Results 51 to 60 of about 3,954 (213)

Improving Colored Dissolved Organic Matter (CDOM) Retrievals by Sentinel2-MSI Data through a Total Suspended Matter (TSM)-Driven Classification: The Case of Pertusillo Lake (Southern Italy)

Remote Sensing, 2023
Colored dissolved organic matter (CDOM) is a significant constituent of aquatic systems and biogeochemical cycles. Satellite CDOM retrievals are challenging in inland waters, due to overlapped absorption properties of bio-optical parameters, like Total ...
Emanuele Ciancia, Alessandra Campanelli, Roberto Colonna, Angelo Palombo, Simone Pascucci, Stefano Pignatti, Nicola Pergola   +6 more
doaj   +1 more source

Refining techniques for high‐frequency monitoring of chlorophyll a fluorescence in estuarine systems

Limnology and Oceanography: Methods, EarlyView.
Abstract Concentrations of the photosynthetic pigment chlorophyll a are commonly used as a proxy for phytoplankton biomass in aquatic systems. Traditional methods for extracting chlorophyll a in discrete samples limit measurement frequency, while in situ sensor technology provides high frequency chlorophyll a fluorescence measurements at a more ...
Nicole Dix, Hannah Nicklay, Jacob Cianci‐Gaskill, Shannon Dunnigan Kimmel, J. Silas Tanner, Kim Cressman, Steven E. McMurray, Yoshimi M. Rii, Rikke Jeppesen, Rachel Guy, Erik Smith   +10 more
wiley   +1 more source

Entering the Era of Directly Supporting Society With Observation‐Based Ocean Acidification Data

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract Ocean acidification is a growing concern for many nations around the world. However, our capacity to monitor changes in carbonate chemistry with sufficient spatial and temporal resolution, has until now, been limited, which has impeded effective action and decision‐making at international, national, and regional levels.
Helen S. Findlay, Lucile Gaultier, Luke Gregor, Nicolas Gruber, Peter Land, Daniel Ford, Roberto Sabia, Aleluia Taise‐Uili, Stephen Widdicombe, Jan Newton, Kaitlyn Lowder, Jamie Shutler   +11 more
wiley   +1 more source

Surface water Dissolved Organic Matter (CDOM) in the Lena River (2015)

, 2019
Surface water Dissolved Organic Matter (CDOM) in the Lena River ...
Bennet Juhls (6978515), Birgit Heim (6967238), Tatiana Skorospekhova (7307642), Heim, Birgit, Juhls, Bennet, Skorospekhova, Tatiana   +5 more
core   +1 more source

Parameterization of the light absorption properties of chromophoric dissolved organic matter in the Baltic Sea and Pomeranian lakes [PDF]

Ocean Science, 2016
This study presents three alternative models for estimating the absorption properties of chromophoric dissolved organic matter aCDOM(λ). For this analysis we used a database containing 556 absorption spectra measured in 2006–2009 in different regions of ...
J. Meler, P. Kowalczuk, M. Ostrowska, D. Ficek, M. Zabłocka, A. Zdun   +5 more
doaj   +1 more source

Impact of Simulated Risk Factor Management on Cardiovascular Disease and Costs in Type 2 Diabetes Using the ABC Model

Diabetes, Obesity and Metabolism, Volume 28, Issue 7, Page 5670-5683, July 2026.
ABSTRACT Aims We evaluated the impact of scenario‐based multifactorial control on the 3‐year incidence of fatal/non‐fatal cardiovascular disease (CVD) and associated healthcare costs in Asian patients with type 2 diabetes (T2D). Materials and Methods We applied the validated ‘ABC’ model to simulate the 3‐year impact of attaining multiple treatment ...
Lee‐Ling Lim, Eric S. H. Lau, Juliana N. M. Lui, Linong Ji, A. G. Unnikrishnan, Sirinart Sirinvaravong, Siew‐Pheng Chan, Soo Lim, Andrea O. Y. Luk, Juliana C. N. Chan   +9 more
wiley   +1 more source

Enhanced Solar Radiation Attenuation in the Arctic Shelf Driven by Warming‐Induced Terrestrial Inputs

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Arctic warming accelerates permafrost thaw and coastal erosion, increasing terrestrial material transport to the ocean. Using Moderate Resolution Imaging Spectroradiometer (MODIS) data (2002–2023), we report a widespread increase in the diffuse attenuation coefficient Kd(490) across Arctic shelves since 2018, notably in the Laptev and Kara ...
Xingyuan Zhu, Tao Li, Lee W. Cooper
wiley   +1 more source

Elucidating the Reactivity and Fate of Dissolved Organic Matter in Groundwater Entering the Alaska Beaufort Sea Coast Using 14C Ramped Oxidation

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Supra‐permafrost groundwater (SPGW) is a significant but understudied source of dissolved organic matter (DOM) to Arctic coastal systems. We applied ramped pyrolysis/oxidation (RPO) with Δ14C and δ13C isotopic analysis to assess DOM reactivity and origin in SPGW, river, and lagoon waters along the Alaska Beaufort Sea coast.
C. T. Connolly, R. G. M. Spencer, J. W. McClelland   +2 more
wiley   +1 more source

Initial Assessment of the Detectability of Cyanotoxin Occurrence Using PACE Satellite Observations

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Microcystin is a major public health hazard during freshwater cyanobacterial blooms, yet its remote detection remains challenging because it lacks any direct optical absorption features. We demonstrate that hyperspectral observations from NASA's PACE Ocean Color Instrument (OCI) can be used to detect elevated microcystin concentrations by ...
Denesh Karunakaran, Ardeshir Ebtehaj, Lucas Clark Burnette, Miki Hondzo, Leif Olmanson   +4 more
wiley   +1 more source

Estimation of Chromophpric Dissolved Organic Matter Concentration in Erhai Lake Using the Quasi-Analytical Algorithm From Sentinel-3 Satellite Data

IEEE Access
Chromophoric dissolved organic matter (CDOM) is a crucial component of aquatic environments. Accurately quantifying the content of CDOM is essential for supporting lake water quality monitoring and management.
Zhengnan Zeng, Bo-Hui Tang, Dong Wang, Liang Huang, Guokun Chen, Zhongxi Ge   +5 more
doaj   +1 more source