气候变化领域集成服务门户(CCPortal): Observed Ocean Bottom Temperature Variability at Four Sites in the Northwestern Argentine Basin: Evidence of Decadal Deep/Abyssal Warming Amidst Hourly to Interannual Variability During 2009

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DOI	10.1029/2020GL089093
	Observed Ocean Bottom Temperature Variability at Four Sites in the Northwestern Argentine Basin: Evidence of Decadal Deep/Abyssal Warming Amidst Hourly to Interannual Variability During 2009–2019
	Meinen C.S.; Perez R.C.; Dong S.; Piola A.R.; Campos E.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:18
英文摘要	Consecutive multiyear records of hourly ocean bottom temperature measurements are merged to produce new decade-long time series at four depths ranging from 1,360 to 4,757 m within the northwest Argentine Basin at 34.5°S. Energetic temperature variations are found at a wide range of time scales. All sites exhibit fairly linear warming trends of approximately 0.02–0.04°C per decade over the period 2009–2019, although the trends are only statistically different from zero at the two deepest sites at depths of ~4,500–4,800 m. Near-bottom temperatures from independent conductivity-temperature-depth profiles collected at these same locations every 6–24 months over the same decade show roughly consistent trends. Based on the distribution of spectral energies at the deepest sites and a Monte Carlo-style analysis, sampling at least once per year is necessary to capture the significant warming trends over this decade to within 50% error bars at a 95% confidence limit. ©2020. 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	Temperature measurement; Argentine basins; Bottom temperature; Conductivity temperature depths; Confidence limit; Interannual variability; Long time series; Near-bottom temperature; Temperature variation; Temperature; abyssal zone; annual variation; decadal variation; global warming; historical record; long-term change; seafloor; temperature profile; water temperature; Argentine Basin; Atlantic Ocean
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/169737
作者单位	NOAA Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, United States; Servicio de Hidrografía Naval, Buenos Aires, Argentina; Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto Franco-Argentino sobre Estudios de Clima y sus Impactos, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina; Oceanographic Institute, University of São Paulo, São Paulo, Brazil; Department of Biology, Chemistry and Environmental Sciences, School of Arts and Sciences, American University of Sharjah, Sharjah, United Arab Emirates
推荐引用方式 GB/T 7714	Meinen C.S.,Perez R.C.,Dong S.,等. Observed Ocean Bottom Temperature Variability at Four Sites in the Northwestern Argentine Basin: Evidence of Decadal Deep/Abyssal Warming Amidst Hourly to Interannual Variability During 2009–2019[J],2020,47(18).
APA	Meinen C.S.,Perez R.C.,Dong S.,Piola A.R.,&Campos E..(2020).Observed Ocean Bottom Temperature Variability at Four Sites in the Northwestern Argentine Basin: Evidence of Decadal Deep/Abyssal Warming Amidst Hourly to Interannual Variability During 2009–2019.Geophysical Research Letters,47(18).
MLA	Meinen C.S.,et al."Observed Ocean Bottom Temperature Variability at Four Sites in the Northwestern Argentine Basin: Evidence of Decadal Deep/Abyssal Warming Amidst Hourly to Interannual Variability During 2009–2019".Geophysical Research Letters 47.18(2020).