Results 21 to 30 of about 5,134,596 (300)

Observations of exponential wave attenuation in Antarctic sea ice during the PIPERS campaign

Annals of Glaciology, 2020
Quantifying the rate of wave attenuation in sea ice is key to understanding trends in the Antarctic marginal ice zone extent. However, a paucity of observations of waves in sea ice limits progress on this front.
Alison L. Kohout, Madison Smith, Lettie A. Roach, Guy Williams, Fabien Montiel, Michael J. M. Williams   +5 more
doaj   +1 more source

Evidence of Abrupt Transitions Between Sea Ice Dynamical Regimes in the East Greenland Marginal Ice Zone

Geophysical Research Letters, 2023
Sea ice modulates the energy exchange between the atmosphere and the ocean through its kinematics. Marginal ice zone (MIZ) dynamics are complex and are not well resolved in routine observations.
Daniel M. Watkins, Angela C. Bliss, Jennifer K. Hutchings, Monica M. Wilhelmus   +3 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

Effect of compressive loading on first-year sea-ice permeability

Journal of Glaciology, 2018
The permeability of sea ice can strongly affect the dissipation of wave energy into the ice pack. Sea-ice permeability is known to be impacted by the brine volume fraction and the blockage of flow pathways by the freezing of infiltrating lower salinity ...
CARL E. RENSHAW, ALEKSEY MARCHENKO, ERLAND M. SCHULSON, EVGENY KARULIN   +3 more
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

Impact of Variable Atmospheric and Oceanic Form Drag on Simulations of Arctic Sea Ice [PDF]

, 2014
Over Arctic sea ice, pressure ridges and floe and melt pond edges all introduce discrete obstructions to the flow of air or water past the ice and are a source of form drag.
Laxon, Seymour W., Farell, Sinead, Bacon, Sheldon, Schroeder, David, Kurtz, Nathan, Flocco, Daniela, Feltham, Daniel L., Tsamados, Michel, Farrell, Sinead L., Flocco, Dani, Feltham, Danny, Laxon, Seymour, Farrell S. L., Laxon S. W., Feltham D. L., Kurtz N., Tsamados M., Schroeder D., Bacon S., Flocco D.   +19 more
core   +1 more source

Estimates of ikaite export from sea ice to the underlying seawater in a sea ice–seawater mesocosm [PDF]

The Cryosphere, 2016
The precipitation of ikaite and its fate within sea ice is still poorly understood. We quantify temporal inorganic carbon dynamics in sea ice from initial formation to its melt in a sea ice–seawater mesocosm pool from 11 to 29 January 2013.
N.-X. Geilfus, N.-X. Geilfus, R. J. Galley, B. G. T. Else, K. Campbell, T. Papakyriakou, O. Crabeck, M. Lemes, B. Delille, S. Rysgaard, S. Rysgaard, S. Rysgaard   +11 more
doaj   +1 more source

The effect of landfast sea ice buttressing on ice dynamic speedup in the Larsen B embayment, Antarctica [PDF]

The Cryosphere
We observe the evacuation of 11-year-old landfast sea ice in the Larsen B embayment on the East Antarctic Peninsula in January 2022, which was in part triggered by warm atmospheric conditions and strong offshore winds.
T. Surawy-Stepney, A. E. Hogg, S. L. Cornford, B. J. Wallis, B. J. Davison, H. L. Selley, R. A. W. Slater, E. K. Lie, L. Jakob, A. Ridout, N. Gourmelen, N. Gourmelen, B. I. D. Freer, B. I. D. Freer, S. F. Wilson, A. Shepherd   +15 more
doaj   +1 more source

The next generation sea-ice model neXtSIM, version 2 [PDF]

Geoscientific Model Development
Sea ice is a key component of the climate system, and sea-ice models are required to realistically simulate climate, ocean, or atmosphere in general circulation models at high latitudes. In this paper, we present the latest version of the next-generation
E. Ólason, E. Ólason, G. Boutin, G. Boutin, T. Williams, T. Williams, A. Korosov, A. Korosov, H. Regan, H. Regan, J. Rheinlænder, J. Rheinlænder, P. Rampal, D. Flocco, D. Flocco, A. Samaké, R. Davy, R. Davy, T. Spain, T. Spain, S. Chua, S. Chua   +21 more
doaj   +1 more source

Nonextensive Dynamics of Drifting Sea Ice [PDF]

ISRN Oceanography, 2013
Cycles of ice pack fragmentation in the Arctic Ocean are caused by the irregular drift dynamics. In February 2004, the Russian ice-research camp North Pole 32 established on a floe in the Arctic Ocean ceased its working activity and was abandoned after a catastrophic icequake. In this communication, the data collected during the last month of the field
Alexandre Chmel, Victor Smirnov
openaire   +1 more source