efforts. This project focuses on establishing a moderate-scale observatory to develop watershed and coastal ocean models and remote sensing
Yong Tian, G. B. Gardner, Robert F. Chen
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Formation of planktonic chromophoric dissolved organic matter in the ocean
Marine Chemistry, 2019Abstract Chromophoric dissolved organic matter (CDOM) is an important fraction of the marine carbon cycle that controls most light absorption and many photochemical and biological processes in the ocean. Despite its importance, the chemical basis for the formation of oceanic CDOM remains unclear.
Christopher L. Osburn +3 more
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Environmental Science and Technology
Tryptophan (Trp) and tyrosine (Tyr) are the primary precursors of protein-like components in dissolved organic matter. Phenolic compounds are ubiquitous in aquatic environments and are considered the main electron donor in chromophoric dissolved organic ...
Ruiya Zhou, Xu Zhang
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Tryptophan (Trp) and tyrosine (Tyr) are the primary precursors of protein-like components in dissolved organic matter. Phenolic compounds are ubiquitous in aquatic environments and are considered the main electron donor in chromophoric dissolved organic ...
Ruiya Zhou, Xu Zhang
semanticscholar +1 more source
Chemosphere, 2022
The formation quantum yields of photochemically produced reactive intermediates (PPRIs) by irradiated CDOM (in this study, Suwannee River Natural Organic Matter and Upper Mississippi River Natural Organic Matter) decrease with increasing irradiation ...
Federico Bacilieri +6 more
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The formation quantum yields of photochemically produced reactive intermediates (PPRIs) by irradiated CDOM (in this study, Suwannee River Natural Organic Matter and Upper Mississippi River Natural Organic Matter) decrease with increasing irradiation ...
Federico Bacilieri +6 more
semanticscholar +1 more source
Dark recovery of photodegraded chromophoric dissolved organic matter
Journal of Photochemistry and Photobiology A-Chemistry, 2016Abstract Aged samples of natural waters filtered with Whatman GFF filters had been irradiated with UVA radiation then stored in darkness and checked for changes in absorbance of chromophoric dissolved organic matter (CDOM). The recovery of absorbance (integrated within 250–600 nm wavelength range) of irradiated river water, lake water and seawater ...
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Photobleaching of chromophoric dissolved organic matter (CDOM) in rainwater
Journal of Atmospheric Chemistry, 2007Significant photodegradation of chromophoric dissolved organic matter (CDOM) in rainwater was observed after exposure to simulated sunlight. Fluorescence excitation emission spectra (EEMS) of precipitation revealed the presence of four major peaks all of which degraded upon photolysis with the greatest loss in the region characteristic of marine CDOM ...
Robert J. Kieber +3 more
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International Journal of Remote Sensing, 1999
Since CDOM can significantly influence the optical characteristics of Case II waters, we investigated potential sources of CDOM and DOC during a month-long mesocosm experiment. Nutrient additions resulted in a large phytoplankton bloom, followed by a rapid decline.
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Since CDOM can significantly influence the optical characteristics of Case II waters, we investigated potential sources of CDOM and DOC during a month-long mesocosm experiment. Nutrient additions resulted in a large phytoplankton bloom, followed by a rapid decline.
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Colored and Chromophoric Dissolved Organic Matter in Natural Waters
2012This chapter will give a general overview on the sources and nature of colored and CDOM, biogeochemical functions of CDOM, optical variables, chromophores in the CDOM, and the theory of CDOM absorbance in natural waters. Moreover, the controlling factors of CDOM that are most important in natural waters will be discussed.
Khan M. G. Mostofa +6 more
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Modeling the spectral shape of absorption by chromophoric dissolved organic matter
Marine Chemistry, 2004 A single exponential model of the form a g (λ)αe -s c λ was evaluated in the context of its application and interpretation in describing absorption by chromophoric dissolved organic matter (CDOM), a g , as a function of wavelength, λ. The spectral slope, s e , is often used as a proxy for CDOM composition, including the ratio of fulvic to humic acids ...
Michael S Twardowski +2 more
exaly +4 more sources
Environmental Pollution, 2020
Urban black-odor water (BOW) is a typical phenomenon seen in the urban water environment; it is caused by excessive pollution by organic matter and other pollutants, such as nitrogen and phosphorous.
S. Miao +8 more
semanticscholar +1 more source
Urban black-odor water (BOW) is a typical phenomenon seen in the urban water environment; it is caused by excessive pollution by organic matter and other pollutants, such as nitrogen and phosphorous.
S. Miao +8 more
semanticscholar +1 more source