Results 31 to 40 of about 786 (181)

From Glacier to Coast: Seasonal Hydrographic Dynamics in the Ella Ø Fjord Complex, East Greenland

Journal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.
Abstract Greenland's ice loss is increasing across the ice sheet due to enhanced surface melting and accelerated glacier discharge, contributing to sea level rise and potentially altering ocean circulation and marine ecosystems. Fjords play a key role in this process by linking the ocean and ice sheet, but currently a limitation is that most fjords in ...
Fleur Rooijakkers, Eugenio Ruiz‐Castillo, Søren Rysgaard   +2 more
wiley   +1 more source

Enhanced Retrieval of Spring Snow Depth Over Pan‐Arctic Sea Ice From AMSR2 Observations for 2013–2023 Using Multi‐Model Machine Learning

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Snow on sea ice modulates the Earth's radiation budget and sea ice mass balance, yet satellite retrievals of Arctic snow depth remain subject to substantial algorithmic uncertainty. We develop a multi‐model machine learning (ML) framework for retrieving spring snow depth over Arctic sea ice from Advanced Microwave Scanning Radiometer 2 (AMSR2).
Yi Zhou, Chentong Zhang, Alek Petty, Xianwei Wang, Ruibo Lei, Wenxuan Liu, Yu Zhang   +6 more
wiley   +1 more source

Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya) [PDF]

The Cryosphere, 2016
The role of sea ice in the Earth climate system is still under debate, although it is known to influence albedo, ocean circulation, and atmosphere–ocean heat and gas exchange.
A. Spolaor, T. Opel, J. R. McConnell, O. J. Maselli, G. Spreen, C. Varin, T. Kirchgeorg, D. Fritzsche, A. Saiz-Lopez, P. Vallelonga   +9 more
doaj   +1 more source

Prioritizing Shark, Ray, and Chimaera Conservation in Rapidly Changing Polar Waters

Global Change Biology, Volume 32, Issue 8, August 2026.
Polar sharks, rays, and chimaeras face growing pressures from changing sea‐ice conditions, expanding fisheries, and limited protection. Our assessment highlights where critical habitats occur and how Important Shark and Ray Areas (ISRAs) can support more targeted conservation and fisheries management across the Arctic and Antarctic.
Vanessa B. Bettcher, Amanda Batlle‐Morera, Peter M. Kyne, Ryan Charles, Emiliano García‐Rodríguez, Christoph A. Rohner, Asia O. Armstrong, Margaret O’Leary Amsler, Natalia V. Chernova, Brynn M. Devine, Andrey V. Dolgov, Meghan M. Donovan, Johanna Faure, Brittany Finucci, Jonathan A. D. Fisher, Rachel A. S. Forbes, Kevin J. Hedges, Phil R. Hollyman, Nigel E. Hussey, Romaric Jac, David W. Kulka, Alexei M. Orlov, Clara Péron, Matthias Schaber, Eric Ste‐Marie, Simon Weigmann, Rima W. Jabado   +26 more
wiley   +1 more source

Numerical Modeling of Extreme Sea Levels on the Laptev Sea Coast

Geosciences
The present study is devoted to the analysis of extreme sea level oscillations of the Laptev Sea using the ADCIRC model. The numerical modeling is performed on a high-resolution grid and verified for sea level observations from three tide gauges. We have
Mikhail E. Kulikov, Victor S. Arkhipkin, Igor P. Medvedev, Sergey A. Kovachev, Artem A. Krylov   +4 more
doaj   +1 more source

Contrasting two major Arctic coastal polynyas: the role of sea ice in driving diel vertical migrations of zooplankton in the Laptev and Beaufort seas [PDF]

Ocean Science
The diel vertical migration (DVM) of zooplankton is one of the largest species migrations to occur globally and is a key driver of regional ecosystems and the marine carbon pump. Previously thought to be hampered by the extreme light regime prevailing in
I. A. Dmitrenko, V. Petrusevich, A. Preußer, A. Preußer, K. Kosobokova, C. Bouchard, C. Bouchard, M. Geoffroy, M. Geoffroy, A. S. Komarov, D. G. Babb, S. A. Kirillov, D. G. Barber   +12 more
doaj   +1 more source

Increased Frequency, Duration, and Area of Winter Polynyas North of Greenland in a Warming Climate

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Polynyas play a crucial role in the polar marine ecosystems and climate system. Four winter polynya events north of Greenland have been observed, but the response of winter polynyas to climate warming remains unknown. This study investigates projected changes in winter polynyas in the Wandel Sea north of Greenland using the AWI‐CM3 climate ...
Qi Shu, Qiang Wang, Haibo Bi, Dmitry V. Sein, Zhenya Song, Fangli Qiao   +5 more
wiley   +1 more source

Carbon mineralization in Laptev and East Siberian sea shelf and slope sediment [PDF]

Biogeosciences, 2018
The Siberian Arctic Sea shelf and slope is a key region for the degradation of terrestrial organic material transported from the organic-carbon-rich permafrost regions of Siberia.
V. Brüchert, V. Brüchert, L. Bröder, L. Bröder, J. E. Sawicka, J. E. Sawicka, T. Tesi, T. Tesi, T. Tesi, S. P. Joye, X. Sun, X. Sun, I. P. Semiletov, I. P. Semiletov, I. P. Semiletov, V. A. Samarkin   +15 more
doaj   +1 more source

FloeNet: A Mass‐Conserving Global Sea Ice Emulator That Generalizes Across Climates

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract We introduce FloeNet, a graph neural network trained to emulate the Geophysical Fluid Dynamics Laboratory global sea ice model, SIS2. FloeNet is a mass‐conserving model, emulating 6‐hr mass and area budget tendencies related to sea ice and snow‐on‐sea‐ice growth, melt, and advection.
William Gregory, Mitchell Bushuk, James Duncan, Elynn Wu, Adam Subel, Spencer K. Clark, Bill Hurlin, Oliver Watt‐Meyer, Alistair Adcroft, Chris Bretherton, Laure Zanna   +10 more
wiley   +1 more source

Methane fluxes from the sea to the atmosphere across the Siberian shelf seas

Geophysical Research Letters, 2016
The Laptev and East Siberian Seas have been proposed as a substantial source of methane (CH4) to the atmosphere. During summer 2014, we made unique high‐resolution simultaneous measurements of CH4 in the atmosphere above, and surface waters of, the ...
Brett F. Thornton, Marc C. Geibel, Patrick M. Crill, Christoph Humborg, Carl‐Magnus Mörth   +4 more
doaj   +1 more source