Results 1 to 10 of about 176,859 (335)

New insight from CryoSat-2 sea ice thickness for sea ice modelling [PDF]

The Cryosphere, 2019
Estimates of Arctic sea ice thickness have been available from the CryoSat-2 (CS2) radar altimetry mission during ice growth seasons since 2010. We derive the sub-grid-scale ice thickness distribution (ITD) with respect to five ice thickness categories ...
D. Schröder, D. L. Feltham, M. Tsamados, A. Ridout, R. Tilling   +4 more
doaj   +10 more sources

Dependence of Sea Ice Yield-Curve Shape on Ice Thickness [PDF]

Journal of Physical Oceanography, 2004
In this note, the authors discuss the contribution that frictional sliding of ice floes (or floe aggregates) past each other and pressure ridging make to the plastic yield curve of sea ice.
Alexander V. Wilchinsky, D. L. Feltham
core   +9 more sources

Summertime sea-ice prediction in the Weddell Sea improved by sea-ice thickness initialization. [PDF]

Sci Rep, 2021
AbstractSkillful sea-ice prediction in the Antarctic Ocean remains a big challenge due to paucity of sea-ice observations and insufficient representation of sea-ice processes in climate models. Using a coupled general circulation model, this study demonstrates skillful prediction of the summertime sea-ice concentration (SIC) in the Weddell Sea with ...
Morioka Y, Iovino D, Cipollone A, Masina S, Behera SK.   +4 more
europepmc   +6 more sources

The effects of assimilating a sub-grid-scale sea ice thickness distribution in a new Arctic sea ice data assimilation system [PDF]

The Cryosphere, 2023
In the past decade groundbreaking new satellite observations of the Arctic sea ice cover have been made, allowing researchers to understand the state of the Arctic sea ice system in greater detail than before.
N. Williams, N. Byrne, D. Feltham, P. J. Van Leeuwen, P. J. Van Leeuwen, R. Bannister, D. Schroeder, A. Ridout, L. Nerger   +8 more
doaj   +4 more sources

Estimating Arctic Sea Ice Thickness with CryoSat-2 Altimetry Data Using the Least Squares Adjustment Method [PDF]

Sensors, 2020
Satellite altimeters can be used to derive long-term and large-scale sea ice thickness changes. Sea ice thickness retrieval is based on measurements of freeboard, and the conversion of freeboard to thickness requires knowledge of the snow depth and snow,
Feng Xiao, Fei Li, Shengkai Zhang, Jiaxing Li, Tong Geng, Yue Xuan   +5 more
doaj   +2 more sources

Regime shift in Arctic Ocean sea ice thickness. [PDF]

Nature, 2023
AbstractManifestations of climate change are often shown as gradual changes in physical or biogeochemical properties1. Components of the climate system, however, can show stepwise shifts from one regime to another, as a nonlinear response of the system to a changing forcing2.
Sumata H, de Steur L, Divine DV, Granskog MA, Gerland S.   +4 more
europepmc   +4 more sources

Sea ice thickness as a stochastic process [PDF]

Journal of Geophysical Research: Oceans, 2000
Observed probability distributions of sea ice thickness are approximately exponential for thick ice. An explanation is given on the basis of simple representations of the thermal and mechanical processes. The argument predicts that the e‐folding scale for the exponential is proportional to the thermal equilibrium thickness.
A. S. Thorndike
openalex   +4 more sources

Interannual variability in Transpolar Drift summer sea ice thickness and potential impact of Atlantification [PDF]

The Cryosphere, 2021
Changes in Arctic sea ice thickness are the result of complex interactions of the dynamic and variable ice cover with atmosphere and ocean. Most of the sea ice exiting the Arctic Ocean does so through Fram Strait, which is why long-term measurements of ...
H. J. Belter, T. Krumpen, L. von Albedyll, T. A. Alekseeva, G. Birnbaum, S. V. Frolov, S. Hendricks, A. Herber, I. Polyakov, I. Polyakov, I. Polyakov, I. Raphael, R. Ricker, S. S. Serovetnikov, M. Webster, C. Haas, C. Haas   +16 more
doaj   +4 more sources

Theory of the sea ice thickness distribution [PDF]

Physical Review Letters, 2015
We use concepts from statistical physics to transform the original evolution equation for the sea ice thickness distribution $g(h)$ due to Thorndike et al., (1975) into a Fokker-Planck like conservation law. The steady solution is $g(h) = {\cal N}(q) h^q \mathrm{e}^{-~ h/H}$, where $q$ and $H$ are expressible in terms of moments over the transition ...
John S. Wettlaufer, Srikanth Toppaladoddi   +1 more
arxiv   +6 more sources

Sea-ice thickness and roughness in the Ross Sea, Antarctica [PDF]

Annals of Glaciology, 2001
AbstractSea-ice thickness and roughness data collected on three cruises in the Ross Sea, Antarctica, showed interseasonal, regional and interannual variability. Variability was reduced to season, or age of ice floe, when sea-ice roughness values from around Antarctica were compared.
Tina Tin, Martin O. Jeffries
openalex   +3 more sources