Results 11 to 20 of about 476,017 (321)

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   +3 more sources

Improving Multiyear Sea Ice Concentration Estimates with Sea Ice Drift [PDF]

open access: yesRemote 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
doaj   +3 more sources

The EUMETSAT sea ice concentration climate data record [PDF]

open access: yesThe 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   +7 more sources

Sea ice concentration estimates from ICESat-2 linear ice fraction – Part 1: Multi-sensor comparison of sea ice concentration products [PDF]

open access: yesThe Cryosphere
Sea ice coverage is a key indicator of changes in polar and global climate. Observational estimates of the area and extent of sea ice are primarily derived from passive microwave surface emissions, which are used to develop gridded products of sea ice ...
E. M. Buckley, C. Horvat, P. Yoosiri
doaj   +3 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]

open access: yesThe 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

Brief communication: The challenge and benefit of using sea ice concentration satellite data products with uncertainty estimates in summer sea ice data assimilation [PDF]

open access: yesThe Cryosphere, 2016
Data assimilation experiments that aim at improving summer ice concentration and thickness forecasts in the Arctic are carried out. The data assimilation system used is based on the MIT general circulation model (MITgcm) and a local singular evolutive ...
Q. Yang   +5 more
doaj   +2 more sources

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

open access: yesTellus 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
semanticscholar   +4 more sources

Improvement of Arctic Sea Ice Multi-Parameter Assimilation on Sea Ice Concentration Simulation

open access: yesHaiyang Kaifa yu guanli
Based on the CICE sea ice model and the PDAF parallel data assimilation framework, this paper uses the local error subspace transform Kalman filter method (LESTKF) to assimilate the sea ice concentration, sea ice thickness and sea ice freeboard data into
ZHANG Sihan   +7 more
doaj   +1 more source

Pan-Arctic sea ice concentration from SAR and passive microwave [PDF]

open access: yesThe Cryosphere
Arctic sea ice monitoring is a fundamental prerequisite for anticipating and mitigating the impacts of climate change. Satellite-based sea ice observations have been subject to intense attention over the last few decades, with passive microwave (PMW ...
T. Wulf   +4 more
doaj   +4 more sources

Arctic sea ice variation in the Northwest Passage in 1979–2017 and its response to surface thermodynamics factors

open access: yesAdvances in Climate Change Research, 2021
Sea ice conditions in the Canadian Arctic Archipelago (CAA) play a key role in the navigation of the Northwest Passage (NWP). Limited by observed sea ice thickness data, the research of temporal and spatial variation of sea ice in the NWP is insufficient.
Xin-Yi Shen   +7 more
doaj   +1 more source

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