Results 31 to 40 of about 5,354,706 (300)

A dataset of direct observations of sea ice drift and waves in ice

Scientific Data, 2023
Variability in sea ice conditions, combined with strong couplings to the atmosphere and the ocean, lead to a broad range of complex sea ice dynamics. More in-situ measurements are needed to better identify the phenomena and mechanisms that govern sea ice
Jean Rabault, Malte Müller, Joey Voermans, Dmitry Brazhnikov, Ian Turnbull, Aleksey Marchenko, Martin Biuw, Takehiko Nose, Takuji Waseda, Malin Johansson, Øyvind Breivik, Graig Sutherland, Lars Robert Hole, Mark Johnson, Atle Jensen, Olav Gundersen, Yngve Kristoffersen, Alexander Babanin, Paulina Tedesco, Kai Haakon Christensen, Martin Kristiansen, Gaute Hope, Tsubasa Kodaira, Victor de Aguiar, Catherine Taelman, Cornelius P. Quigley, Kirill Filchuk, Andrew R Mahoney   +27 more
doaj   +1 more source

On the dynamic instability of Arctic sea ice [PDF]

npj Climate and Atmospheric Science, 2019
AbstractThe last few decades have seen a significant decline in Arctic sea ice, generating concerns about both its causes and its longer-term implications. In this paper, we introduce an empirical technique to examine the dynamics of Arctic sea ice extent. Using quantile autoregression, we find that the negative effect of atmospheric CO2 is stronger in
Jean-Paul Chavas, Corbett Grainger
openaire   +1 more source

The effect of sea-ice loss on beluga whales (Delphinapterus leucas) in West Greenland [PDF]

, 2010
An aerial survey was conducted to estimate the abundance of belugas (Delphinapterus leucas) on their wintering ground in West Greenland in March–April 2006 and 2008.
Marques, Tiago A., Stern, H., Simon, M., Heide-Jørgensen, M.P., Heide-Jørgensen, M. P., Borchers, D., Laidre, K.L., Borchers, David Louis, Laidre, K. L., Marques, T.A., Borchers, David Louis; id_orcid, Marques, Tiago A.; id_orcid   +11 more
core   +1 more source

Arctic sea ice mass balance in a new coupled ice–ocean model using a brittle rheology framework [PDF]

The Cryosphere, 2023
Sea ice is a key component of the Earth's climate system as it modulates the energy exchanges and associated feedback processes at the air–sea interface in polar regions.
G. Boutin, E. Ólason, P. Rampal, H. Regan, C. Lique, C. Talandier, L. Brodeau, R. Ricker   +7 more
doaj   +1 more source

Wave dynamics features in a sea ice area

Ukrainian Antarctic Journal, 2003
On a base of developed hydrodynamic models the reflecting capacities of edges, cracks and ice field breaks are studied when the surface waves pass through them. It was investigated the ice flexural rigidity and compression effects on the spatial distribution of wave disturbance amplitudes and bend stresses of the ice cover on both sides of the examined
Bukatov, A.A., Bukatov, A.E, Zharkov, V.V., Zav'yalov, D.D.   +3 more
openaire   +3 more sources

Thermodynamic and dynamic contributions to the abrupt increased winter Arctic sea ice growth since 2008

Environmental Research Letters, 2023
The area of Arctic winter sea ice growth (WSIG) has expanded dramatically since winter 2008. Yet the thermodynamic and dynamic contributions to the abrupt increase in WSIG remain unclear.
Daling Li Yi, Ke Fan, Shengping He
doaj   +1 more source

Sea ice and iceberg dynamic interaction [PDF]

Journal of Geophysical Research, 2011
[1] A model of iceberg motion has been implemented in the Los Alamos sea ice model (CICE). Individual bergs are tracked under the influence of winds, currents, sea surface tilt, Coriolis, and sea ice forcing. In turn, sea ice is affected by the presence of icebergs, primarily as obstacles that cause the sea ice to ridge on the upstream side or create ...
Elizabeth C. Hunke, Darin Comeau
openaire   +1 more source

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

, 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, Wade, Bridget, Francis, JE, Francis, Jane, Wade, Bridget S., Hill, Daniel J., Hill, DJ, Haywood, Alan M., Dowsett, Harry, Pope, James O., Howell, Fergus, Pope, James, Pickering, Steven, Howell, FW, Dowsett, Harry J., Pickering, SJ, Pickering, Steven J., Salzmann, U, Howell, Fergus W., Dolan, Aisling, Dolan, Aisling M., Haywood, AM, Salzmann, Ulrich, Francis, Jane E., Dolan, AM, Dowsett, HJ, Hill, Daniel, Pope, JO, Wade, BS   +28 more
core   +1 more source

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

Geoscientific 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, O. Hames, M. Jafari, D. N. Wagner, D. N. Wagner, I. Raphael, D. Clemens-Sewall, C. Polashenski, C. Polashenski, M. D. Shupe, M. D. Shupe, M. Schneebeli, M. Lehning, M. Lehning   +13 more
doaj   +1 more source

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

The 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, C. Durand, A. Farchi, M. Bocquet, Y. Chen, A. Carrassi, A. Carrassi, V. Dansereau   +7 more
doaj   +1 more source