Zobrazeno 1 - 10
of 59
pro vyhledávání: '"S. Tietsche"'
Autor:
J. J. Day, S. Keeley, G. Arduini, L. Magnusson, K. Mogensen, M. Rodwell, I. Sandu, S. Tietsche
Publikováno v:
Weather and Climate Dynamics, Vol 3, Pp 713-731 (2022)
The drive to develop environmental prediction systems that are seamless across both weather and climate timescales has culminated in the development and use of Earth system models, which include a coupled representation of the atmosphere, land, ocean
Externí odkaz:
https://doaj.org/article/e9803d076c9e4646a5849e8d3664716e
Autor:
B. Balan-Sarojini, S. Tietsche, M. Mayer, M. Balmaseda, H. Zuo, P. de Rosnay, T. Stockdale, F. Vitart
Publikováno v:
The Cryosphere, Vol 15, Pp 325-344 (2021)
Nowadays many seasonal forecasting centres provide dynamical predictions of sea ice. While initializing sea ice by assimilating sea ice concentration (SIC) is common, constraining initial conditions of sea ice thickness (SIT) is only in its early sta
Externí odkaz:
https://doaj.org/article/b441a6b10817434a88a44794db6a9fb7
Publikováno v:
The Cryosphere, Vol 14, Pp 165-182 (2020)
Arctic summer sea ice experiences rapid changes in its sea-ice concentration, surface albedo, and the melt pond fraction. This affects the energy balance of the region and demands an accurate knowledge of those surface characteristics in climate mode
Externí odkaz:
https://doaj.org/article/4e308db98ed3480bbc5976575fe51d5b
Publikováno v:
Ocean Science, Vol 15, Pp 779-808 (2019)
The ECMWF OCEAN5 system is a global ocean and sea-ice ensemble of reanalysis and real-time analysis. This paper gives a full description of the OCEAN5 system, with the focus on upgrades of system components with respect to its predecessors, ORAS4 and
Externí odkaz:
https://doaj.org/article/f78cbb96bdc6456eb9ca6283da27126c
Autor:
S. J. Johnson, T. N. Stockdale, L. Ferranti, M. A. Balmaseda, F. Molteni, L. Magnusson, S. Tietsche, D. Decremer, A. Weisheimer, G. Balsamo, S. P. E. Keeley, K. Mogensen, H. Zuo, B. M. Monge-Sanz
Publikováno v:
Geoscientific Model Development, Vol 12, Pp 1087-1117 (2019)
In this paper we describe SEAS5, ECMWF's fifth generation seasonal forecast system, which became operational in November 2017. Compared to its predecessor, System 4, SEAS5 is a substantially changed forecast system. It includes upgraded versions of t
Externí odkaz:
https://doaj.org/article/0d4267a486e4466cb63356fc8268be67
Publikováno v:
The Cryosphere, Vol 12, Pp 2051-2072 (2018)
L-band radiance measurements of the Earth's surface such as those from the SMOS satellite can be used to retrieve the thickness of thin sea ice in the range 0–1 m under cold surface conditions. However, retrieval uncertainties can be large due t
Externí odkaz:
https://doaj.org/article/b48a629b96ab415ca5e2b1bb1dfe5198
Autor:
J. J. Day, S. Tietsche, M. Collins, H. F. Goessling, V. Guemas, A. Guillory, W. J. Hurlin, M. Ishii, S. P. E. Keeley, D. Matei, R. Msadek, M. Sigmond, H. Tatebe, E. Hawkins
Publikováno v:
Geoscientific Model Development, Vol 9, Iss 6, Pp 2255-2270 (2016)
Recent decades have seen significant developments in climate prediction capabilities at seasonal-to-interannual timescales. However, until recently the potential of such systems to predict Arctic climate had rarely been assessed. This paper describes
Externí odkaz:
https://doaj.org/article/30d84b101f6046718f86f1033d6bc155
Publikováno v:
Ocean Science, Vol 9, Iss 1, Pp 19-36 (2013)
We investigate the initialisation of Northern Hemisphere sea ice in the global climate model ECHAM5/MPI-OM by assimilating sea-ice concentration data. The analysis updates for concentration are given by Newtonian relaxation, and we discuss different
Externí odkaz:
https://doaj.org/article/9b71cbe2e6474e22bad77abb318987b3
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Akademický článek
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