气候变化领域集成服务门户(CCPortal): 2000  years of North Atlantic-Arctic climate

CCPortal

DOI	10.1016/j.quascirev.2019.05.020
	2000  years of North Atlantic-Arctic climate
	Auger J.D.; Mayewski P.A.; Maasch K.A.; Schuenemann K.C.; Carleton A.M.; Birkel S.D.; Saros J.E.
发表日期	2019
ISSN	0277-3791
起始页码	1
结束页码	17
卷号	216
英文摘要	The North Atlantic-Arctic boundary is highly variable due to the transports of heat and moisture through the Gulf Stream and polar jet stream. The North Atlantic storm track generally follows the Gulf Stream and terminates near southeast Greenland and Iceland as the Icelandic Low. The Icelandic Low is the main driver of the North Atlantic Oscillation, particularly during winter months as the baroclinic zone expands to lower latitudes, correlating with temperature and precipitation in many areas around the North Atlantic. Understanding how atmospheric circulation, temperature, and precipitation changes in this region is important to build robust projections of how these variables will change, especially under natural and anthropogenic forcings. Here, climate proxies correlating to the Icelandic Low, summer air temperature, and annual precipitation build an understanding of how these variables changed over the last 2000 years. Through the natural climate shifts of this period — Roman Warm Period, Dark Ages Cold Period, Medieval Climate Anomaly, and Little Ice Age — it is shown that storm frequency decreases as temperature increases and the Icelandic Low increases in pressure (i.e., becomes weaker). However, these climate changes are not simultaneous, and their amplitudes are not similar across the region. Keeping regionality rather than a pan-Arctic average better explains natural variability of each sub-region and how each sub-region has evolved climatically due to anthropogenic forcings of greenhouse gases. © 2019 Elsevier Ltd
英文关键词	Holocene; Ice cores; Lake sedimentology; North Atlantic; Speleothem
语种	英语
scopus关键词	Atmospheric pressure; Climate change; Greenhouse gases; Ocean currents; Storms; Annual precipitation; Atmospheric circulation; Holocenes; Ice core; Medieval climate anomalies; North Atlantic; North Atlantic oscillations; Speleothem; Atmospheric temperature; heat flux; Holocene; ice core; jet stream; lacustrine deposit; Little Ice Age; moisture flux; North Atlantic Oscillation; paleoclimate; speleothem; Arctic; Arctic; Atlantic Ocean; Atlantic Ocean (North); Greenland; Gulf Stream; Iceland
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/151895
作者单位	Climate Change Institute, University of Maine, United States; Department of Earth and Atmospheric Sciences, Metropolitan State University of Denver, United States; Department of Geography, and the Polar Center, Pennsylvania State University, United States
推荐引用方式 GB/T 7714	Auger J.D.,Mayewski P.A.,Maasch K.A.,等. 2000  years of North Atlantic-Arctic climate[J],2019,216.
APA	Auger J.D..,Mayewski P.A..,Maasch K.A..,Schuenemann K.C..,Carleton A.M..,...&Saros J.E..(2019).2000  years of North Atlantic-Arctic climate.Quaternary Science Reviews,216.
MLA	Auger J.D.,et al."2000  years of North Atlantic-Arctic climate".Quaternary Science Reviews 216(2019).