Comparing storm resolving models and climates via unsupervised machine learning.

Détails

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Accès restreint UNIL
Etat: Public
Version: Final published version
Licence: CC BY 4.0
ID Serval
serval:BIB_781CFB944FB8
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Comparing storm resolving models and climates via unsupervised machine learning.
Périodique
Scientific reports
Auteur⸱e⸱s
Mooers G., Pritchard M., Beucler T., Srivastava P., Mangipudi H., Peng L., Gentine P., Mandt S.
ISSN
2045-2322 (Electronic)
ISSN-L
2045-2322
Statut éditorial
Publié
Date de publication
15/12/2023
Peer-reviewed
Oui
Volume
13
Numéro
1
Pages
22365
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: epublish
Résumé
Global storm-resolving models (GSRMs) have gained widespread interest because of the unprecedented detail with which they resolve the global climate. However, it remains difficult to quantify objective differences in how GSRMs resolve complex atmospheric formations. This lack of comprehensive tools for comparing model similarities is a problem in many disparate fields that involve simulation tools for complex data. To address this challenge we develop methods to estimate distributional distances based on both nonlinear dimensionality reduction and vector quantization. Our approach automatically learns physically meaningful notions of similarity from low-dimensional latent data representations that the different models produce. This enables an intercomparison of nine GSRMs based on their high-dimensional simulation data (2D vertical velocity snapshots) and reveals that only six are similar in their representation of atmospheric dynamics. Furthermore, we uncover signatures of the convective response to global warming in a fully unsupervised way. Our study provides a path toward evaluating future high-resolution simulation data more objectively.
Pubmed
Open Access
Oui
Création de la notice
10/01/2024 17:48
Dernière modification de la notice
16/07/2024 14:58
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