气候变化领域集成服务门户(CCPortal): Role of Atmospheric Variability in Driving the “Warm-Arctic; Cold-Continent” Pattern Over the North America Sector and Sea Ice Variability Over the Chukchi-Bering Sea

CCPortal

DOI	10.1029/2020GL088599
	Role of Atmospheric Variability in Driving the “Warm-Arctic; Cold-Continent” Pattern Over the North America Sector and Sea Ice Variability Over the Chukchi-Bering Sea
	Guan W.; Jiang X.; Ren X.; Chen G.; Ding Q.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:13
英文摘要	While the observed decline of sea ice over the Chukchi-Bering Sea (CBS) has coincided with the “warm-Arctic, cold-continent” (WACC) pattern over the North America (NA) sector, there is a debate on the causes of the WACC pattern. Here we present a very similar WACC pattern over the NA sector on both interannual and subseasonal time scales. Lead-lag regression analyses on the shorter time scale indicate that an anomalous anticyclonic circulation over Alaska/Yukon in conjunction with the downward surface turbulent heat flux and long-wave radiation anomalies over CBS leads the formation of the WACC pattern by about 1–2 days, while the latter further leads CBS sea ice reduction by about 3 days. These results indicate that atmospheric variability may play an active role in driving both the WACC pattern over NA and CBS sea ice variability. © 2020. The Authors.
英文关键词	Electric circuit breakers; Heat flux; Regression analysis; Anticyclonic circulation; Atmospheric variability; Bering sea; Interannual; Lead-lag; Long-wave radiation; Time-scales; Turbulent heat fluxes; Sea ice; air-sea interaction; annual variation; anticyclone; atmospheric circulation; heat flux; longwave radiation; regression analysis; sea ice; seasonal variation; turbulence; Alaska; Arctic Ocean; Bering Sea; Canada; Chukchi Sea; North America; Pacific Ocean; United States; Yukon Territory
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170193
作者单位	CMA-NJU Joint Laboratory for Climate Prediction Studies, Institute for Climate and Global Change Research, School of Atmospheric Sciences, Nanjing University, Nanjing, China; Joint Institute for Regional Earth System Science and Engineering, University of California, Los Angeles, CA, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, United States; Department of Geography, and Earth Research Institute, University of California, Santa Barbara, CA, United States
推荐引用方式 GB/T 7714	Guan W.,Jiang X.,Ren X.,等. Role of Atmospheric Variability in Driving the “Warm-Arctic; Cold-Continent” Pattern Over the North America Sector and Sea Ice Variability Over the Chukchi-Bering Sea[J],2020,47(13).
APA	Guan W.,Jiang X.,Ren X.,Chen G.,&Ding Q..(2020).Role of Atmospheric Variability in Driving the “Warm-Arctic; Cold-Continent” Pattern Over the North America Sector and Sea Ice Variability Over the Chukchi-Bering Sea.Geophysical Research Letters,47(13).
MLA	Guan W.,et al."Role of Atmospheric Variability in Driving the “Warm-Arctic; Cold-Continent” Pattern Over the North America Sector and Sea Ice Variability Over the Chukchi-Bering Sea".Geophysical Research Letters 47.13(2020).