Results 1 to 10 of about 45,805 (305)

Sea ice concentration and motion assimilation in a sea ice−ocean model

Journal of Geophysical Research, 2008
A sea ice concentration and motion assimilation scheme has been developed using the Met Office Forecasting Ocean Assimilation Model (FOAM). FOAM has been upgraded to include a more realistic sea ice rheology and a sea ice thickness distribution. The sea ice data assimilation scheme uses Special Sensor Microwave Imager (SSMI) and QuikSCAT satellite ...
Matthew J Martin, Adrian Hines
exaly   +2 more sources

SAR Algorithm for Sea Ice Concentration—Evaluation for the Baltic Sea

IEEE Geoscience and Remote Sensing Letters, 2012
A new sea ice concentration algorithm has been developed for C-band synthetic aperture radar data. Detailed autocorrelation statistics are derived and adopted by the algorithm, and a neural network is utilized for training against 41 sea ice charts. The charts are produced by ice analysts at the Swedish Ice Service and cover the Baltic Sea.
Aaron A Berg, Leif E B Eriksson, Anders Berg   +2 more
exaly   +2 more sources

Evaluation of the operational SAR based Baltic Sea ice concentration products

Advances in Space Research, 2015
Juha Karvonen
exaly  

Baltic Sea Ice Concentration Estimation Based on C-Band HH-Polarized SAR Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2012
Juha Karvonen
exaly  

Improved retrieval of sea ice total concentration from spaceborne passive microwave observations using numerical weather prediction model fields: An intercomparison of nine algorithms

Remote Sensing of Environment, 2006
Rasmus T Tonboe, Stefan Kern, Harald Schyberg   +2 more
exaly  

Sea Ice Concentration Estimation During Melt From Dual-Pol SAR Scenes Using Deep Convolutional Neural Networks: A Case Study

IEEE Transactions on Geoscience and Remote Sensing, 2016
K Andrea Scott, Linlin Xu, David A Clausi   +2 more
exaly  

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, R. Graversen, K. H. Christensen, P. Rostosky, K. Wang   +4 more
doaj   +6 more sources

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, Mohammed Shokr, Georg Heygster, Gunnar Spreen   +3 more
doaj   +4 more sources

Intercomparison of passive microwave sea ice concentration retrievals over the high‐concentration Arctic sea ice [PDF]

Journal of Geophysical Research, 2007
[1] 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 ...
Rasmus T Tonboe, Lars Kaleschke, Georg Heygster   +2 more
exaly   +3 more sources

Accounting for Label Errors When Training a Convolutional Neural Network to Estimate Sea Ice Concentration Using Operational Ice Charts

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, K. Andrea Scott, Leif Toudal Pedersen   +2 more
doaj   +3 more sources