Results 81 to 90 of about 14,128 (260)

Bayesian Estimates of Ice Optical Properties for Lake Ice Modeling

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Ice and snow cover on frozen lakes is a natural barrier to solar radiation, reducing the transfer of energy that controls under‐ice thermal dynamics and biological productivity. Direct measurements of under‐ice irradiance remain scarce due to logistical constraints.
G. Donini, C. Agostinelli, G. A. Weyhenmeyer, G. Kirillin, M. Leppäranta, G. E. Zdorovennova, I. A. Aslamov, J. A. Culpepper, H. A. Dugan, I. V. Fedorova, E. Jakobsson, R. L. North, Iu.S. Novikova, N. I. Palshin, N. J. T. Pearce, J. Robinson, K. Shchapov, K. Vikström, M. A. Xenopoulos, X. Yang, R. E. Zdorovennov, S. Piccolroaz   +21 more
wiley   +1 more source

Remote sensing estimation of the concentration and sources of coloured dissolved organic matter based on MODIS: A case study of Erhai lake

Ecological Indicators, 2021
The use of satellite remote sensing to estimate coloured dissolved organic matter (CDOM) and identify its potential sources is important for monitoring lake water quality and implementing management strategies.
Hao Zhang, Bo Yao, Shengrui Wang, Guoqiang Wang   +3 more
doaj   +1 more source

Modelling the Sensitivity of Yukon River Biogeochemical Dynamics to Environmental and Chemical Drivers: Implications for Dissolved Organic Carbon

Hydrological Processes, Volume 40, Issue 4, April 2026.
We present a novel, process‐based, river model that effectively captures the interplay among hydrological, chemical, and soil parameters shaping riverine DOC transformations and reproduces observed DOC concentrations in the Yukon River. Sensitivity analysis highlights the importance of understanding the variability in DOC entering the headwater from ...
Amadini M. Jayasinghe, Georgina A. Gibson, Nicole Jeffery, Jaclyn Clement Kinney, Anastasia Piliouras   +4 more
wiley   +1 more source

Effects of integration time on in-water radiometric profiles [PDF]

, 2018
This work investigates the effects of integration time on in-water downward irradiance E-d, upward irradiance E-u and upwelling radiance L-u profile data acquired with free-fall hyperspectral systems.
Antoine, Bohren, BulgarelliZibordi, Chandrasekhar, Clark, Davide D’Alimonte, DeGroot, D’Alimonte, D’Alimonte, D’Alimonte, D’Alimonte, D’Alimonte, Elfouhaily, Emde, Escher, Fournier, Fournier, Franz, Giuseppe Zibordi, Hansen, Hieronymi, Hieronymi, Hieronymi, Hieronymi, Hieronymi, Hooker, Jerlov, Jones, Kajiyama, Kajiyama, KajiyamaSato, KajiyamaWyrzykowski, Mobley, Mueller, Penndorf, Sathyendranath, Schattschneider, Seber, Siegel, Smith, Sobolev, Tamito Kajiyama, Tsai, Van De Hulst, Werdell, You, Zaneveld, Zibordi, Zibordi, Zibordi, Zibordi   +50 more
core   +1 more source

Permafrost Mass Wasting in Ice‐Rich Landscapes: Recent Advances (2013 to 2024) on Mechanisms, Dynamics and Impacts

Permafrost and Periglacial Processes, Volume 37, Issue 2, Page 284-304, April/June 2026.
ABSTRACT Across circumpolar permafrost regions, climate change is destabilizing ice‐rich hillslopes, increasing the frequency and magnitude of thaw‐driven mass wasting. This paper reviews recent studies (2013–2024) on thaw‐driven mass wasting, focusing on the processes, morphology and trajectories of geomorphic change and their implications for ...
J. M. Young, L. Farquharson, J. Luo, N. Nesterova, J. van der Sluijs, S. V. Kokelj   +5 more
wiley   +1 more source

High photoreactivity of chromophoric dissolved organic matter derived from Ulva prolifera and Sargassum

Frontiers in Marine Science
The epipelagic macroalgae of Ulva prolifera and Sargassum are the primary contributors to widespread seaweed tides globally. Both ocean plants release large amounts of chromophoric dissolved organic matter (CDOM) into the surrounding seawater.
Yong Zhang, Yong Zhang, Kaili Fang, Mengmeng Liu, Jihua Liu, Jihua Liu, Xiaobo Zhao, Weidong Zhai, Hongsheng Zhang, Xiaotong Wang, Huixiang Xie   +10 more
doaj   +1 more source

The most oligotrophic subtropical zones of the global ocean: similarities and differences in terms of chlorophyll and yellow substance [PDF]

Biogeosciences, 2010
The cores of the subtropical anticyclonic gyres are characterized by their oligotrophic status and minimal chlorophyll concentration, compared to that of the whole ocean. These zones are unambiguously detected by space borne ocean color sensors thanks to
A. Morel, H. Claustre, B. Gentili
doaj   +1 more source

Selection of the key earth observation sensors and platforms focusing on applications for Polar Regions in the scope of Copernicus system 2020-2030 [PDF]

, 2019
An optimal payload selection conducted in the frame of the H2020 ONION project (id 687490) is presented based on the ability to cover the observation needs of the Copernicus system in the time period 2020–2030.
Camps Carmona, Adriano José, Cote, Judith, Hyuk, Park, Lancheros Sepulveda, Estefany Maria, Pierotti, Stéphane, Rodríguez, Pedro, Tonetti, Stefania   +6 more
core   +2 more sources

Identifying the Extent of River‐Influenced Waters of the Transpolar Drift With In Situ Measurements of Dissolved Organic Matter Fluorescence and Seawater Density

Journal of Geophysical Research: Oceans, Volume 131, Issue 4, April 2026.
Abstract The oceanic component of the Transpolar Drift (TPD) is a key component of Arctic Ocean surface circulation. However, our understanding of its spatial extent and influence on the underlying water column remains limited. This study leverages a unique high spatial resolution oceanographic transect from August 2022 (late summer), first to identify
Zoé Koenig, Mats A. Granskog, Morven Muilwijk, Achim Randelhoff, Angelika H. H. Renner, Melissa Chierici, Agneta Fransson, Rafael Gonçalves‐Araujo, Paul A. Dodd   +8 more
wiley   +1 more source

An explanation of the spectral variation in freshwater CDOM fluorescence [PDF]

Limnology and Oceanography, 1992
The variation of freshwater chromophoric (or colored) dissolved organic matter (CDOM) fluorescence with respect to sample pH was examined. Trends from previous studies are supported by results obtained from fluorescence spectra collected during sample titration.
openaire   +1 more source