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dc.contributor.authorJiang, Dabangeng
dc.contributor.authorWang, Huijuneng
dc.contributor.authorDing, Zhonglieng
dc.contributor.authorLang, Xianmeieng
dc.contributor.authorDrange, Helgeeng
dc.date.accessioned2005-09-22T08:25:17Z
dc.date.available2005-09-22T08:25:17Z
dc.date.issued2005-07-27eng
dc.identifier.citationJournal of Geophysical Research Atmospheres 2005 110(D14107)en
dc.identifier.issn0148-0227eng
dc.identifier.urihttp://hdl.handle.net/1956/803
dc.description.abstractA new climate simulation for the middle Pliocene (ca. 3 Ma BP) is performed by a global grid-point atmospheric general circulation model developed at the Institute of Atmospheric Physics (IAP AGCM) with boundary conditions provided by the U. S. Geological Survey's Pliocene Research, Interpretations, and Synoptic Mapping (PRISM) group. It follows that warmer and slightly wetter conditions dominated at the middle Pliocene with a globally annual mean surface temperature increase of 2.60°C, and an increase in precipitation of 4.0% relative to today. At the middle Pliocene, globally annual terrestrial warming was 1.86°C, with stronger warming toward high latitudes. Annual precipitation enhanced notably at high latitudes, with the augment reaching 33.5% (32.5%) of the present value at 60–90°N (60–90°S). On the contrary, drier conditions were registered over most parts at 0–30°N, especially in much of East Asia and the northern tropical Pacific. In addition, both boreal summer and winter monsoon significantly decreased in East Asia at the middle Pliocene. It is indicated that the IAP AGCM simulation is generally consistent with the results from other atmospheric models and agrees well with available paleoclimatic reconstructions in East Asia. Additionally, it is further revealed that the PRISM warmer sea surface temperature and reduced sea ice extent are main factors determining the middle Pliocene climate. The simulated climatic responses arising from the PRISM reconstructed vegetation and continental ice sheet cannot be neglected on a regional scale at mid to high latitudes (like over Greenland and the Qinghai-Tibetan Plateau, and around the circum-Antarctic) but have little influence on global climate.en
dc.format.extent1140384 byteseng
dc.format.mimetypeapplication/pdfeng
dc.language.isoengeng
dc.publisherAmerican Geophysical Unioneng
dc.subjectAtmospheric processeseng
dc.subjectPaleoclimatologyeng
dc.titleModeling the middle Pliocene climate with a global atmospheric general circulation modeleng
dc.typeJournal articleeng
dc.typePeer reviewedeng
bora.peerreviewedPeer reviewedeng
bibo.doihttp://dx.doi.org/10.1029/2004JD005639eng
dc.identifier.doihttp://dx.doi.org/10.1029/2004JD005639


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