Zobrazeno 1 - 10
of 254
pro vyhledávání: '"Stefan Kern"'
Publikováno v:
Advances in Climate Change Research, Vol 13, Iss 5, Pp 676-687 (2022)
Sea ice hinders the navigability of the Arctic, especially in winter and spring. However, three Arc7 ice-class Liquefied Natural Gas carrying vessels safely transited the Northern Sea Route (NSR) without icebreaker assistance in January 2021. More an
Externí odkaz:
https://doaj.org/article/5c6cb10ae93e429b88d38e11717441f3
Autor:
Rasmus T. Tonboe, Vishnu Nandan, Marko Makynen, Leif Toudal Pedersen, Stefan Kern, Thomas Lavergne, Johanne Oelund, Gorm Dybkjaer, Roberto Saldo, Marcus Huntemann
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 15, Pp 1309-1326 (2022)
Sea ice concentration algorithms using brightness temperatures ($T_{B}$) from satellite microwave radiometers are used to compute sea ice concentration ($c_{\text{ice}}$), sea ice extent, and generate sea ice climate data records. Therefore, it is im
Externí odkaz:
https://doaj.org/article/3cb28648ebe1409b9e8b74ddd2cbd710
Autor:
Stefan Kern
Publikováno v:
Remote Sensing, Vol 13, Iss 21, p 4421 (2021)
The European Organisation for the Exploitation of Meteorological Satellites-Ocean and Sea Ice Satellite Application Facility–European Space Agency-Climate Change Initiative (EUMETSAT-OSISAF–ESA-CCI) Level-4 sea-ice concentration (SIC) climate dat
Externí odkaz:
https://doaj.org/article/a4a391dffbe34cd2922e91bdd405b752
Autor:
Louise Newman, Petra Heil, Rowan Trebilco, Katsuro Katsumata, Andrew Constable, Esmee van Wijk, Karen Assmann, Joana Beja, Phillippa Bricher, Richard Coleman, Daniel Costa, Steve Diggs, Riccardo Farneti, Sarah Fawcett, Sarah T. Gille, Katharine R. Hendry, Sian Henley, Eileen Hofmann, Ted Maksym, Matthew Mazloff, Andrew Meijers, Michael M. Meredith, Sebastien Moreau, Burcu Ozsoy, Robin Robertson, Irene Schloss, Oscar Schofield, Jiuxin Shi, Elisabeth Sikes, Inga J. Smith, Sebastiaan Swart, Anna Wahlin, Guy Williams, Michael J. M. Williams, Laura Herraiz-Borreguero, Stefan Kern, Jan Lieser, Robert A. Massom, Jessica Melbourne-Thomas, Patricia Miloslavich, Gunnar Spreen
Publikováno v:
Frontiers in Marine Science, Vol 6 (2019)
The Southern Ocean is disproportionately important in its effect on the Earth system, impacting climatic, biogeochemical, and ecological systems, which makes recent observed changes to this system cause for global concern. The enhanced understanding
Externí odkaz:
https://doaj.org/article/c8e1af21a22044789315bdf1655d39c9
Autor:
Isabel C. Metz, Joost Ellerbroek, Thorsten Mühlhausen, Dirk Kügler, Stefan Kern, Jacco M. Hoekstra
Publikováno v:
Aerospace, Vol 8, Iss 1, p 17 (2021)
Involving air traffic controllers and pilots into the bird strike prevention process is considered an essential step to increase aviation and avian safety. Prior to implementing operational measures such as real-time warning systems, it is vital to e
Externí odkaz:
https://doaj.org/article/295c6f4056dc428788137ff04a95b436
Publikováno v:
PLoS ONE, Vol 13, Iss 10, p e0203222 (2018)
In the backdrop of global warming, Antarctic sea-ice variability showed an overall expansion with the regional heterogeneity of increasing and decreasing patterns. Analysis of satellite derived sea-ice extent, during 1979 to 2015, in the Indian Ocean
Externí odkaz:
https://doaj.org/article/0226611922204bb2bf49f034654c1a87
Publikováno v:
Remote Sensing, Vol 6, Iss 5, Pp 3841-3856 (2014)
Leads with a length on the order of 1000 km occurred in the Beaufort Sea in February 2013. These leads can be observed in Moderate Resolution Imaging Spectroradiometer (MODIS) images under predominantly clear sky conditions. Sea ice concentrations (S
Externí odkaz:
https://doaj.org/article/5edccd889e16427282af5d8db137945c
Autor:
Stefan Kern, Burcu Ozsoy
Publikováno v:
Remote Sensing, Vol 11, Iss 19, p 2323 (2019)
Snow depth on sea ice is a major constituent of the marine cryosphere. It is a key parameter for the derivation of sea-ice thickness from satellite altimetry. One way to retrieve the basin-scale snow depth on sea ice is by satellite microwave radiome
Externí odkaz:
https://doaj.org/article/994e44924451461cae84f163e36e2c28
Autor:
Sebastian Gerland, David Barber, Walt Meier, Christopher J Mundy, Marika Holland, Stefan Kern, Zhijun Li, Christine Michel, Donald K Perovich, Takeshi Tamura
Publikováno v:
Environmental Research Letters, Vol 14, Iss 4, p 043002 (2019)
While Arctic sea ice is changing, new observation methods are developed and process understanding improves, whereas gaps in observations and understanding evolve. Some previous gaps are filled, while others remain, or come up new. Knowing about the s
Externí odkaz:
https://doaj.org/article/c5745ce97a8840cbad04f6e3790ddec3
Autor:
Stefan Kern, Burcu Ozsoy-Çiçek
Publikováno v:
Remote Sensing, Vol 8, Iss 6, p 450 (2016)
Snow on Antarctic sea ice plays a key role for sea ice physical processes and complicates retrieval of sea ice thickness using altimetry. Current methods of snow depth retrieval are based on satellite microwave radiometry, which perform best for dry,
Externí odkaz:
https://doaj.org/article/7932a2464815444e990a97c5863f0f92