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@ARTICLE{Ern:53480,
author = {Ern, M. and Preusse, P. and Warner, C. D.},
title = {{S}ome experimental constraints for spectral parameters
used in the {W}arner and {M}c{I}ntyre gravity wave
parameterization scheme},
journal = {Atmospheric chemistry and physics},
volume = {6},
issn = {1680-7316},
address = {Katlenburg-Lindau},
publisher = {EGU},
reportid = {PreJuSER-53480},
pages = {4361 - 4381},
year = {2006},
note = {Record converted from VDB: 12.11.2012},
abstract = {In order to incorporate the effect of gravity waves (GWs)
on the atmospheric circulation most global circulation
models (GCMs) employ gravity wave parameterization schemes.
To date, GW parameterization schemes in GCMs are used
without experimental validation of the set of global
parameters assumed for the GW launch spectrum. This paper
focuses on the Warner and McIntyre GW parameterization
scheme. Ranges of parameters compatible with absolute values
of gravity wave momentum flux (GW-MF) derived from CRISTA-1
and CRISTA-2 satellite measurements are deduced for several
of the parameters and the limitations of both model and
measurements are discussed. The findings presented in this
paper show that the initial guess of spectral parameters
provided by Warner and McIntyre ( 2001) are some kind of
compromise with respect to agreement of absolute values and
agreement of the horizontal structures found in both
measurements and model results. Better agreement can be
achieved by using a vertical wavenumber launch spectrum with
a wider saturated spectral range and reduced spectral power
in the unsaturated part. However, even with this optimized
set of global launch parameters not all features of the
measurements are matched. This indicates that for further
improvement spatial and seasonal variations of the launch
parameters should be included in GW parameterization
schemes.},
keywords = {J (WoSType)},
cin = {ICG-I},
ddc = {550},
cid = {I:(DE-Juel1)VDB47},
pnm = {Atmosphäre und Klima},
pid = {G:(DE-Juel1)FUEK406},
shelfmark = {Meteorology $\&$ Atmospheric Sciences},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000240838200002},
url = {https://juser.fz-juelich.de/record/53480},
}