Results 81 to 90 of about 3,897,746 (210)

Colored dissolved organic matter (cDOM) absorption measurements during Yamal-Arctic Expedition in 2014

, 2016
Colored dissolved organic matter (cDOM) absorption measurements during Yamal-Arctic Expedition in ...
Alekseeva, Natalia, Irina Fedorova (6975533), Alexander Evdokimov (8014187), Antonina Chetverova (6982952), Tatiana Skorospekhova (7307642), Natalia Alekseeva (7882871), Birgit Heim (6967238), Alexandra Shadrina (8014190), Fedorova, Irina V, Shadrina, Alexandra, Heim, Birgit, Chetverova, Antonina, Evdokimov, Alexander, Skorospekhova, Tatiana   +13 more
core   +1 more source

Spectral slopes of colored dissolved organic matter (cDOM) in Pohjanpitäjänlahti bay in May 2021

, 2022
Water samples were collected from Pohjanpitäjänlahti bay in May 2021 from four stations along a coastal salinity gradient. Absorption spectral slopes at 275-295, 350-400 and 300-650 nm were calculated for characterization of colored dissolved organic ...
Pykäri, Janina
core   +1 more source

Eddies in Seasonally Ice‐Covered Fjords of the Northern Canadian Arctic Archipelago

Journal of Geophysical Research: Oceans, Volume 131, Issue 7, July 2026.
Abstract We present the first direct observations of cyclonic passing and standing eddies within landfast ice‐covered fjords where wind stress is unavailable to drive the eddies. Using a series of winter and spring 2025 in situ observations from the northern Canadian Arctic Archipelago, we identify three baroclinic eddies beneath the landfast ice cover.
Igor A. Dmitrenko, Sergei A. Kirillov, Paul G. Myers, David Capelle, David G. Babb, Clark Pennelly, Lisa C. Matthes, Dorthe Dahl‐Jensen   +7 more
wiley   +1 more source

Influence of Optically Active Substances on Light Attenuation in a Tropical Eutrophic Urban Reservoir

Limnological Review
This study investigated the impact of optically active substances on light attenuation in a tropical eutrophic urban reservoir under different seasonal conditions.
Renata C. H. Amancio, Stella P. Pacheco, Karen A. F. Moura, Bianca L. Valle, Julia T. C. Alves, Fernanda F. Melo, Vitor J. G. Silva, Lívia S. Botelho, Raquel T. Rocha, Daiana R. Pelegrine, Thiago M. Salgueiro, Carlos M. O. Tadeu, Vitor G. Elian, Giulia A. Ducca, Arielli G. Zavaski, Renata L. Moreira, Winnícius M. S. Sá, Estevão E. O. Eller, Renato B. de Oliveira-Junior, Ivan M. Monteiro, Lorena T. Oporto, Diego G. F. Pujoni, José F. Bezerra-Neto   +22 more
doaj   +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

Using High Spatio-Temporal Optical Remote Sensing to Monitor Dissolved Organic Carbon in the Arctic River Yenisei

Remote Sensing, 2016
In Arctic regions, a major concern is the release of carbon from melting permafrost that could greatly exceed current human carbon emissions. Arctic rivers drain these organic-rich watersheds (Ob, Lena, Yenisei, Mackenzie, Yukon) but field measurements ...
Pierre-Alexis Herrault, Laure Gandois, Simon Gascoin, Nikita Tananaev, Théo Le Dantec, Roman Teisserenc   +5 more
doaj   +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

Retrieval of spectral slope of chromophoric dissolved organic matter (S275–295) in Laptev Sea

Journal of Hydrology: Regional Studies
Study region: Laptev Sea Study focus: The absorption slopes of colored dissolved organic matter (CDOM) in the spectral range of 275–295 nm (S275–295) is a reliable parameter of the source and transformation of CDOM and dissolved organic carbon (DOC) in ...
Yulei Mu, Jue Huang, Mingxin Song, Guangyue Yu   +3 more
doaj   +1 more source

Bio-Optical Properties of the Inner Continental Shelf off Santos Estuarine System, Southeastern Brazil, and their Implications for Ocean Color Algorithm Performance

Brazilian Journal of Oceanography, 2014
Optical characterizations of coastal water masses are important tools for a better understanding of physical and biochemical processes and aid the optimization of ocean color algorithms.
Melissa Carvalho, Aurea Maria Ciotti, Sônia Maria Flores Gianesella, Flávia Marisa Prado Saldanha Corrêa, Rafael Riani Costa Perinotto   +4 more
doaj   +1 more source

Acclimation of Charophytes to Spectral Composition of Light at Limiting Irradiances

International Review of Hydrobiology, Volume 111, Issue 1, June 2026.
ABSTRACT Irradiance is regarded as a key factor determining the maximum colonization depth (Z0) of submerged macrophytes. However, the relevance of acclimation capabilities to spectral composition under such low‐light conditions remains poorly understood.
Alena‐Maria Maidel, Vanessa Fabienne Bischoff, Hendrik Schubert   +2 more
wiley   +1 more source