Results 71 to 80 of about 3,446 (216)

Optical Properties and Photochemical Transformation of the Dissolved Organic Matter Released by Sargassum

Frontiers in Marine Science, 2020
Chromophoric dissolved organic matter (CDOM) is the dominant absorber of ultraviolet radiation in the ocean, but its sources within the ocean, as well as its chemical composition, remain uncertain.
Leanne C. Powers, Rossana Del Vecchio, Neil V. Blough, Natasha McDonald, Natasha McDonald, Philippe Schmitt-Kopplin, Philippe Schmitt-Kopplin, Philippe Schmitt-Kopplin, Michael Gonsior   +8 more
doaj   +1 more source

Marine CDOM accumulation during a coastal Arctic mesocosm experiment: No response to elevated pCO2levels [PDF]

, 2014
A large-scale multidisciplinary mesocosm experiment in an Arctic fjord (Kongsfjorden, Svalbard; 78°56.2′N) was used to study Arctic marine food webs and biogeochemical elements cycling at natural and elevated future carbon dioxide (CO2) levels.
Bellerby, Richard G. J., Brussaard, Corina P.D., Engel, Anja, Granskog, Mats A., Pavlov, Alexey K., Schulz, Kai G., Silyakova, Anna   +6 more
core   +1 more source

The impact of high rainfall events on the submesoscale salinity field in a coastal sea: Greater Cook Strait, New Zealand

New Zealand Journal of Marine and Freshwater Research, Volume 59, Issue 4, Page 735-761, December 2025.
ABSTRACT River inflow into the coastal oceanic environment can result in low salinity submesoscale features (LSMFs). The enhanced water column stability sustained within these coherent structures affects local biological productivity. With‐event and seasonal variability of LSMFs were investigated in a coastal sea — Greater Cook Strait — that is ...
Khushboo Jhugroo, Joanne M. O'Callaghan, Craig L. Stevens   +2 more
wiley   +1 more source

The Contribution of Methane Photoproduction to the Oceanic Methane Paradox

Geophysical Research Letters, 2020
Although methanogenesis is considered a strictly anaerobic process, oxygen‐replete surface open‐ocean waters are usually supersaturated with methane (CH4), a phenomenon termed the oceanic methane paradox.
Y. Li, C. G. Fichot, L. Geng, M. G. Scarratt, H. Xie   +4 more
doaj   +1 more source

Los aportes de aerosoles afectan las propiedades ópticas de la materia orgánica disuelta en las aguas costeras del Mediterráneo Noroccidental [PDF]

, 2017
10 pages, 6 figures, 1 table[EN] Aeolian inputs of organic and inorganic nutrients to the ocean are important as they can enhance biological production in surface waters, especially in oligotrophic areas like the Mediterranean.
Aparicio, Francisco Luis, Conan, Pascal, Fernández-González, L., Marrasé, Cèlia, Marín, Isabel, Nunes, Sdena, Peters, Francesc, Pujo-Pay, Mireille, Sanchez-Perez, Elvia D.   +8 more
core   +1 more source

Predicting Dissolved Black Carbon Concentration From Chromophoric Dissolved Organic Matter Along the Land‐Ocean Continuum

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract Dissolved black carbon (DBC) plays a key role in global carbon cycle and pollutant transport. However, the time‐consuming and labor‐intensive chemical analysis limits its spatiotemporal resolution. Here, we developed models to predict DBC from chromophoric dissolved organic matter (CDOM) measurements across the land‐to‐ocean continuum.
Hongyan Bao, Yuanbi Yi, Weiqiang Zhao, Jutta Niggemann, Julian Merder, Keyuan Li, Shuwen Li, Lejin Peng, Xiaoqian Zhan, Ziming Fang, Weifeng Yang, Penghui Li, Ding He, Thorsten Dittmar, Shuh‐Ji Kao   +14 more
wiley   +1 more source

Saltmarshes as a source of chromophoric dissolved organic matter (CDOM) to Southern California coastal waters

Limnology and Oceanography, 2008
To determine chromophoric dissolved organic matter (CDOM) sources in Southern California coastal waters, optical properties of a river outlet and adjacent tidally flushed salt marshes were monitored (dry season; June‐July 2001). Average absorption coefficients doubled at ebb vs. flood tides (4.8 ± 1.5 vs.
Clark, Catherine D., Litz, Liannea P., Grant, Stanley B.   +2 more
openaire   +3 more sources

Applications of QSPR and Machine Learning in Molecular Photonics

Advanced Optical Materials, Volume 13, Issue 33, November 25, 2025.
Quantitative structureproperty relationships (QSPR) and machine learning (ML) are transforming photochemistry by enabling pre‐synthetic screening of photoactive molecules. This review outlines advances in data‐driven discovery of optical materials and functional dyes, identifies effective descriptors and models for photophysical processes, and provides
Andrey A. Buglak, Platon P. Chebotaev, Mikhail A. Filatov   +2 more
wiley   +1 more source

Utilizing Colored Dissolved Organic Matter to Derive Dissolved Black Carbon Export by Arctic Rivers [PDF]

, 2015
Wildfires have produced black carbon (BC) since land plants emerged. Condensed aromatic compounds, a form of BC, have accumulated to become a major component of the soil carbon pool. Condensed aromatics leach from soils into rivers, where they are termed
A Jimenez, F Baetke, J Mann, JN Sørensen, M Calaf, M Calaf, N Troldborg, Y Wu   +7 more
core   +1 more source

Linking Land Use, Seasonal Variation and Water Quality Through Dissolved Organic Matter Optical Properties in the Doce River Basin

Ecohydrology, Volume 18, Issue 7, October‐November 2025.
ABSTRACT Human activities such as agriculture, mining and urbanization have profoundly altered tropical river systems, yet conventional water quality indicators often fail to fully capture these impacts, especially in turbid waters. In the Doce River Basin, Southeast Brazil, the characterization of dissolved organic matter (DOM) through its optical ...
Carlos Magno Oliveira Tadeu, Diego Guimarães Florêncio Pujoni, André Megali Amado, Ludmila Silva Brighenti, Cristiane Freitas de Azevedo Barros, Lorena Torres Oporto, Daiana dos Reis Pelegrine, Gabriel Pereira, Francielle da Silva Cardozo, Stella Pereira Pacheco, Bianca Loureiro do Valle, Layla Mayer Fonseca, Thiago Marques Salgueiro, José Fernandes Bezerra‐Neto   +13 more
wiley   +1 more source