 |
| Titel |
Mid-Pliocene global climate simulation with MRI-CGCM2.3: set-up and initial results of PlioMIP Experiments 1 and 2 |
| VerfasserIn |
Y. Kamae, H. Ueda |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1991-959X
|
| Digitales Dokument |
URL |
| Erschienen |
In: Geoscientific Model Development ; 5, no. 3 ; Nr. 5, no. 3 (2012-05-25), S.793-808 |
| Datensatznummer |
250002617
|
| Publikation (Nr.) |
 copernicus.org/gmd-5-793-2012.pdf |
|
|
|
|
|
| Zusammenfassung |
| The mid-Pliocene (3.3 to 3.0 million yr ago), a globally warm period
before the Quaternary, is recently attracting attention as a new target for
paleoclimate modelling and data-model synthesis. This paper reports set-ups
and results of experiments proposed in Pliocene Model Intercomparison
Project (PlioMIP) using a global climate model, MRI-CGCM2.3. We conducted
pre-industrial and mid-Pliocene runs by using the coupled atmosphere-ocean
general circulation model (AOGCM) and its atmospheric component (AGCM) for
the PlioMIP Experiments 2 and 1, respectively. In addition, we conducted two
types of integrations in AOGCM simulation, with and without flux adjustments
on sea surface. General characteristics of differences in the simulated
mid-Pliocene climate relative to the pre-industrial in the three
integrations are compared. In addition, patterns of predicted mid-Pliocene
biomes resulting from the three climate simulations are compared in this
study. Generally, difference of simulated surface climate between AGCM and
AOGCM is larger than that between the two AOGCM runs, with and without flux
adjustments. The simulated climate shows different pattern between AGCM and
AOGCM particularly over low latitude oceans, subtropical land regions and
high latitude oceans. The AOGCM simulations do not reproduce wetter
environment in the subtropics relative to the present-day, which is
suggested by terrestrial proxy data. The differences between the two types
of AOGCM runs are small over the land, but evident over the ocean
particularly in the North Atlantic and polar regions. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|