Results 51 to 60 of about 567 (174)

Soil quality degradation under seawater intrusion: chemical, spectral, and dielectric insights

Discover Soil
Soil salinization caused by seawater intrusion is a growing global concern that impacts agricultural productivity and soil sustainability. This study aimed to assess how saltwater intrusion influences the chemical, mineralogical, and electrical ...
Ajay L. Vishwakarma, Shruti O. Varma, Ajay Chaudhari, M. R. Sonawane   +3 more
doaj   +1 more source

Biophysical controls on spatial and summer/winter distributions of total and chromophoric dissolved organic matter in the Taiwan Strait

Frontiers in Marine Science, 2022
This study examined the physical and biogeochemical processes that determine the spatial and summer/winter distributions of dissolved organic matter (DOM) and chromophoric dissolved organic matter (CDOM) in the Taiwan Strait (TS).
Jia-Jang Hung, Wan-Tzu Lu, Hsin-Mei Yang, Hsin-Mei Yang, Yen-Hui Lin, Laodong Guo   +5 more
doaj   +1 more source

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

Global 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, Jinyoung Jung, Jiwoo Kim, Mi Hae Jeon, Shigeru Aoki, Youngju Lee, Tae‐Wan Kim, Sun‐Yong Ha, Jisoo Park, Jaeill Yoo, Boyeon Lee, Jong Kuk Moon, Hyoung Sul La, Taejin Kim   +13 more
wiley   +1 more source

Are extracted materials truly representative of original samples? Impact of C18 extraction on CDOM optical and chemical properties

Frontiers in Chemistry, 2016
Some properties of dissolved organic matter (DOM) and chromophoric dissolved organic matter (CDOM) can be easily measured directly on whole waters, while others require sample concentration and removal of natural salts.
Andrea A Andrew, Rossana eDel Vecchio, Yi eZhang, Ajit eSubramaniam, Neil eBlough   +4 more
doaj   +1 more source

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

Water 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, J. C. Pérez‐Girón, T. Postma, C. Pérez‐Martínez, D. Alcaraz‐Segura, J. Martínez‐López   +5 more
wiley   +1 more source

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

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

Satellite Data Trace Seasonal Freshwater Dispersion in Hudson and James Bays

Geophysical 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, Simon Bélanger, Zou Zou A. Kuzyk, Rakesh K. Singh, Soham Mukherjee, Pierre Larouche, Alessia C. Guzzi, Emma L. Ausen, Greg McCullough, Jens K. Ehn   +9 more
wiley   +1 more source

On saltwater intrusion in Pearl River estuary using reflectance spectroscopy and simulated MERIS Data

Shui kexue jinzhan, 2012
Spectra,salinity,total suspended solids and colored dissolved organic matter are sampled at 44 locations in the Pearl River estuary on December 18,19 and 21,2006.The samples are analyzed.Based on the experimental results,the relationship between the ...
FANG Li-gang, LI Hong-li, CHEN Shui-sen
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