Results 61 to 70 of about 554 (171)

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

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

Chromophoric dissolved organic matter (CDOM) in first-year sea ice in the western Canadian Arctic [PDF]

Marine Chemistry, 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. CDOM abundance in bottom ice, as quantified by absorption coefficient at 325 nm, a(CDOM)(325), showed a positive, linear relationship with the concentration of ...
Huixiang Xie, Cyril Aubry, Yong Zhang, Guisheng Song   +3 more
openaire   +1 more source

The role of wind and buoyancy forcing on mixed layer depths and productivity on the Chatham Rise from ocean glider and ship‐based observations

New Zealand Journal of Marine and Freshwater Research, Volume 59, Issue 5, Page 1350-1370, December 2025.
ABSTRACT The Subtropical Front (STF) and associated biological productivity are topographically locked to the Chatham Rise. Year‐to‐year differences of upper ocean dynamics and associated responses of phytoplankton are valuable for understanding variability in fisheries biomass as well as providing new knowledge of environmental condition for potential
Charine Collins, Joe O’Callaghan, Malcolm R. Clark, Scott D. Nodder   +3 more
wiley   +1 more source

Characterization of light absorption by chromophoric dissolved organic matter (CDOM) in the upper layer of the Red Sea [PDF]

Deep Sea Research Part I: Oceanographic Research Papers, 2018
The authors express their gratitude to the scientists, officers and crews of the research vessel Thuwal and the Coastal and Marine Resources Core Lab for logistical support and assistance onboard during the fieldwork. V. Vellucci, E. Organelli and E. Boss are cordially thanked for their advice and valuable discussions of the results presented here.
Kheireddine, Malika, Ouhssain, Mustapha, Calleja Cortes, Maria de Lluch, Moran, Xose Anxelu G., Sarma, Y.V.B, Tiwari, Surya Prakash, Jones, Burton   +6 more
openaire   +2 more sources

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

Selective accumulation of dissolved organic matter in the sea surface microlayer: integrated multi-spectral CDOM and FDOM characterization and a novel FDOM/CDOM index at a Mediterranean coastal site [PDF]

Biogeosciences
The aims of this work are: (i) To understand potential transformations and dynamics within the broad chromophoric dissolved organic matter (CDOM) pool in the sea surface microlayer (SML) and the underlying water (ULW) at a Mediterranean coastal site ...
E. Pitta, E. Tzempelikou, C. Zeri
doaj   +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

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

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