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DOI	10.1016/j.quascirev.2020.106573
	Combination of insolation and ice-sheet forcing drive enhanced humidity in northern subtropical regions during MIS 13
	Oliveira D.; Desprat S.; Yin Q.; Rodrigues T.; Naughton F.; Trigo R.M.; Su Q.; Grimalt J.O.; Alonso-Garcia M.; Voelker A.H.L.; Abrantes F.; Sánchez Goñi M.F.
发表日期	2020
ISSN	0277-3791
卷号	247
英文摘要	Marine Isotope Stage (MIS) 13, ∼533–478 ka, has received particular attention due to the unexpected enhancement of monsoon systems under a cool climate characterized by lower atmospheric CO2 and larger ice volume than many other interglacials. Key questions remain about its regional expression (intensity, climate variability, length), and underlying forcing factors, in particular at the mid-latitudes. Here we examine the SW Iberian vegetation, terrestrial climate and sea surface temperature (SST) variability during MIS 13 by combining pollen and biomarker data from IODP Site U1385 with climate-model experiments. We show, for the first time, that despite strong precessional forcing, MIS 13 stands out for its large forest expansions with a reduced Mediterranean character alternating with muted forest contractions, indicating that this stage is marked by a cool-temperate climate regime with high levels of humidity. Results of our data-model comparison reveal that MIS 13 orbitally driven SW Iberian climate and vegetation changes are modulated by the relatively strong ice-sheet forcing. We find that the Northern Hemisphere ice-sheets prescribed at the MIS 13 climate optimum reinforce the insolation effect by increasing the tree fraction and both winter and summer precipitation. We propose that the interactions between ice-sheets and major atmospheric circulation systems may have resulted in the persistent influence of the mid-latitude cells over the SW Iberian region, which led to intensified moisture availability and reduced seasonality, and, in turn, to a pronounced expansion of the temperate forest. © 2020 Elsevier Ltd
英文关键词	Ice-sheets; Insolation; Interglacial MIS 13; Mediterranean vegetation; Mid-Brunhes event; Model-data comparison
语种	英语
scopus关键词	Atmospheric humidity; Climatology; Digital storage; Expansion; Forestry; Glaciers; Ice; Incident solar radiation; Oceanography; Surface waters; Tropics; Vegetation; Atmospheric circulation; Climate variability; Marine isotope stages; Northern Hemispheres; Sea surface temperature (SST); Subtropical regions; Summer precipitation; Temperate climate; Climate models; ice sheet; interglacial; marine isotope stage; midlatitude environment; monsoon; Northern Hemisphere; pollen; precipitation (climatology); sea surface temperature; seasonality; subtropical region; temperate forest; Iberian Peninsula; Mediterranean Region
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151302
作者单位	CCMAR, Centro de Ciências do Mar, Universidade do Algarve, Campus de Gambelas, Faro, 8005-139, Portugal; Divisão de Geologia e Georecursos Marinhos, Instituto Português do Mar e da Atmosfera (IPMA), Av. Doutor Alfredo Magalhães Ramalho 6, Algés, 1495-165, Portugal; Ecole Pratique des Hautes Etudes (EPHE, PSL University), Pessac, F-33615, France; Université Bordeaux, EPOC, UMR 5805, Pessac, F-33615, France; Georges Lemaître Center for Earth and Climate Research, Earth and Life Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium; Instituto Dom Luiz, Universidade de Lisboa, Lisboa, 1749-016, Portugal; Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council for Scientific Research (CSIC), Barcelona, 08034, Spain; Department of Geology- Paleontology, University of Salamanca, Pza. de los Caídos, Salamanca, 37008, Spain
推荐引用方式 GB/T 7714	Oliveira D.,Desprat S.,Yin Q.,et al. Combination of insolation and ice-sheet forcing drive enhanced humidity in northern subtropical regions during MIS 13[J],2020,247.
APA	Oliveira D..,Desprat S..,Yin Q..,Rodrigues T..,Naughton F..,...&Sánchez Goñi M.F..(2020).Combination of insolation and ice-sheet forcing drive enhanced humidity in northern subtropical regions during MIS 13.Quaternary Science Reviews,247.
MLA	Oliveira D.,et al."Combination of insolation and ice-sheet forcing drive enhanced humidity in northern subtropical regions during MIS 13".Quaternary Science Reviews 247(2020).