Results 91 to 100 of about 3,954 (213)

CDOM Sources and Photobleaching Control Quantum Yields for Oceanic DMS Photolysis

open access: yesEnvironmental Science & Technology, 2016
Photolysis is a major removal pathway for the biogenic gas dimethylsulfide (DMS) in the surface ocean. Here we tested the hypothesis that apparent quantum yields (AQY) for DMS photolysis varied according to the quantity and quality of its photosensitizers, chiefly chromophoric dissolved organic matter (CDOM) and nitrate.
Martí Galí   +12 more
openaire   +5 more sources

Delineating bio-optical characteristics to enhance spatial-based quantification of CDOM in clear to turbid waters

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Accurate remote sensing estimates of inland water colored dissolved organic matter (CDOM) are dramatically challenged by the dynamics of bio-optical characteristics, in which water biochemical driving mechanisms are particularly complex and highly ...
Jiale Jin   +6 more
doaj   +1 more source

SPATIAL DISTRIBUTION AND THE POSSIBLE SOURCE OF CDOM FOR INLAND WATER IN SUMMER IN THE NORTHEAST CHINA

open access: yes, 2010
The availability of underwater light is a critical factor in the growth and abundance of primary producers in shallow embayments. The aim of this study was to examine the spatial distribution and the possible source of CDOM for inland water in summer in ...
Liu Dianwei   +3 more
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Chromophoric dissolved organic matter (CDOM) in first-year sea ice in the western Canadian Arctic

open access: yes, 2014
We monitored the spatiotemporal progression of chromophoric dissolved organic matter (CDOM) in first-year sea ice in the western Canadian Arctic between mid-March and early July 2008.
Zhang, Yong(3)   +4 more
core   +1 more source

Seasonal dynamics in dissolved organic matter, hydrogen peroxide, and cyanobacterial blooms in Lake Erie

open access: yesFrontiers in Marine Science, 2016
Hydrogen peroxide (H2O2) has been suggested to influence cyanobacterial community structure and toxicity. However, no study has investigated H2O2 concentrations in freshwaters relative to cyanobacterial blooms when sources and sinks of H2O2 may be ...
Rose M. Cory   +11 more
doaj   +1 more source

Terrestrial CDOM in lakes of Yamal Peninsula

open access: yes, 2018
In this study, we analyze interactions in lake and lake catchment systems of a continuous permafrost area. We assessed colored dissolved organic matter (CDOM) absorption at 440 nm (a(440)(CDOM)) and absorption slope (S300-500) in lakes using field sampling and optical remote sensing data for an area of 350 km(2) in Central Yamal, Siberia.
Dvornikov, Yury   +10 more
openaire   +2 more sources

Characterizing CDOM Spectral Variability Across Diverse Regions and Spectral Ranges

open access: yes, 2018
Satellite remote sensing of colored dissolved organic matter (CDOM) has focused on CDOM absorption (aCDOM) at a reference wavelength, as its magnitude provides insight into the underwater light field and large-scale biogeochemical processes.
Mouw, Colleen B.   +6 more
core   +1 more source

Colored Dissolved Organic Matter (CDOM) Workshop summary

open access: yes, 2007
The Charlotte Harbor NEP hosted a 2-day technical exchange workshop on CDOM as an imperative first step in implementation of the program’s numeric water quality targets to initiate a dialogue with local researchers and resource managers on the importance
Corbett, Catherine A.
core  

Linear relationships between the CDOM absorption coefficient a(254) and the fluorescence intensity for three fluorescence components for WDA (a–c) and PDA (d–f) CDOM.

open access: yes, 2013
Linear relationships between the CDOM absorption coefficient a(254) and the fluorescence intensity for three fluorescence components for WDA (a–c) and PDA (d–f) CDOM.
Boqiang Qin (331589)   +5 more
core   +1 more source

The Study on Optical Characteristics of CDOM in Sediment Pore Waters and Photochemistry of CDOM in Estuarine Waters [PDF]

open access: yes, 2007
海洋有色溶解有机物(CDOM)作为溶解有机物(DOM)的主要成分及海洋碳循环的关键环节,近年来受到海洋学家的广泛重视。本论文围绕海洋CDOM的两个潜在来源——沉积物的再悬浮作用与雨水输入,以及一个关键的去除途径——光化学降解展开研究,利用最新的三维荧光光谱(EEMs)分析手段,结合吸收光谱以及溶解有机碳(DOC)的测定,分析了中国华南地区河口近海沉积物间隙水中CDOM的光学特性及底质再悬浮作用作为海水中CDOM来源的可能性;在国内首次观测了雨水中CDOM的荧光光谱特征 ...
程远月
core  

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