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 +1 more source
Better constraints on the sea-ice state using global sea-ice data assimilation [PDF]
Geoscientific Model Development, 2012 Short-term and decadal sea-ice prediction systems need a realistic initial state, generally obtained using ice–ocean model simulations with data assimilation. However, only sea-ice concentration and velocity data are currently assimilated.
P. Mathiot +5 more
doaj +1 more source
A NEW WEATHER FILTER FOR REDUCING WEATHER EFFECT IN CALCULATING SEA ICE CONCENTRATION FROM AMSR2 DATA [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 Ice concentration is one of the most fundamental parameters of sea ice which can be calculated from brightness temperatures measured by passive microwave radiometers such as AMSR2 onboard satellites.
K. Cho, K. Naoki
doaj +1 more source
Estimation of sea ice parameters from sea ice model with assimilated ice concentration and SST [PDF]
The Cryosphere, 2018 Abstract. A multi-category numerical sea ice model CICE along with data assimilation was used to derive sea ice parameters in the region of Baffin Bay and Labrador Sea. The assimilation of ice concentration was performed using the data derived from Advanced Microwave Scanning Radiometer (AMSR-E & AMSR2).
Siva Prasad +5 more
openaire +3 more sources
Characterization of Moisture Sources for Austral Seas and Relationship with Sea Ice Concentration [PDF]
Atmosphere, 2019 In this study, the moisture sources acting over each sea (Weddell, King Haakon VII, East Antarctic, Amundsen-Bellingshausen, and Ross-Amundsen) of the Southern Ocean during 1980–2015 are identified with the FLEXPART Lagrangian model and by using two approaches: backward and forward analyses.
Michelle Simões Reboita +5 more
openaire +5 more sources
VALIDATION OF ASMR2 SEA ICE CONCENTRATION DATA USING MODIS DATA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 Passive microwave radiometer AMSR2 was launched by JAXA in May 2012 on-board GCOM-W satellite. The antenna diameter of AMSR2 is 2.0 m which provide highest spatial resolution as a passive microwave radiometer in space.
K. Cho, R. Nagao, K. Naoki
doaj +1 more source
Optimization of the k-nearest-neighbors model for summer Arctic Sea ice prediction
Frontiers in Marine Science, 2023 The Arctic sea ice plays a significant role in climate-related processes and has a considerable effect on humans, however accurately predicting the Arctic sea ice concentration is still challenging.
Yongcheng Lin +9 more
doaj +1 more source
Intercomparison of passive microwave sea ice concentration retrievals over the high‐concentration Arctic sea ice [PDF]
Journal of Geophysical Research: Oceans, 2007 Measurements of sea ice concentration from the Special Sensor Microwave Imager (SSM/I) using seven different algorithms are compared to ship observations, sea ice divergence estimates from the Radarsat Geophysical Processor System, and ice and water surface type classification of 59 wide‐swath synthetic aperture radar (SAR) scenes.
Leif Toudal Pedersen +4 more
openaire +2 more sources
Southern Ocean sea ice concentration budgets of five ocean-sea ice reanalyses
Climate Dynamics, 2022 AbstractIn this study, sea ice concentration (SIC) budgets were calculated for five ocean-sea ice reanalyses (CFSR, C-GLORSv7, GLORYS12v1, NEMO-EnKF and ORAS5), in the Southern Ocean and compared with observations. Benefiting from the assimilation of SIC, the reanalysis products display a realistic representation of sea ice extent as well as sea ice ...
Yafei Nie +6 more
openaire +3 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 +1 more source