Results 51 to 60 of about 3,446 (216)

The optics of chromophoric dissolved organic matter (CDOM) in the Greenland Sea: An algorithm for differentiation between marine and terrestrially derived organic matter [PDF]

open access: yesLimnology and Oceanography, 2001
The optics of chromophoric dissolved organic matter (CDOM) in the Greenland Sea were investigated and compared to results from earlier studies in the Southeastern North Sea. Absorption at 375 nm (a375) in the Greenland Sea varied from 0.77 m−1 to the detection limit of our instrument (0.05 m−1), with the highest values found during summer. The spectral
Stedmon, Colin   +1 more
openaire   +2 more sources

Distribution and source‐sink dynamics of H2 in the Western Tropical Pacific and their response to La Niña–induced upwelling

open access: yesLimnology and Oceanography Letters, Volume 11, Issue 3, May 2026.
Abstract Hydrogen (H2) influences the climate by prolonging the lifetime of greenhouse gases via consuming hydroxyl radicals. Despite the ocean's crucial role in regulating atmospheric H2, its marine biogeochemical cycle is poorly constrained. To bridge this gap, our research in the Western Tropical Pacific Ocean (WTPO) revealed a north–south ...
Yu‐Cheng Jiang   +7 more
wiley   +1 more source

Revisiting the disappearance of terrestrial dissolved organic matter in the ocean: a δ13C study [PDF]

open access: yesBiogeosciences, 2014
Organic carbon (OC) depleted in 13C is a widely used tracer for terrestrial organic matter (OM) in aquatic systems. Photochemical reactions can, however, change δ13C of dissolved organic carbon (DOC) when chromophoric, aromatic-rich terrestrial OC is ...
K. Lalonde   +2 more
doaj   +1 more source

Physical, Biochemical and Biological Characterization of Two Opposite Areas in the Southern Adriatic Sea (Mediterranean Sea) [PDF]

open access: yes, 2013
The Drini and Manfredonia Gulfs were investigated in May 2008 and April 2009, respectively. The gulfs are located in the South Eastern (Gulf of Drini) and South Western (Gulf of Manfredonia) Adriatic Sea.
Cabrini, M.   +6 more
core   +1 more source

Reactivity of chromophoric dissolved organic matter (CDOM) to sulfate radicals: Reaction kinetics and structural transformation

open access: yesWater Research, 2019
Sulfate radical (SO4•-) has been extensively studied as a promising alternative in advanced oxidation processes (AOPs) for water treatment. However, little is known about its reactivity to the ubiquitous dissolved organic matter (DOM) in water bodies.
Zhang, Suona   +3 more
openaire   +4 more sources

Glacial Meltwater Promotes Biological Productivity and Subsequent Dissolved Organic Carbon Accumulation in the Eastern Ross Sea: Evidence From the Austral Summer of 2023

open access: yesGlobal Biogeochemical Cycles, Volume 40, Issue 3, March 2026.
Abstract The Ross Sea, a critical region for global carbon cycling, receives increasing glacial meltwater from West Antarctica, yet the impact on regional carbon cycling remains poorly understood. A key uncertainty is how this meltwater influences dissolved organic matter (DOM), particularly in the historically inaccessible eastern Ross Sea. This study
Juyoung Son   +13 more
wiley   +1 more source

Photo-lability of deep ocean dissolved black carbon [PDF]

open access: yes, 2012
Dissolved black carbon (DBC), defined here as condensed aromatics isolated from seawater via PPL solid phase extraction and quantified as benzenepolycarboxylic acid (BPCA) oxidation products, is a significant component of the oceanic dissolved organic ...
A. Stubbins, J. Niggemann, T. Dittmar
core   +1 more source

Satellite Solutions: Facing Chlorophyll‐a Retrieval in Small Mountain Lakes in the Sierra Nevada, Spain

open access: yesWater Resources Research, Volume 62, Issue 3, March 2026.
Abstract National and international regulations enforce monitoring programmes of water quality to guide management actions of inland water ecosystems. Our study evaluates the effect of spectral and spatial resolutions on the estimation of chlorophyll‐a concentrations in mountain lakes, and derives implications for addressing the adjacency effect, which
J. Llodrà‐Llabrés   +5 more
wiley   +1 more source

Terrestrial dissolved organic matter distribution in the North Sea [PDF]

open access: yes, 2018
The flow of terrestrial carbon to rivers and inland waters is a major term in the global carbon cycle. The organic fraction of this flux may be buried, remineralized or ultimately stored in the deep ocean. The latter can only occur if terrestrial organic
Evans, CD   +6 more
core   +2 more sources

Satellite Data Trace Seasonal Freshwater Dispersion in Hudson and James Bays

open access: yesGeophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Freshwater dispersal controls stratification, circulation, and biogeochemical processes in Hudson and James Bay (HJB); however, limited field observations hinder understanding of how different freshwater types drive change. This study uses Aqua‐Moderate Resolution Imaging Spectroradiometer and Soil Moisture and Ocean Salinity‐Microwave Imaging
Atreya Basu   +9 more
wiley   +1 more source

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