新论文介绍:Mid-Holocene Asian summer climate and its responses to cold ocean surface simulated in the PMIP2 OAGCMs experiments

[发布日期: 2014-12-30 浏览量 1119]

 In this study, we investigated changes in Last Glacial Maximum (LGM) sea surface temperature simulated by the Paleoclimate Modelling Intercomparison Project (PMIP) muitlmodels and reconstructed by the Multiproxy Approach for the Reconstruction of the Glacial Ocean Surface (MARGO) project, focusing on the model-data comparison. The results showed that the PMIP models produced greater ocean cooling in the North Pacific and Tropical Ocean than that in the MARGO, particularly in the Northwestern Pacific, where the model-data mismatch was larger. All the models failed to capture the anomalous east-west SST gradient in the North Atlantic. In addition, large discrepancies among the models could be observed in the mid-latitude ocean, particularly for the models in the second phase of the PMIP. Although they gave some better agreement with the MARGO, the latest models in the third phase of the PMIP could not show substantial progresses in simulating the LGM ocean surface condition. That is, the improvements in the modeling community were still needed to describe the SST in order to better understand climate during the LGM.