气候变化领域集成服务门户(CCPortal): Quantifying a Novel Climate Through Changes in PDO-Climate and PDO-Salmon Relationships

CCPortal

DOI	10.1029/2020GL087972
	Quantifying a Novel Climate Through Changes in PDO-Climate and PDO-Salmon Relationships
	Litzow M.A.; Malick M.J.; Bond N.A.; Cunningham C.J.; Gosselin J.L.; Ward E.J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:16
英文摘要	We used changing relationships between primary climate variables and the Pacific Decadal Oscillation (PDO) index to quantify novel climate conditions during rapid warming of the Gulf of Alaska in 2014–2019. Using Bayesian regression, we show that the PDO had a weaker relationship with North Pacific sea-level pressure than in previous decades and was associated with warmer regional temperatures, reduced wind mixing, and weaker alongshore transport. Climate conditions mapping onto the PDO during 2014–2019 appear to be unique in the historical record. The potential for surprising ecological responses to novel climates is highlighted by a switch to unique, negative correlations between the PDO and salmon production, contrasting with positive or neutral correlations during previous decades. Novel climates are emerging globally, and tracking changing associations between primary variables and climate indices may be a useful approach for quantifying both the degree of climate novelty and the potential for surprising ecological responses. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Ecology; Sea level; Bayesian regression; Climate condition; Climate variables; Ecological response; Historical records; Negative correlation; Pacific decadal oscillation; Sea level pressure; Climate change; climate conditions; climate variation; global warming; historical record; Pacific Decadal Oscillation; sea level pressure; tracking; wind field; Gulf of Alaska; Pacific Ocean; Pacific Ocean (North)
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/169883
作者单位	College of Fisheries and Ocean Sciences, University of Alaska Fairbanks, Kodiak, AK, United States; Northwest Fisheries Science Center, NOAA, National Marine Fisheries Service, Seattle, WA, United States; Joint Institute for the Study of the Atmosphere and Ocean, University of Washington, Seattle, WA, United States; College of Fisheries and Ocean Sciences, University of Alaska Fairbanks, Juneau, AK, United States; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, United States
推荐引用方式 GB/T 7714	Litzow M.A.,Malick M.J.,Bond N.A.,et al. Quantifying a Novel Climate Through Changes in PDO-Climate and PDO-Salmon Relationships[J],2020,47(16).
APA	Litzow M.A.,Malick M.J.,Bond N.A.,Cunningham C.J.,Gosselin J.L.,&Ward E.J..(2020).Quantifying a Novel Climate Through Changes in PDO-Climate and PDO-Salmon Relationships.Geophysical Research Letters,47(16).
MLA	Litzow M.A.,et al."Quantifying a Novel Climate Through Changes in PDO-Climate and PDO-Salmon Relationships".Geophysical Research Letters 47.16(2020).