Zobrazeno 1 - 10
of 95
pro vyhledávání: '"F, Kauker"'
Publikováno v:
The Cryosphere, Vol 16, Pp 1873-1887 (2022)
Single-column sea ice models are used to focus on the thermodynamic evolution of the ice. Generally, these models are forced by atmospheric reanalysis in the absence of atmospheric in situ observations. Here we assess the sea ice thickness simulated
Externí odkaz:
https://doaj.org/article/a34e92cbaa0a452b95cb736729723d30
Publikováno v:
The Cryosphere, Vol 15, Pp 169-181 (2021)
Sea ice in the Baffin Bay plays an important role in deep water formation in the Labrador Sea and contributes to the variation of the Atlantic meridional overturning circulation (AMOC) on larger scales. Sea-ice data from locally merged satellite obse
Externí odkaz:
https://doaj.org/article/196b7d14f7cf49e8a49842b152292e28
Autor:
T. Krumpen, F. Birrien, F. Kauker, T. Rackow, L. von Albedyll, M. Angelopoulos, H. J. Belter, V. Bessonov, E. Damm, K. Dethloff, J. Haapala, C. Haas, C. Harris, S. Hendricks, J. Hoelemann, M. Hoppmann, L. Kaleschke, M. Karcher, N. Kolabutin, R. Lei, J. Lenz, A. Morgenstern, M. Nicolaus, U. Nixdorf, T. Petrovsky, B. Rabe, L. Rabenstein, M. Rex, R. Ricker, J. Rohde, E. Shimanchuk, S. Singha, V. Smolyanitsky, V. Sokolov, T. Stanton, A. Timofeeva, M. Tsamados, D. Watkins
Publikováno v:
The Cryosphere, Vol 14, Pp 2173-2187 (2020)
In September 2019, the research icebreaker Polarstern started the largest multidisciplinary Arctic expedition to date, the MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate) drift experiment. Being moored to an ice floe f
Externí odkaz:
https://doaj.org/article/4e133eac0a5c455db84aff0183980227
Publikováno v:
The Cryosphere, Vol 13, Pp 2051-2073 (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. Thermal infrared radiometers provide data with a resolution of 1 km b
Externí odkaz:
https://doaj.org/article/325cfdb888f942c087165200e632cf95
Autor:
T. Kaminski, F. Kauker, L. Toudal Pedersen, M. Voßbeck, H. Haak, L. Niederdrenk, S. Hendricks, R. Ricker, M. Karcher, H. Eicken, O. Gråbak
Publikováno v:
The Cryosphere, Vol 12, Pp 2569-2594 (2018)
Assimilation of remote-sensing products of sea ice thickness (SIT) into sea ice–ocean models has been shown to improve the quality of sea ice forecasts. Key open questions are whether assimilation of lower-level data products such as radar freeb
Externí odkaz:
https://doaj.org/article/d0f016a5cec1438b8e79c3ce4d70564b
Autor:
H. Sumata, F. Kauker, M. Karcher, B. Rabe, M.-L. Timmermans, A. Behrendt, R. Gerdes, U. Schauer, K. Shimada, K.-H. Cho, T. Kikuchi
Publikováno v:
Ocean Science, Vol 14, Pp 161-185 (2018)
Any use of observational data for data assimilation requires adequate information of their representativeness in space and time. This is particularly important for sparse, non-synoptic data, which comprise the bulk of oceanic in situ observations
Externí odkaz:
https://doaj.org/article/625a1a5df6854448aabfc9dbe6b3efb0
Publikováno v:
The Cryosphere, Vol 9, Iss 4, Pp 1721-1733 (2015)
We present a quantitative network design (QND) study of the Arctic sea ice–ocean system using a software tool that can evaluate hypothetical observational networks in a variational data assimilation system. For a demonstration, we evaluate two idea
Externí odkaz:
https://doaj.org/article/2def593d59554c769057dda43dd133a6
Akademický článek
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Publikováno v:
Ocean Science, Vol 9, Iss 4, Pp 609-630 (2013)
Two types of optimization methods were applied to a parameter optimization problem in a coupled ocean–sea ice model of the Arctic, and applicability and efficiency of the respective methods were examined. One optimization utilizes a finite differen
Externí odkaz:
https://doaj.org/article/d41b27d2434b4147826d52b1e3e786b1
Akademický článek
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