气候变化领域集成服务门户(CCPortal): An integrated index of recent pan-Arctic climate change

CCPortal

DOI	10.1088/1748-9326/aaf665
	An integrated index of recent pan-Arctic climate change
	Overland J.E.; Wang M.; Box J.E.
发表日期	2019
ISSN	17489318
卷号	14 期号:3
英文摘要	We investigate climatic changes that have occurred in the Arctic over the period 1982-2017 through examination of ten observational cryospheric time series, and develop a new quantitative composite Arctic climate change index (ACCI). Using Factor Analysis highlights joint trends of winter temperature increases and sea ice loss, tundra shifts, and secondarily summer sea ice loss, spring snow loss, and Greenland land ice loss. An Arctic-wide atmospheric circulation index (Arctic Oscillation) was not selected as a joint contributor. Distinct Arctic change began in 1990 and the trend increases after 2005 to the end of the series. That most variables of the collection project onto a single pattern of change suggests that the Arctic is responding as a coherent system over the previous three decades. However, no single index exclusively tracks change in the Arctic, a conclusion that emerges from a multivariate analysis. A composite quantitative index (ACCI) is useful to document the covariability of systematic Arctic change. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	arctic change; cryosphere; environmental indicators; global warming
语种	英语
scopus关键词	Global warming; Sea ice; arctic change; Arctic climate change; Atmospheric circulation; Cryosphere; Environmental indicators; Multi variate analysis; Quantitative indices; Temperature increase; Multivariant analysis; Arctic Oscillation; atmospheric circulation; climate change; cryosphere; environmental indicator; factor analysis; global warming; index method; multivariate analysis; Arctic; Greenland
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154674
作者单位	NOAA/Pacific Marine Environmental Laboratory, Seattle, WA, United States; University of Washington, Joint Institute for the Study of the Atmosphere and Ocean, Seattle, WA, United States; Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark
推荐引用方式 GB/T 7714	Overland J.E.,Wang M.,Box J.E.. An integrated index of recent pan-Arctic climate change[J],2019,14(3).
APA	Overland J.E.,Wang M.,&Box J.E..(2019).An integrated index of recent pan-Arctic climate change.Environmental Research Letters,14(3).
MLA	Overland J.E.,et al."An integrated index of recent pan-Arctic climate change".Environmental Research Letters 14.3(2019).