 |
| Titel |
Quantitative performance metrics for stratospheric-resolving chemistry-climate models |
| VerfasserIn |
D. W. Waugh, V. Eyring |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1680-7316
|
| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 8, no. 18 ; Nr. 8, no. 18 (2008-09-29), S.5699-5713 |
| Datensatznummer |
250006394
|
| Publikation (Nr.) |
 copernicus.org/acp-8-5699-2008.pdf |
|
|
|
|
|
| Zusammenfassung |
| A set of performance metrics is applied to stratospheric-resolving
chemistry-climate models (CCMs) to quantify their ability to
reproduce key processes relevant for stratospheric ozone. The same
metrics are used to assign a quantitative measure of performance
("grade") to each model-observations comparison shown in
Eyring et al. (2006). A wide range of grades is obtained, both for
different diagnostics applied to a single model and for the same
diagnostic applied to different models, highlighting the wide range
in ability of the CCMs to simulate key processes in the
stratosphere. No model scores high or low on all tests, but
differences in the performance of models can be seen, especially for
processes that are mainly determined by transport where several
models get low grades on multiple tests. The grades are used to
assign relative weights to the CCM projections of 21st century total
ozone. For the diagnostics used here there are generally only small
differences between weighted and unweighted multi-model mean and
variances of total ozone projections. This study raises several issues with the grading and weighting of
CCMs that need further examination. However, it does provide a
framework and benchmarks that will enable quantification of model
improvements and assignment of relative weights to the model
projections. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|