Articles | Volume 16, issue 13
https://doi.org/10.5194/gmd-16-3785-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-16-3785-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Deep learning for stochastic precipitation generation – deep SPG v1.0
Leroy J. Bird
CORRESPONDING AUTHOR
Bodeker Scientific, Alexandra, New Zealand
Matthew G. W. Walker
Bodeker Scientific, Alexandra, New Zealand
Greg E. Bodeker
Bodeker Scientific, Alexandra, New Zealand
Isaac H. Campbell
Bodeker Scientific, Alexandra, New Zealand
Guangzhong Liu
Bodeker Scientific, Alexandra, New Zealand
Swapna Josmi Sam
Bodeker Scientific, Alexandra, New Zealand
Jared Lewis
Climate & Energy College, The University of Melbourne, Parkville, Victoria, Australia
Suzanne M. Rosier
National Institute of Water and Atmospheric Research, Wellington, New Zealand
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Greg E. Bodeker and Stefanie Kremser
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James Keeble, Birgit Hassler, Antara Banerjee, Ramiro Checa-Garcia, Gabriel Chiodo, Sean Davis, Veronika Eyring, Paul T. Griffiths, Olaf Morgenstern, Peer Nowack, Guang Zeng, Jiankai Zhang, Greg Bodeker, Susannah Burrows, Philip Cameron-Smith, David Cugnet, Christopher Danek, Makoto Deushi, Larry W. Horowitz, Anne Kubin, Lijuan Li, Gerrit Lohmann, Martine Michou, Michael J. Mills, Pierre Nabat, Dirk Olivié, Sungsu Park, Øyvind Seland, Jens Stoll, Karl-Hermann Wieners, and Tongwen Wu
Atmos. Chem. Phys., 21, 5015–5061, https://doi.org/10.5194/acp-21-5015-2021, https://doi.org/10.5194/acp-21-5015-2021, 2021
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Stratospheric ozone and water vapour are key components of the Earth system; changes to both have important impacts on global and regional climate. We evaluate changes to these species from 1850 to 2100 in the new generation of CMIP6 models. There is good agreement between the multi-model mean and observations, although there is substantial variation between the individual models. The future evolution of both ozone and water vapour is strongly dependent on the assumed future emissions scenario.
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Short summary
Deriving the statistics of expected future changes in extreme precipitation is challenging due to these events being rare. Regional climate models (RCMs) are computationally prohibitive for generating ensembles capable of capturing large numbers of extreme precipitation events with statistical robustness. Stochastic precipitation generators (SPGs) provide an alternative to RCMs. We describe a novel single-site SPG that learns the statistics of precipitation using a machine-learning approach.
Deriving the statistics of expected future changes in extreme precipitation is challenging due...