气候变化领域集成服务门户(CCPortal): Persistent Multidecadal Variability Since the 15th Century in the Southern Barents Sea Derived From Annually Resolved Shell-Based Records

CCPortal

DOI	10.1029/2020JC017074
	Persistent Multidecadal Variability Since the 15th Century in the Southern Barents Sea Derived From Annually Resolved Shell-Based Records
	Mette M.J.; Wanamaker A.D.; Jr.; Retelle M.J.; Carroll M.L.; Andersson C.; Ambrose W.G.; Jr.
发表日期	2021
ISSN	21699275
卷号	126 期号:6
英文摘要	In the North Atlantic Ocean, multidecadal variability in sea surface temperatures (SSTs) over the past several centuries has largely been inferred through terrestrial proxies and decadally resolved marine proxies. Annually resolved proxy records from marine archives provide valuable insight into this variability, but are especially rare from high latitude environments, particularly for centennial timescales. We constructed continuous, absolutely dated records of shell growth (1449–2014 CE; 564 years) and oxygen isotope ratios (δ18Oshell; 1539–2014 CE; 476 years) from shells of the bivalve Arctica islandica from coastal northern Norway, a location sensitive to large-scale North Atlantic Ocean dynamics. An annual (January–December) SST reconstruction derived from δ18Oshell for the past five centuries suggests an increase of at least 2°C from the mid-18th century to 2014. The SST reconstruction correlates significantly with instrumental records and with other proxy reconstructions in the southern Barents Sea region. Spectral analysis of the shell growth and isotope records supports evidence for Atlantic multidecadal variability (65–80 year periodicity) extending into polar and subpolar latitudes for the past five centuries. These results provide additional evidence that multidecadal variability in SSTs are a persistent feature of the North Atlantic marine system. © 2021. American Geophysical Union. All Rights Reserved. This article has been contributed to by US Government employees and their work is in the public domain in the USA.
英文关键词	Arctica islandica; Atlantic multidecadal variability; Little Ice Age; North Atlantic Ocean; Norway; oxygen isotopes; sclerochronology; spectral frequency analysis
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186283
作者单位	U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL, United States; Department of Geological and Atmospheric Sciences, Iowa State University, Ames, IA, United States; NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway; Department of Geology, Bates College, Lewiston, ME, United States; University Centre in Svalbard, Longyearbyen, Norway; Akvaplan-niva, FRAM–High North Research Centre for Climate and the Environment, Tromsø, Norway; School of the Coastal Environment, Coastal Carolina University, Conway, SC, United States
推荐引用方式 GB/T 7714	Mette M.J.,Wanamaker A.D.,Jr.,et al. Persistent Multidecadal Variability Since the 15th Century in the Southern Barents Sea Derived From Annually Resolved Shell-Based Records[J],2021,126(6).
APA	Mette M.J..,Wanamaker A.D..,Jr..,Retelle M.J..,Carroll M.L..,...&Jr..(2021).Persistent Multidecadal Variability Since the 15th Century in the Southern Barents Sea Derived From Annually Resolved Shell-Based Records.Journal of Geophysical Research: Oceans,126(6).
MLA	Mette M.J.,et al."Persistent Multidecadal Variability Since the 15th Century in the Southern Barents Sea Derived From Annually Resolved Shell-Based Records".Journal of Geophysical Research: Oceans 126.6(2021).