Results 71 to 80 of about 554 (171)

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

Possible Effect of Climate Change on Surface-Water Photochemistry: A Model Assessment of the Impact of Browning on the Photodegradation of Pollutants in Lakes during Summer Stratification. Epilimnion vs. Whole-Lake Phototransformation

Molecules, 2020
Water browning in lakes (progressive increase of the content of chromophoric dissolved organic matter, CDOM) has the potential to deeply alter the photodegradation kinetics of pollutants during summer stratification.
Federico Calderaro, Davide Vione
doaj   +1 more source

Clarifying the trophic state concept to advance macroscale freshwater science and management

Ecosphere, Volume 16, Issue 9, September 2025.
Abstract For over a century, ecologists have used the concept of trophic state (TS) to characterize an aquatic ecosystem's biological productivity. However, multiple TS classification schemes, each relying on a variety of measurable parameters as proxies for productivity, have emerged to meet use‐specific needs.
Michael F. Meyer, Benjamin M. Kraemer, Carolina C. Barbosa, Davi G. F. Cunha, Walter K. Dodds, Stephanie E. Hampton, César Ordóñez, Rachel M. Pilla, Amina I. Pollard, Joshua A. Culpepper, Alexander K. Fremier, Tyler V. King, Robert Ladwig, Dina M. Leech, Shin‐Ichiro S. Matsuzaki, Isabella A. Oleksy, Simon N. Topp, R. Iestyn Woolway, Ludmila S. Brighenti, Kate C. Fickas, Brian P. Lanouette, Jianning Ren, Mortimer Werther, Xiao Yang   +23 more
wiley   +1 more source

Influence of Riverine Input on Norwegian Coastal Systems

Frontiers in Marine Science, 2020
Coastal ecosystems are of high ecological and socioeconomic importance and are strongly influenced by processes from land, sea, and human activities. In this study, we present physical, chemical, and biological observations over two consecutive years ...
Helene Frigstad, Helene Frigstad, Øyvind Kaste, Øyvind Kaste, Anne Deininger, Anne Deininger, Karsten Kvalsund, Guttorm Christensen, Richard G. J. Bellerby, Richard G. J. Bellerby, Kai Sørensen, Marit Norli, Andrew L. King   +12 more
doaj   +1 more source

An Integrated Sensor Network and Data Driven Approach to Satellite Remote Sensing of Dissolved Organic Matter

Earth and Space Science, Volume 12, Issue 9, September 2025.
Abstract Traditional remote sensing retrieval models for water quality have historically relied on limited, localized data sets due to the prohibitive costs of extensive field campaigns and logistical challenges of collecting match‐up data with satellite overpasses. As a result, these models often lack generalizability across seasons, tides, and sites.
Dulcinea M. Avouris, Erin L. Hestir, Jacob Fleck, Jeffrey A. Hansen, Brian A. Bergamaschi   +4 more
wiley   +1 more source

Fluorescence as a tracer of the susceptibility of dissolved organic matter to photodegradation in the Arctic Ocean

Limnology and Oceanography, Volume 70, Issue 8, Page 2299-2314, August 2025.
Abstract The Arctic Ocean exports a large amount of terrestrial dissolved organic matter (DOM) to the Nordic seas. With climate change, the supply of terrestrial DOM from the Arctic Ocean will increase while less sea ice might lead to an increased loss of terrestrial DOM due to photodegradation.
Urban J. Wünsch, Rafael Gonçalves‐Araujo, Mats A. Granskog, Linea Gry Ebbesen, Maria Papadimitraki, Colin A. Stedmon   +5 more
wiley   +1 more source

Mesoscale and submesoscale variability of organic matter in island-induced eddies across their life cycle: implications for the biological carbon pump

Frontiers in Marine Science
The Canary Islands region exhibits intense mesoscale activity, with eddies generated south the islands by perturbations of the Canary Current. After detachment, these eddies drift southwestward along the Canary Eddy Corridor (CEC), exporting their ...
J. L. García, J. L. García, J. Arístegui, M. J. Pazó, V. Vieitez dos Santos, N. Hernández-Hernández, Mar Nieto-Cid, Mar Nieto-Cid, M. D. Gelado-Caballero, A. Martínez-Marrero, X. A. Álvarez-Salgado   +10 more
doaj   +1 more source

Diagnosing coastal processes using machine learning and ocean buoyancy gliders

Limnology and Oceanography, Volume 70, Issue S1, Page S150-S164, July 2025.
Abstract Ocean buoyancy gliders provide a comprehensive view of the water column, offering more than simply a snapshot of a single moment in time or space. In this study, we applied the established machine learning method, k‐means clustering, to a glider dataset collected in the summer of 2015 in the northern Gulf of Mexico.
Robert L. Iles IV, Steven F. DiMarco, Gerardo Gold‐Bouchot, Anthony H. Knap   +3 more
wiley   +1 more source

Research Progress of Chromophoric Dissolved Organic Matter (CDOM) in Landfill Leachate by Electrochemical Method

Frontiers in Science and Engineering
Over the years, industry, agriculture and other human activities have discharged large amounts of organic pollutants into landfills. Among them, color-resistant dissolved organic pollutants have attracted great attention. In order to achieve the safe discharge of wastewater, a variety of treatment technologies have been used to effectively eliminate ...
Lifeng Shi, Siao Zhang, Hao Wang
openaire   +1 more source

Chromophoric dissolved organic matter (CDOM) variability over the continental shelf of the northern Bay of Bengal

Oceanologia, 2017
The present paper dealt with the annual dynamics of the absorption coefficient of chromophoric dissolved organic matter at 440 nm {aCDOM(440)} during February 2015 to January 2016 in the continental shelf of northern Bay of Bengal (nBoB) for the first time.
Sourav Das, Isha Das, Sandip Giri, Abhra Chanda, Sourav Maity, Aneesh A. Lotliker, T. Srinivasa Kumar, Anirban Akhand, Sugata Hazra   +8 more
openaire   +2 more sources