气候变化领域集成服务门户(CCPortal): The HadCM3 contribution to PlioMIP phase 2

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DOI	10.5194/cp-15-1691-2019
	The HadCM3 contribution to PlioMIP phase 2
	Hunter S.J.; Haywood A.M.; Dolan A.M.; Tindall J.C.
发表日期	2019
ISSN	18149324
起始页码	1691
结束页码	1713
卷号	15 期号:5
英文摘要	We present the UK's input into the Pliocene Model Intercomparison Project phase 2 (PlioMIP2) using the Hadley Centre Climate Model version 3 (HadCM3). The 400 ppm CO2 Pliocene experiment has a mean annual surface air temperature that is 2.9?C warmer than the preindustrial and a polar amplification of between 1.7 and 2.2 times the global mean warming. The Pliocene Research Interpretation and Synoptic Mapping (PRISM4) enhanced Pliocene palaeogeography accounts for a warming of 1.4 °C, whilst the CO2 increase from 280 to 400 ppm leads to a further 1.5 °C of warming. Climate sensitivity is 3.5 °C for the pre-industrial and 2.9 °C for the Pliocene. Precipitation change between the pre-industrial and Pliocene is complex, with geographic and land surface changes primarily modifying the geographical extent of mean annual precipitation. Sea ice fraction and areal extent are reduced during the Pliocene, particularly in the Southern Hemisphere, although they persist through summer in both hemispheres. The Pliocene palaeogeography drives a more intense Pacific and Atlantic meridional overturning circulation (AMOC). This intensification of AMOC is coincident with more widespread deep convection in the North Atlantic. We conclude by examining additional sensitivity experiments and confirm that the choice of total solar insolation (1361 vs. 1365 Wm-2) and orbital configuration (modern vs. 3.205 Ma) does not significantly influence the anomaly-type analysis in use by the Pliocene community. © 2019 Author(s).
语种	英语
scopus关键词	air temperature; climate modeling; global warming; land surface; North Atlantic Oscillation; oceanic convection; overturn; Pacific Decadal Oscillation; paleoclimate; paleogeography; Pliocene; precipitation assessment; Atlantic Ocean; Atlantic Ocean (North); Pacific Ocean
来源期刊	Climate of the Past
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146779
作者单位	School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom
推荐引用方式 GB/T 7714	Hunter S.J.,Haywood A.M.,Dolan A.M.,et al. The HadCM3 contribution to PlioMIP phase 2[J],2019,15(5).
APA	Hunter S.J.,Haywood A.M.,Dolan A.M.,&Tindall J.C..(2019).The HadCM3 contribution to PlioMIP phase 2.Climate of the Past,15(5).
MLA	Hunter S.J.,et al."The HadCM3 contribution to PlioMIP phase 2".Climate of the Past 15.5(2019).