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| Titel |
A new ensemble-based consistency test for the Community Earth System Model (pyCECT v1.0) |
| VerfasserIn |
A. H. Baker, D. M. Hammerling, M. N. Levy, H. Xu, J. M. Dennis, B. E. Eaton, J. Edwards, C. Hannay, S. A. Mickelson, R. B. Neale, D. Nychka, J. Shollenberger, J. Tribbia, M. Vertenstein, D. Williamson |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1991-959X
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| Digitales Dokument |
URL |
| Erschienen |
In: Geoscientific Model Development ; 8, no. 9 ; Nr. 8, no. 9 (2015-09-09), S.2829-2840 |
| Datensatznummer |
250116555
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| Publikation (Nr.) |
 copernicus.org/gmd-8-2829-2015.pdf |
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| Zusammenfassung |
| Climate simulation codes, such as the Community Earth System Model (CESM),
are especially complex and continually evolving. Their ongoing state of
development requires frequent software verification in the form of quality
assurance to both preserve the quality of the code and instill model
confidence. To formalize and simplify this previously subjective and
computationally expensive aspect of the verification process, we have
developed a new tool for evaluating climate consistency. Because an ensemble
of simulations allows us to gauge the natural variability of the model's
climate, our new tool uses an ensemble approach for consistency testing. In
particular, an ensemble of CESM climate runs is created, from which we obtain
a statistical distribution that can be used to determine whether a new
climate run is statistically distinguishable from the original ensemble. The
CESM ensemble consistency test, referred to as CESM-ECT, is objective in
nature and accessible to CESM developers and users. The tool has proven its
utility in detecting errors in software and hardware environments and
providing rapid feedback to model developers. |
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