Improving Multiyear Sea Ice Concentration Estimates with Sea Ice Drift [PDF]
Remote Sensing, 2016 Multiyear ice (MYI) concentration can be retrieved from passive or active microwave remote sensing observations. One of the algorithms that combines both observations is the Environmental Canada Ice Concentration Extractor (ECICE).
Yufang Ye +3 more
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Vertical ocean heat redistribution sustaining sea-ice concentration trends in the Ross Sea. [PDF]
Nat Commun, 2017 Several processes have been hypothesized to explain the slight overall expansion of Antarctic sea ice over the satellite observation era, including externally forced changes in local winds or in the Southern Ocean’s hydrological cycle, as well as ...
Lecomte O +5 more
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Impact of assimilating sea ice concentration, sea ice thickness and snow depth in a coupled ocean–sea ice modelling system [PDF]
The Cryosphere, 2019 The accuracy of the initial state is very important for the quality of a forecast, and data assimilation is crucial for obtaining the best-possible initial state.
S. Fritzner +4 more
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The impact of melt ponds on summertime microwave brightness temperatures and sea-ice concentrations [PDF]
The Cryosphere, 2016 Sea-ice concentrations derived from satellite microwave brightness temperatures are less accurate during summer. In the Arctic Ocean the lack of accuracy is primarily caused by melt ponds, but also by changes in the properties of snow and the sea-ice ...
S. Kern +5 more
doaj +6 more sources
On the assimilation of ice velocity and concentration data into large-scale sea ice models [PDF]
Ocean Science, 2007 Data assimilation into sea ice models designed for climate studies has started about 15 years ago. In most of the studies conducted so far, it is assumed that the improvement brought by the assimilation is straightforward.
Valérie Dulière, Thierry Fichefet
core +13 more sources
Exponentially decaying modes and long-term prediction of sea ice concentration using Koopman mode decomposition. [PDF]
Sci Rep, 2020 Sea ice cover in the Arctic and Antarctic is an important indicator of changes in the climate, with important environmental, economic and security consequences.
Hogg J, Fonoberova M, Mezić I.
europepmc +3 more sources
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Convolutional neural networks (CNNs) are being increasingly investigated as a means to extract sea ice concentration from synthetic aperture radar (SAR) in an automated manner. This is often done using ice charts as training data.
Manveer Singh Tamber +2 more
doaj +2 more sources
The 2018 North Greenland polynya observed by a newly introduced merged optical and passive microwave sea-ice concentration dataset [PDF]
The Cryosphere, 2019 Observations of sea-ice concentration are available from satellites year-round and almost weather-independently using passive microwave radiometers at resolutions down to 5 km.
V. Ludwig +7 more
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Remote Sensing, 2023 When navigating ships in cold regions, sea ice concentration plays a crucial role in determining a ship’s navigability. However, automatically extracting the sea ice concentration and floe size distribution remains challenging, due to the difficulty in ...
Li Zhou, Jinyan Cai, Shifeng Ding
doaj +2 more sources
Variability of the Northern Annular Mode's signature in winter sea ice concentration [PDF]
, 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