气候变化领域集成服务门户(CCPortal): Spatial Variability of Antarctic Bottom Water in the Australian Antarctic Basin From 2018

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DOI	10.1029/2020GL089467
	Spatial Variability of Antarctic Bottom Water in the Australian Antarctic Basin From 2018–2020 Captured by Deep Argo
	Thomas G.; Purkey S.G.; Roemmich D.; Foppert A.; Rintoul S.R.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:23
英文摘要	There are two varieties of Antarctic Bottom Water present in the Australian Antarctic Basin (AAB): locally produced Adélie Land Bottom Water (ALBW) and distantly produced Ross Sea Bottom Water (RSBW). Between 2014 and 2018, RSBW has rebounded from a multidecade freshening trend. The return of the salty RSBW to the AAB is revealed by six Deep Argo floats that have occupied the region from January of 2018 to March of 2020. The floats depict a zonal variation in temperature and salinity in the bottom waters of the AAB, driven by the inflow of RSBW. A simple Optimum Multiparameter Analysis based on potential temperature and salinity gives a sense of scale to the composition of the bottom waters, which are nearly 80% of the new, salty RSBW in the south-east corner of the basin by 2019 and generally less than 40% to the west closer to the ALBW outflow region and the abyssal plain. © 2020. The Authors.
英文关键词	Geophysics; Abyssal plains; Antarctic Bottom Water; Australian-antarctic basins; Bottom water; Multiparameter analysis; On potentials; Spatial variability; Zonal variations; Earth sciences; Antarctic Bottom Water; Argo; inflow; outflow; potential temperature; sea surface salinity; seasonality; spatial variation; Australia; Ross Sea; Southern Ocean; Southern 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/169310
作者单位	Scripps Institution of Oceanography, UCSD, San Diego, CA, United States; CSIRO Oceans and Atmosphere, Hobart, TAS, Australia; Centre for Southern Hemisphere Oceans Research, Hobart, TAS, Australia; Australian Antarctic Program Partnership, Hobart, TAS, Australia
推荐引用方式 GB/T 7714	Thomas G.,Purkey S.G.,Roemmich D.,等. Spatial Variability of Antarctic Bottom Water in the Australian Antarctic Basin From 2018–2020 Captured by Deep Argo[J],2020,47(23).
APA	Thomas G.,Purkey S.G.,Roemmich D.,Foppert A.,&Rintoul S.R..(2020).Spatial Variability of Antarctic Bottom Water in the Australian Antarctic Basin From 2018–2020 Captured by Deep Argo.Geophysical Research Letters,47(23).
MLA	Thomas G.,et al."Spatial Variability of Antarctic Bottom Water in the Australian Antarctic Basin From 2018–2020 Captured by Deep Argo".Geophysical Research Letters 47.23(2020).