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| Titel |
Pre-industrial and mid-Pliocene simulations with NorESM-L: AGCM simulations |
| VerfasserIn |
Z. Zhang, Q. Yan |
| 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 ; 5, no. 4 ; Nr. 5, no. 4 (2012-08-21), S.1033-1043 |
| Datensatznummer |
250002771
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| Publikation (Nr.) |
 copernicus.org/gmd-5-1033-2012.pdf |
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| Zusammenfassung |
| In the Pliocene Model Intercomparison Project (PlioMIP), two sets of
experiments are suggested. One includes a reference and a mid-Pliocene
experiment run with atmosphere general circulation models (AGCM experiments,
referred to as Experiments I), the other includes a pre-industrial and a
mid-Pliocene experiment run with coupled ocean-atmosphere general
circulation models (AOGCM experiments, referred to as Experiments II). In
this paper, we describe the AGCM experiments with the atmosphere component
in the low-resolution version of the Norwegian Earth System Model
(NorESM-L), and also assess the potential uncertainties in analyzing
mid-Pliocene climate anomalies that might result from the choice of the sea
surface temperature (SST) forcing for the reference experiment
(pre-industrial or modern). We carry out a mid-Pliocene experiment, a
control experiment forced by the modern SST fields, and a pre-industrial
experiment forced by the monthly SST fields from HadISST averaged between
1879 and 1900. Our experiments illustrate that the simulated mid-Pliocene
global mean annual surface air temperature (SAT) is 17.1 °C. It is 2.5 °C warmer than the control experiment, but 2.7 °C warmer than the
pre-industrial experiment. We find that the uncertainties in analyses of
mid-Pliocene climate anomalies are small on a global scale, but still large
on a regional scale. On the regional scale, these uncertainties should be
noted and assessed in future PlioMIP studies. |
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