J
Joseph Sedlar
Researcher at Stockholm University
Publications - 47
Citations - 2584
Joseph Sedlar is an academic researcher from Stockholm University. The author has contributed to research in topics: Arctic & Sea ice. The author has an hindex of 27, co-authored 39 publications receiving 2145 citations. Previous affiliations of Joseph Sedlar include Swedish Meteorological and Hydrological Institute.
Papers
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Journal ArticleDOI
An Arctic CCN-limited cloud-aerosol regime
Thorsten Mauritsen,Joseph Sedlar,Michael Tjernström,Caroline Leck,M. Martin,Matthew D. Shupe,S. Sjogren,B. Sierau,P. O. G. Persson,Ian M. Brooks,Erik Swietlicki +10 more
TL;DR: In this article, the authors show that over the central Arctic Ocean, where there is frequently a lack of aerosol particles upon which clouds may form, a small increase in aerosol loading may enhance cloudiness thereby likely causing a climatologically significant warming at the ice-covered Arctic surface.
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CLARA-A2: the second edition of the CM SAF cloud and radiation data record from 34 years of global AVHRR data
Karl-Göran Karlsson,Kati Anttila,Jörg Trentmann,Martin Stengel,Jan Fokke Meirink,Abhay Devasthale,Timo Hanschmann,Steffen Kothe,Emmihenna Jääskeläinen,Joseph Sedlar,Nikos Benas,Gerd-Jan van Zadelhoff,Cornelia Schlundt,Diana Stein,Stephan Finkensieper,Nina Håkansson,Rainer Hollmann +16 more
TL;DR: The second edition of the satellite-derived climate data record CLARA (The CM-SAF Cloud, Albedo And Surface Radiation dataset from AVHRR data) is described in this article.
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A transitioning Arctic surface energy budget: the impacts of solar zenith angle, surface albedo and cloud radiative forcing
Joseph Sedlar,Michael Tjernström,Thorsten Mauritsen,Matthew D. Shupe,Ian M. Brooks,P. Ola G. Persson,Cathryn E. Birch,Caroline Leck,Anders Sirevaag,Marcel Nicolaus,Marcel Nicolaus +10 more
TL;DR: In this paper, the Arctic Summer Cloud Ocean Study (ASCOS) was used to estimate the net radiative effect of clouds on the surface relative to clear skies, and the mean energy budget residuals remained small and near zero for 1 week until once again temperatures dropped rapidly and the residuals became negative.
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Advances in understanding and parameterization of small-scale physical processes in the marine Arctic climate system : a review
Timo Vihma,Timo Vihma,Roberta Pirazzini,Ilker Fer,Ian A. Renfrew,Joseph Sedlar,Michael Tjernström,Christof Lüpkes,Tiina Nygård,Dirk Notz,Jérôme Weiss,David Marsan,Bin Cheng,Gerit Birnbaum,Sebastian Gerland,Dmitry Chechin,J. C. Gascard +16 more
TL;DR: In this paper, the authors reviewed, synthesized, and discussed the recent advances in understanding small-scale physical processes in the atmosphere, sea ice, and ocean, including wave-turbulence interactions and the exchange of heat and salt at the ice-ocean interface.
Journal ArticleDOI
Cloud and boundary layer interactions over the Arctic sea ice in late summer
Matthew D. Shupe,P. O. G. Persson,Ian M. Brooks,Michael Tjernström,Joseph Sedlar,Thorsten Mauritsen,S. Sjogren,Caroline Leck +7 more
TL;DR: In this article, the Arctic Summer Cloud Ocean Study (ASCOS) was used to characterize a week-long period dominated by low-level, mixed-phase, stratocumulus clouds.