Results 221 to 230 of about 14,128 (260)

Comparison of optical properties of chromophoric dissolved organic matter (CDOM) in alpine lakes above or below the tree line: insights into sources of CDOM

Photochemical & Photobiological Sciences, 2015
Here we investigated absorption and fluorescence properties of chromophoric dissolved organic matter (CDOM) in 15 alpine lakes located below or above the tree line to determine its source and composition. The results indicate that the concentrations of CDOM in below-tree-line lakes are significantly higher than in above-tree-line lakes, as evidenced ...
Yaling, Su, Feizhou, Chen, Zhengwen, Liu
openaire   +2 more sources

Estimation of terrestrial humic-like substances in inland lakes based on the optical and fluorescence characteristics of chromophoric dissolved organic matter (CDOM) using OLCI images

Ecological Indicators, 2019
Terrestrial humic-like substances (Peak C), the main constituent of chromophoric dissolved organic matter (CDOM), which is one of the optically active constituents present in water, is a good indicator of the ecological statuses of global aquatic ...
S. Miao, Heng Lyu, Qiao Wang, Yunmei Li, Zhiming Wu, Chenggong Du, Jie Xu, Shun Bi, Meng Mu, Shaohua Lei   +9 more
semanticscholar   +1 more source

A Chromophoric Dissolved Organic Matter (CDOM) Observatory

2010
Abstract : 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
openaire   +1 more source

Optical Properties of Humic Substances and CDOM: Effects of Borohydride Reduction

Environmental Science & Technology, 2010
Treatment of Suwanee River humic (SRHA) and fulvic (SRFA) acids, a commercial lignin (LAC), and a series of solid phase extracts (C18) from the Middle Atlantic Bight (MAB extracts) with sodium borohydride (NaBH(4)), a selective reductant of carbonyl-containing compounds including quinones and aromatic ketones, produces a preferential loss of visible ...
Jiahai, Ma, Rossana, Del Vecchio, Kelli S, Golanoski, Erin S, Boyle, Neil V, Blough   +4 more
openaire   +2 more sources

Absorption characteristics of CDOM in treated and non-treated urban lakes in Changchun, China.

Environmental Research, 2019
In urban settings, one may find (i) lakes that are non-treated (NT) and impacted by recurrent discharges of pollutants and nutrients, and (ii) lakes that, through restoration measures and active management, are treated (T) from external inputs.
L. Lyu, Z. Wen, P. Jacinthe, Y. Shang, Ning Zhang, Ge Liu, C. Fang, Junbin Hou, K. Song   +8 more
semanticscholar   +1 more source

ASFit - An all-inclusive tool for analysis of UV-Vis spectra of colored dissolved organic matter (CDOM)

Computational Geosciences, 2019
The study of dissolved organic matter (DOM) in natural waters is hindered by its complex structure and low concentration. Spectroscopic methods (e.g. UV–Vis spectrometry) can be used for the characterization of its chromophoric fraction (CDOM) due to ...
D. Omanović, C. Santinelli, S. Marcinek, M. Gonnelli   +3 more
semanticscholar   +1 more source

Investigation of Coastal CDOM Distributions Using In-Situ and Remote Sensing Observations and a Predictive CDOM Fate and Transport Model

2008
Abstract : Our long-term goal is to interprete chromophoric dissolved organic matter (CDOM) sources, distributions, and dynamics in and around the NY/NJ Harbor Estuary, with a focus on significant freshwater events, through the creation of a robust, deterministic, high-resolution, four-dimensional, predictive model of CDOM fate and transport, validated
openaire   +1 more source

Importance of CDOM Distribution and Photoreactivity in a Shallow Texas Estuary

Estuaries and Coasts, 2009
This study examined freshwater discharge of dissolved organic matter (DOM) to the shallow Lavaca–Matagorda (LM) Bay estuarine system along the central Texas coast and investigated whether chromophoric DOM (CDOM) photochemical reactions have the potential to stimulate microbial activity within LM estuarine waters.
Shank, G. Christopher, Nelson, Kevin, Montagna, Paul A.   +2 more
openaire   +1 more source

[Spatial Distribution and Degradation of CDOM in the Minjiang River in Summer].

Huan jing ke xue= Huanjing kexue, 2019
The composition, distribution, and degradation of chromophoric dissolved organic matter (CDOM) in the lower reach and estuary of the Minjiang River were analyzed using fluorescence excitation-emission matrices-parallel factor analysis (EEMs-PARAFAC) and microbial and photochemical degradation experiments.
Qiong, Cheng, Wan-E, Zhuang, Hui, Wang, Wei, Chen, Li-Yang, Yang   +4 more
openaire   +2 more sources

Characteristics of colored dissolved organic matter (CDOM) in the Arctic outflow in the Fram Strait: Assessing the changes and fate of terrigenous CDOM in the Arctic Ocean

Journal of Geophysical Research: Oceans, 2012
Absorption coefficients of colored dissolved organic matter (CDOM) were measured together with salinity, δ18O, and inorganic nutrients across the Fram Strait. A pronounced CDOM absorption maximum between 30 and 120 m depth was associated with river and sea ice brine enriched water, characteristic of the Arctic mixed layer and upper halocline waters in ...
Granskog, M.A., Stedmon, C.A., Dodd, P.A., Amon, R.M.W., Pavlov, A.K., de Steur, L., Hansen, E.   +6 more
openaire   +2 more sources