Results 21 to 30 of about 177,834 (204)

Multidecadal Arctic sea ice thickness and volume derived from ice age [PDF]

open access: yesThe Cryosphere, 2020
Sea ice is a key component of the Arctic climate system, and has impacts on global climate. Ice concentration, thickness, and volume are among the most important Arctic sea ice parameters.
Y. Liu, J. R. Key, X. Wang, M. Tschudi
doaj   +1 more source

Feasibility of retrieving Arctic sea ice thickness from the Chinese HY-2B Ku-band radar altimeter [PDF]

open access: yesThe Cryosphere, 2023
With the continuous development of the China ocean dynamic environment satellite series (Haiyang-2, HY-2), it is urgent to explore the potential application of HY-2B in Arctic sea ice thickness retrievals.
Z. Dong   +10 more
doaj   +1 more source

Evaluation of sea-ice thickness from four reanalyses in the Antarctic Weddell Sea [PDF]

open access: yesThe Cryosphere, 2021
Ocean–sea-ice coupled models constrained by various observations provide different ice thickness estimates in the Antarctic. We evaluate contemporary monthly ice thickness from four reanalyses in the Weddell Sea: the German contribution of the project ...
Q. Shi   +5 more
doaj   +1 more source

Spatiotemporal Analysis and Modeling of Sea Ice Growth Rate in Nella Fjord, Antarctica: Based on Observations During the 36th Chinese National Antarctic Research Expedition in 2020

open access: yesFrontiers in Environmental Science, 2022
Obtaining field sea ice data is crucial for the validation and improvement of satellite data and numerical models. During the 36th Chinese National Antarctic Research Expedition, seven field observations covering the whole area were conducted in Nella ...
Xiaoyu Sun   +6 more
doaj   +1 more source

Improving Met Office seasonal predictions of Arctic sea ice using assimilation of CryoSat-2 thickness [PDF]

open access: yesThe Cryosphere, 2018
Interest in seasonal predictions of Arctic sea ice has been increasing in recent years owing, primarily, to the sharp reduction in Arctic sea-ice cover observed over the last few decades, a decline that is projected to continue.
E. W. Blockley, K. A. Peterson
doaj   +1 more source

Impact assessment of snow thickness, sea ice density and water density in CryoSat-2-derived sea ice thickness [PDF]

open access: yesThe Cryosphere
Sea ice thickness is an essential climate variable, which is often derived from satellite altimetry freeboard estimates, e.g., by CryoSat-2. In order to convert freeboard to sea ice thickness, assumptions are needed for snow thickness, snow density, sea ...
I. Sievers   +2 more
doaj   +1 more source

Relationships between Arctic sea ice drift and strength modelled by NEMO-LIM3.6 [PDF]

open access: yesThe Cryosphere, 2017
Sea ice cover and thickness have substantially decreased in the Arctic Ocean since the beginning of the satellite era. As a result, sea ice strength has been reduced, allowing more deformation and fracturing and leading to increased sea ice drift ...
D. Docquier   +6 more
doaj   +1 more source

Deep learning of systematic sea ice model errors from data assimilation increments [PDF]

open access: yes, 2023
Data assimilation is often viewed as a framework for correcting short-term error growth in dynamical climate model forecasts. When viewed on the time scales of climate however, these short-term corrections, or analysis increments, can closely mirror the systematic bias patterns of the dynamical model. In this study, we use convolutional neural networks
arxiv   +1 more source

Improvement and Sensitivity Analysis of Thermal Thin-Ice Thickness Retrievals [PDF]

open access: yes, 2012
Considering the sea ice decline in the Arctic during the last decades, polynyas are of high research interest since these features are core areas of new ice formation.
Adams, Susann   +3 more
core   +1 more source

Rigorous Analysis and Dynamics of Hibler's sea ice model [PDF]

open access: yes, 2021
This article develops for the first time a rigorous analysis of Hibler's model of sea ice dynamics. Identifying Hibler's ice stress as a quasilinear second order operator and regarding Hibler's model as a quasilinear evolution equation, it is shown that Hibler's coupled sea ice model, i.e., the model coupling velocity, thickness and compactness of sea ...
arxiv   +1 more source

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