Comparing storm resolving models and climates via unsupervised machine learning.

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State: Public
Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_781CFB944FB8
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Comparing storm resolving models and climates via unsupervised machine learning.
Journal
Scientific reports
Author(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
Publication state
Published
Issued date
15/12/2023
Peer-reviewed
Oui
Volume
13
Number
1
Pages
22365
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
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
Yes
Create date
10/01/2024 17:48
Last modification date
16/07/2024 14:58
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