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@INPROCEEDINGS{Gong:908363,
author = {Gong, Bing and Langguth, Michael and Ji, Yan and Mozaffari,
Amirpasha and Mache, Karim and Schultz, Martin},
title = {{S}tatistical {D}ownscaling of {S}urface {T}emperature and
{P}recipitation with {D}eep {N}eural {N}etworks},
reportid = {FZJ-2022-02565},
year = {2022},
abstract = {In light of the success of superresolution (SR)
applications in computer vision, recent studies have started
to develop statistical downscaling methods for
meteorological data based on deep neural networks (DNNs).
DNNs are attractive, because they are computationally cheap,
once they are trained.In this study, deep neural networks
are developed to downscale hourly 2 meter temperature and
precipitation over the complex terrain of Central Europe.
Our approach is based on advanced generative adversarial
networks (GANs) and transformer networks. The merit of this
choice is that GANs encourage the generator to preserve the
strong spatial variability from the data, while the
transformer can capture the temporal dependencies. The
experiments are designed to generate high-resolution
temperature (0.1°) from low resolution (0.8°), and
time-evolving high-resolution precipitation (1 km) from low
resolution (4 km/8 km). The DNNs are fed with several
relevant static and dynamic predictors and comprehensively
evaluated by grid point-level errors, and error metrics for
spatial variability and the generated probability
distribution. Our results motivate the further development
of DNNs that can be potentially leveraged to downscale other
challenging Earth system data such as cloud cover or wind in
operational workflows.},
month = {Jun},
date = {2022-06-27},
organization = {Platform for Advanced Scientific
Computing Conference 2022, Basel
(Switzerland), 27 Jun 2022 - 30 Jun
2022},
subtyp = {Other},
cin = {JSC},
cid = {I:(DE-Juel1)JSC-20090406},
pnm = {5111 - Domain-Specific Simulation $\&$ Data Life Cycle Labs
(SDLs) and Research Groups (POF4-511) / MAELSTROM - MAchinE
Learning for Scalable meTeoROlogy and cliMate (955513) /
Earth System Data Exploration (ESDE) / Earth System Data
Exploration (ESDE)},
pid = {G:(DE-HGF)POF4-5111 / G:(EU-Grant)955513 /
G:(DE-Juel-1)ESDE / G:(DE-Juel-1)ESDE},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/908363},
}