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
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
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
doaj +2 more sources
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 +5 more sources
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
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
europepmc +2 more sources
New methodology to estimate Arctic sea ice concentration from SMOS combining brightness temperature differences in a maximum-likelihood estimator [PDF]
The 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 +2 more sources
The EUMETSAT sea ice concentration climate data record [PDF]
The Cryosphere, 2016 An Arctic and Antarctic sea ice area and extent dataset has been generated by EUMETSAT's Ocean and Sea Ice Satellite Application Facility (OSISAF) using the record of microwave radiometer data from NASA's Nimbus 7 Scanning Multichannel Microwave ...
R. T. Tonboe +8 more
doaj +2 more sources
Improving Arctic sea ice edge forecasts by assimilating high horizontal resolution sea ice concentration data into the US Navy's ice forecast systems [PDF]
The Cryosphere, 2015 This study presents the improvement in ice edge error within the US Navy's operational sea ice forecast systems gained by assimilating high horizontal resolution satellite-derived ice concentration products.
P. G. Posey +10 more
doaj +2 more sources
Sea ice concentration inversion based on different Arctic sea ice types
Frontiers in Marine ScienceThe 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