A coupled high resolution atmosphere-ocean model for the BALTEX region.

Hagedorn, Renate, Lehmann, Andreas and Jacob, D. (2000) A coupled high resolution atmosphere-ocean model for the BALTEX region. Meteorologische Zeitschrift, 9 (1). pp. 7-20.

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A three-dimensional fully coupled high resolution atmosphere-ocean model for the BALTEX (Baltic Sea Experiment)
region has been developed from two independent models, the atmospheric regional model REMO
and the Kiel Baltic Sea model. The coupled model was set up in the framework of the BALTEX program to
contribute to one of its major objectives, the investigation and quantification of the energy and water cycle in
the Baltic Sea and its catchment area. As a first step towards the fully coupled system, sensitivity studies with
different forcings for its uncoupled components, the atmosphere and ocean models. were performed. These
sensitivity studies demonstrated that both models are able to produce rea onable results which in turn can
act as forcing for the respective other model. In the first simulation of the fu lly coupled system the modeled
sea surface temperatures (SST) agree well with satellite observations. Thus they are at least as good as the
previously used SSTs from operational analyses and in some cases even better. The detailed evaluation of the
coupled model results reveals that often the coupling effects are superimposed by advective influences and
that only under specific conditions the atmospheric variables show a remarkable response to different fluxes.
The atmosphere-ocean model is coupled directly via the corresponding fluxes across the interface between
atmosphere and ocean. For the here presented simulation no flux corrections were necessary. Thus a consistent
model system has been developed which can be utilized for further studies of the energy and water cycle
in the BALTEX area.

Document Type: Article
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-TM Theory and Modeling
Refereed: Yes
Open Access Journal?: No
ISSN: 0941-2948
Date Deposited: 18 Feb 2008 17:24
Last Modified: 09 Jul 2018 06:49
URI: http://oceanrep.geomar.de/id/eprint/3618

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