Results 41 to 50 of about 5,134,596 (300)

Modeling the small-scale deposition of snow onto structured Arctic sea ice during a MOSAiC storm using snowBedFoam 1.0. [PDF]

open access: yesGeoscientific Model Development, 2022
The remoteness and extreme conditions of the Arctic make it a very difficult environment to investigate. In these polar regions covered by sea ice, the wind is relatively strong due to the absence of obstructions and redistributes a large part of the ...
O. Hames   +13 more
doaj   +1 more source

Can uncertainties in sea ice albedo reconcile patterns of data-model discord for the Pliocene and 20th/21st centuries? [PDF]

open access: yes, 2014
General Circulation Model simulations of the mid-Pliocene warm period (mPWP, 3.264 to 3.025 Myr ago) currently underestimate the level of warming that proxy data suggest existed at high latitudes, with discrepancies of up to 11°C for sea surface ...
Haywood, Alan   +28 more
core   +1 more source

Deep learning subgrid-scale parametrisations for short-term forecasting of sea-ice dynamics with a Maxwell elasto-brittle rheology [PDF]

open access: yesThe Cryosphere, 2023
We introduce a proof of concept to parametrise the unresolved subgrid scale of sea-ice dynamics with deep learning techniques. Instead of parametrising single processes, a single neural network is trained to correct all model variables at the same time ...
T. S. Finn   +7 more
doaj   +1 more source

Melt pond fraction and spectral sea ice albedo retrieval from MERIS data – Part 2: Case studies and trends of sea ice albedo and melt ponds in the Arctic for years 2002–2011 [PDF]

open access: yesThe Cryosphere, 2015
The spatial and temporal dynamics of melt ponds and sea ice albedo contain information on the current state and the trend of the climate of the Arctic region.
L. Istomina   +8 more
doaj   +1 more source

Antarctic sea ice trends and its response to the Southern annular mode [PDF]

open access: yes, 2009
Includes bibliographical references (leaves 37-42).Sea ice covers vast regions of the Southern Ocean and impacts on the climate as well as the plant and animal life of the region.
Collins, Charine
core   +1 more source

Capacity of a set of CMIP6 models to simulate Arctic sea ice drift

open access: yesAnnals of Glaciology
Evaluating CMIP6 model performance helps to improve the prediction of future changes in Arctic sea ice. We analyze the seasonal cycles, distribution, and evolution of sea ice in different regions from 1979 to 2014.
Xinfang Zhang   +2 more
doaj   +1 more source

Numerical modelling of thermodynamics and dynamics of sea ice in the Baltic Sea [PDF]

open access: yesOcean Science, 2011
In this paper, a numerical dynamic-thermo-dynamic sea-ice model for the Baltic Sea is used to analyze the variability of ice conditions in three winter seasons.
A. Herman, J. Jedrasik, M. Kowalewski
doaj   +1 more source

Evaluation of Operation IceBridge quick-look snow depth estimates on sea ice [PDF]

open access: yes, 2015
We evaluate Operation IceBridge (OIB) ‘quick-look’ (QL) snow depth on sea ice retrievals using in situ measurements taken over immobile first-year ice (FYI) and multi-year ice (MYI) during March of 2014. Good agreement was found over undeformed FYI (-4.5
Joshua King   +17 more
core   +1 more source

Comparing heterogeneity of sea-ice models with viscous-plastic and Maxwell elasto-brittle rheology

open access: yesAnnals of Glaciology
Classical sea-ice models in climate model resolution do not resolve the small-scale physics of sea ice. New methods to address this problem include modifications to established viscous-plastic (VP) rheology models, sub-gridscale parameterizations or new ...
Mirjam Bourgett   +2 more
doaj   +1 more source

Demographic responses to climate change in a threatened Arctic species

open access: yesEcology and Evolution, 2021
The Arctic is undergoing rapid and accelerating change in response to global warming, altering biodiversity patterns, and ecosystem function across the region.
Kylee D. Dunham   +5 more
doaj   +1 more source

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