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@ARTICLE{Kruse:1025388,
author = {Kruse, C. G. and Alexander, M. J. and Bramberger, M. and
Chattopadhyay, A. and Hassanzadeh, P. and Green, B. and
Grimsdell, A. and Hoffmann, L.},
title = {{R}ecreating {O}bserved {C}onvection‐{G}enerated
{G}ravity {W}aves {F}rom {W}eather {R}adar {O}bservations
via a {N}eural {N}etwork and a {D}ynamical {A}tmospheric
{M}odel},
journal = {Journal of advances in modeling earth systems},
volume = {16},
number = {4},
issn = {1942-2466},
address = {Fort Collins, Colo.},
publisher = {[Verlag nicht ermittelbar]},
reportid = {FZJ-2024-02851},
pages = {e2023MS003624},
year = {2024},
abstract = {Convection-generated gravity waves (CGWs) transport
momentum and energy, and this momentum is a dominant driver
of global features of Earth's atmosphere's general
circulation (e.g., the quasi-biennial oscillation, the
pole-to-pole mesospheric circulation). As CGWs are not
generally resolved by global weather and climate models,
their effects on the circulation need to be parameterized.
However, quality observations of GWs are spatiotemporally
sparse, limiting understanding and preventing constraints on
parameterizations. Convection-permitting or -resolving
simulations do generate CGWs, but validation is not possible
as these simulations cannot reproduce the CGW-forcing
convection at correct times, locations, and intensities.
Here, realistic convective diabatic heating, learned from
full-physics convection-permitting Weather Research and
Forecasting simulations, is predicted from weather radar
observations using neural networks and a previously
developed look-up table. These heating rates are then used
to force an idealized GW-resolving dynamical model.
Simulated CGWs forced in this way closely resembled those
observed by the Atmospheric InfraRed Sounder in the upper
stratosphere. CGW drag in these validated simulations
extends 100s of kilometers away from the convective sources,
highlighting errors in current gravity wave drag
parameterizations due to the use of the ubiquitous
single-column approximation. Such validatable simulations
have significant potential to be used to further basic
understanding of CGWs, improve their parameterizations
physically, and provide more restrictive constraints on
tuning with confidence.},
cin = {JSC},
ddc = {550},
cid = {I:(DE-Juel1)JSC-20090406},
pnm = {5111 - Domain-Specific Simulation $\&$ Data Life Cycle Labs
(SDLs) and Research Groups (POF4-511)},
pid = {G:(DE-HGF)POF4-5111},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001202967100001},
doi = {10.1029/2023MS003624},
url = {https://juser.fz-juelich.de/record/1025388},
}