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Stefan Kern
Researcher at University of Hamburg
Publications - 81
Citations - 2313
Stefan Kern is an academic researcher from University of Hamburg. The author has contributed to research in topics: Sea ice & Sea ice concentration. The author has an hindex of 25, co-authored 75 publications receiving 1717 citations. Previous affiliations of Stefan Kern include University of Bremen & Max Planck Society.
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Version 2 of the EUMETSAT OSI SAF and ESA CCI sea-ice concentration climate data records
Thomas Lavergne,Atle Macdonald Sørensen,Stefan Kern,Rasmus Tonboe,Dirk Notz,Signe Aaboe,Louisa Bell,Gorm Dybkjær,Steinar Eastwood,Carolina Gabarró,Georg Heygster,Mari Anne Killie,Matilde Brandt Kreiner,John Lavelle,Roberto Saldo,Stein Sandven,Leif Toudal Pedersen +16 more
TL;DR: In this paper, the OSI-450, SICCI-25km and SicCI-50km climate data records are derived from passive microwave satellite data and offer three distinct advantages compared to existing records: first, all three records provide quantitative information on uncertainty and possibly applied filtering at every grid point and every time step.
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Inter-comparison and evaluation of sea ice algorithms: towards further identification of challenges and optimal approach using passive microwave observations
Natalia Ivanova,Leif Toudal Pedersen,Rasmus Tonboe,Stefan Kern,Georg Heygster,Thomas Lavergne,Atle Macdonald Sørensen,Roberto Saldo,Gorm Dybkjær,Ludovic Brucker,Ludovic Brucker,Mohammed Shokr +11 more
TL;DR: In this article, a hybrid approach is suggested to retrieve sea ice concentration globally for climate monitoring purposes, which consists of a combination of two algorithms plus dynamic tie points implementation and atmospheric correction of input brightness temperatures.
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Sea-ice transport driving Southern Ocean salinity and its recent trends.
TL;DR: Using satellite observations supplemented by sea-ice reconstructions, it is estimated that wind-driven northward freshwater transport by sea ice increased by 20 ± 10 per cent between 1982 and 2008, and the strongest and most robust increase occurred in the Pacific sector, coinciding with the largest observed salinity changes.
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Fram Strait sea ice volume export estimated between 2003 and 2008 from satellite data
TL;DR: In this paper, satellite-based estimates of monthly sea ice volume exports through the Fram Strait for the years 2003 to 2008 are presented, which are obtained from individual satellite observations of sea ice thickness, area, and drift.
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Investigating High-Resolution AMSR2 Sea Ice Concentrations during the February 2013 Fracture Event in the Beaufort Sea
TL;DR: ASI-3k are able to reproduce lead structure and size in the sea ice cover, which are not or are less visible in the other SIC data, which will be valuable for selecting a SIC product for studies of the interaction between ocean, ice, and atmosphere in the polar regions.