Results 1 to 10 of about 450,188 (203)

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

open access: yesSensors, 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   +5 more
doaj   +2 more sources

Theory of the sea ice thickness distribution [PDF]

open access: yesPhysical 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
Toppaladoddi, Srikanth   +1 more
core   +3 more sources

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

open access: yesThe 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   +4 more
doaj   +5 more sources

Arctic ice cover, ice thickness and tipping points. [PDF]

open access: yesAmbio, 2012
We summarize the latest results on the rapid changes that are occurring to Arctic sea ice thickness and extent, the reasons for them, and the methods being used to monitor the changing ice thickness. Arctic sea ice extent had been shrinking at a relatively modest rate of 3-4% per decade (annually averaged) but after 1996 this speeded up to 10% per ...
Wadhams P.
europepmc   +4 more sources

Dependence of sea ice yield-curve shape on ice thickness [PDF]

open access: yesJournal 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   +17 more
core   +5 more sources

Ice thickness in the Northwest Passage [PDF]

open access: yesGeophysical Research Letters, 2015
AbstractRecently, the feasibility of commercial shipping in the ice‐prone Northwest Passage (NWP) has attracted a lot of attention. However, very little ice thickness information actually exists. We present results of the first ever airborne electromagnetic ice thickness surveys over the NWP carried out in April and May 2011 and 2015 over first‐year ...
Stephen E L Howell
exaly   +4 more sources

Assimilation of sea-ice concentration in a global climate model – physical and statistical aspects [PDF]

open access: yesOcean Science, 2013
We investigate the initialisation of Northern Hemisphere sea ice in the global climate model ECHAM5/MPI-OM by assimilating sea-ice concentration data. The analysis updates for concentration are given by Newtonian relaxation, and we discuss different ways
S. Tietsche   +3 more
doaj   +5 more sources

Ice thickness and bed topography of Jostedalsbreen ice cap, Norway [PDF]

open access: yesEarth System Science Data
We present an extensive dataset of ice thickness measurements from Jostedalsbreen ice cap, mainland Europe's largest glacier. The dataset consists of more than 351 000 point values of ice thickness distributed along ∼ 1100 km profile segments that cover ...
M. K. Gillespie   +20 more
doaj   +7 more sources

Discrimination Algorithm and Procedure of Snow Depth and Sea Ice Thickness Determination Using Measurements of the Vertical Ice Temperature Profile by the Ice-Tethered Buoys [PDF]

open access: yesSensors, 2018
Snow depth and sea ice thickness in the Polar Regions are significant indicators of climate change and have been measured over several decades by ice-tethered buoys.
Guangyu Zuo, Yinke Dou, Ruibo Lei
doaj   +2 more sources

Validation of SMOS sea ice thickness retrieval in the northern Baltic Sea [PDF]

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2015
The Soil Moisture and Ocean Salinity (SMOS) mission observes brightness temperatures at a low microwave frequency of 1.4 GHz (L-band) with a daily coverage of the polar regions.
Nina Maaß   +9 more
doaj   +4 more sources

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