气候变化领域集成服务门户(CCPortal): The 4.2 ka event in the central Mediterranean: New data from a Corchia speleothem (Apuan Alps; central Italy)

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DOI	10.5194/cp-15-135-2019
	The 4.2 ka event in the central Mediterranean: New data from a Corchia speleothem (Apuan Alps; central Italy)
	Isola I.; Zanchetta G.; Drysdale R.N.; Regattieri E.; Bini M.; Bajo P.; Hellstrom J.C.; Baneschi I.; Lionello P.; Woodhead J.; Greig A.
发表日期	2019
ISSN	18149324
起始页码	135
结束页码	151
卷号	15 期号:1
英文摘要	We present new data on the 4.2 ka event in the central Mediterranean from Corchia Cave (Tuscany, central Italy) stalagmite CC27. The stalagmite was analyzed for stable isotopes (δ 13 C and δ 18 O) and trace elements (Mg, U, P, Y), with all proxies showing a coherent phase of reduced cave recharge between ca. 4.5 and 4.1 ka BP. Based on the current climatological data on cyclogenesis, the reduction in cave recharge is considered to be associated with the weakening of the cyclone center located in the Gulf of Genoa in response to reduced advection of air masses from the Atlantic during winter. These conditions, which closely resemble a positive North Atlantic Oscillation (NAO) type of configuration, are associated with cooler and wetter summers with reduced sea warming, which reduced the western Mediterranean evaporation during autumn-early winter, further reducing precipitation. © Author(s) 2019.
语种	英语
scopus关键词	advection; air mass; cyclogenesis; cyclone; evaporation; North Atlantic Oscillation; recharge; reduction; speleothem; stable isotope; stalagmite; trace element; Atlantic Ocean; Atlantic Ocean (North); Corchia Cave; Gulf of Genoa; Italy; Ligurian Sea; Lucca; Mediterranean Sea; Tuscany; Tuscany
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/146861
作者单位	Istituto Nazionale di Geofisica e Vulcanologia, Pisa, Italy; Dipartimento di Scienze della Terra, University of Pisa, Pisa, Italy; School of Geography, University of Melbourne, Melbourne, Australia; School of Earth Sciences, University of Melbourne, Melbourne, Australia; Istituto di Geoscience e Georisorse-CNR, Pisa, Italy; Dipartimento Scienze e Tecnologie Biologiche e Ambientali, Università Del Salento, Lecce, Italy
推荐引用方式 GB/T 7714	Isola I.,Zanchetta G.,Drysdale R.N.,et al. The 4.2 ka event in the central Mediterranean: New data from a Corchia speleothem (Apuan Alps; central Italy)[J],2019,15(1).
APA	Isola I..,Zanchetta G..,Drysdale R.N..,Regattieri E..,Bini M..,...&Greig A..(2019).The 4.2 ka event in the central Mediterranean: New data from a Corchia speleothem (Apuan Alps; central Italy).Climate of the Past,15(1).
MLA	Isola I.,et al."The 4.2 ka event in the central Mediterranean: New data from a Corchia speleothem (Apuan Alps; central Italy)".Climate of the Past 15.1(2019).