Numéro |
J. Phys. IV France
Volume 121, December 2004
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Page(s) | 125 - 137 | |
DOI | https://doi.org/10.1051/jp4:2004121007 |
J. Phys. IV France 121 (2004) 125-137
DOI: 10.1051/jp4:2004121007
The atmospheric response to boundary forcing and the use of diagnostic models
N.M.J. HallCNRS/LTHE, BP. 53, 38041 Grenoble Cedex 9, France
Abstract
A philosophy of hierarchical modelling is espoused in which models of
intermediate complexity bridge the gap between comprehensive simulations and
theory. These diagnostic models may have part of the
solution constrained by observations, allowing the study of isolated processes
in a simplified but realistic setting. To illustrate the use of such models
examples are given from the influence of mountains and sea surface temperature
variations on the large scale atmospheric circulation. Aspects of the problem
such as time dependence, nonlinearity and transient feedback are discussed in
turn and the models developed to address these problems are described. Emphasis
throughout is on modelling techniques rather than on physical mechanisms.
© EDP Sciences 2004