干旱区生态环境知识资源中心(Arid): Ultra-Oligotrophic Waters Expansion in the North Atlantic Subtropical Gyre Revealed by 21 Years of Satellite Observations

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DOI	10.1029/2021GL096965
	Ultra-Oligotrophic Waters Expansion in the North Atlantic Subtropical Gyre Revealed by 21 Years of Satellite Observations
	Leonelli, F. E.; Bellacicco, M.; Pitarch, J.; Organelli, E.; Nardelli, B. Buongiorno; de Toma, V; Cammarota, C.; Marullo, S.; Santoleri, R.
通讯作者	Bellacicco, M
来源期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2022
卷号	49 期号:21
英文摘要	The North Atlantic Subtropical Gyre (NASTG) has experienced the fastest expansion of oligotrophic waters worldwide in response to ocean warming. We study the trophic regime changes in the NASTG by using 21 years (1998-2018) of satellite chlorophyll-a (CHL) data, complemented with other variables such as Sea Surface Temperature, optical backscatter coefficients (b(bp)), Secchi disk (z(SD)), and Mixed Layer Depth. To this aim, we describe the spatial/temporal variability of waters with the lowest CHL concentrations (CHL <= 0.04 mg m(-3)) with an inter-annual variability analysis of key environmental variables. Main results demonstrate that these ultra-oligotrophic waters are spatially expanding and increasing in frequency, shifting the NASTG to a dominant quasi-permanent ultra-oligotrophic condition, thus confirming the ongoing ocean desertification.
英文关键词	North Atlantic Ocean subtropical gyre trophic regime inter-annual variability ocean warming ocean desertification
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000889475400001
WOS关键词	NON-ALGAL PARTICLES ; OPTICAL-SCATTERING ; SEA ; BACKSCATTERING ; VARIABILITY ; TEMPERATURE ; SALINITY
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392954
推荐引用方式 GB/T 7714	Leonelli, F. E.,Bellacicco, M.,Pitarch, J.,et al. Ultra-Oligotrophic Waters Expansion in the North Atlantic Subtropical Gyre Revealed by 21 Years of Satellite Observations[J],2022,49(21).
APA	Leonelli, F. E..,Bellacicco, M..,Pitarch, J..,Organelli, E..,Nardelli, B. Buongiorno.,...&Santoleri, R..(2022).Ultra-Oligotrophic Waters Expansion in the North Atlantic Subtropical Gyre Revealed by 21 Years of Satellite Observations.GEOPHYSICAL RESEARCH LETTERS,49(21).
MLA	Leonelli, F. E.,et al."Ultra-Oligotrophic Waters Expansion in the North Atlantic Subtropical Gyre Revealed by 21 Years of Satellite Observations".GEOPHYSICAL RESEARCH LETTERS 49.21(2022).