 |
| Titel |
How consistent are precipitation patterns predicted by GCMs in the absence of cloud radiative effects? |
| VerfasserIn |
Dagmar Popke, Sandrine Bony, Thorsten Mauritsen, Bjorn Stevens |
| Konferenz |
EGU General Assembly 2015
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250105973
|
| Publikation (Nr.) |
 EGU/EGU2015-5573.pdf |
|
|
|
|
|
| Zusammenfassung |
| Model simulations with state-of-the-art general circulation models reveal a strong
disagreement concerning the simulated regional precipitation patterns and their changes with
warming. The deviating precipitation response even persists when reducing the model
experiment complexity to aquaplanet simulation with forced sea surface temperatures
(Stevens and Bony, 2013).
To assess feedbacks between clouds and radiation on precipitation responses we analyze data
from 5 models performing the aquaplanet simulations of the Clouds On Off Klima
Intercomparison Experiment (COOKIE), where the interaction of clouds and radiation
is inhibited. Although cloud radiative effects are then disabled, the precipitation
patterns among models are as diverse as with cloud radiative effects switched on.
Disentangling differing model responses in such simplified experiments thus appears to be
key to better understanding the simulated regional precipitation in more standard
configurations. By analyzing the local moisture and moist static energy budgets in the
COOKIE experiments we investigate likely causes for the disagreement among
models.
References
Stevens, B. & S. Bony: What Are Climate Models Missing?, Science, 2013, 340,
1053-1054 |
|
|
|
|
|
|