Results 11 to 20 of about 336,668 (362)

Molecular-dynamics simulation of clustering processes in sea-ice floes [PDF]

open access: yesPhys. Rev. E, 84, 056104 (2011), 2011
In seasonally ice-covered seas and along the margins of perennial ice pack, i.e. in regions with medium ice concentrations, the ice cover typically consists of separate floes interacting with each other by inelastic collisions. In this paper, hitherto unexplored analogies between this type of ice cover and two-dimensional granular gases are used to ...
Herman, Agnieszka
arxiv   +3 more sources

A new tracking algorithm for sea ice age distribution estimation [PDF]

open access: yesThe Cryosphere, 2018
A new algorithm for estimating sea ice age (SIA) distribution based on the Eulerian advection scheme is presented. The advection scheme accounts for the observed divergence or convergence and freezing or melting of sea ice and predicts consequent ...
A. A. Korosov   +8 more
doaj   +7 more sources

Sea ice concentration inversion based on different Arctic sea ice types

open access: yesFrontiers in Marine Science
The ASI algorithm uses the same sea ice and seawater tie-points when inverting polar sea ice concentration (SIC), but this approach does not fully consider the differences between different polar sea regions and the impact of different sea ice ...
Xingdong Wang   +4 more
doaj   +2 more sources

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
Adcroft, Alistair   +4 more
arxiv   +3 more sources

Optimising assimilation of sea ice concentration in an Earth system model with a multicategory sea ice model [PDF]

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2018
A data assimilation method capable of constraining the sea ice of an Earth system model in a dynamically consistent manner has the potential to enhance the accuracy of climate reconstructions and predictions.
M. Kimmritz   +5 more
doaj   +4 more sources

Variability of the Northern Annular Mode's signature in winter sea ice concentration [PDF]

open access: green, 2003
Historical winter sea ice concentration data are used to examine the relation between the Northern Annular Mode (NAM) and the sea ice concentration in the Nordic seas over the past 50 years.
Gerd Krahmann, Martin Visbeck
openalex   +3 more sources

DETAILED VALIDATION OF AMSR2 SEA ICE CONCENTRATION DATA USING MODIS DATA IN THE SEA OF OKHOTSK [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Global warming is one of the most serious problems we are facing in the 21st Century. Sea ice has an important role of reflecting the solar radiation back into space.
K. Cho, K. Naoki, J. Comiso
doaj   +1 more source

New methodology to estimate Arctic sea ice concentration from SMOS combining brightness temperature differences in a maximum-likelihood estimator [PDF]

open access: yesThe Cryosphere, 2017
Monitoring sea ice concentration is required for operational and climate studies in the Arctic Sea. Technologies used so far for estimating sea ice concentration have some limitations, for instance the impact of the atmosphere, the physical ...
C. Gabarro   +5 more
doaj   +1 more source

Multi-year spatial distribution of Antarctic sea ice (1988 - 2017)

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2021
In this study, we used daily sea-ice concentration data from the National Snow and Ice Data Center from 1988 to 2017 to investigate the spatial distribution of Antarctic sea ice by calculating the annual mean sea-ice concentration and multi-year sea ice ...
Xingdong Wang, Shuhui Yang, Zhankai Wu
doaj   +1 more source

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