干旱区生态环境知识资源中心(Arid): Bajacalifornian dust deposition and atmospheric input of iron to the Gulf of California during the summer

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DOI	10.1016/j.marchem.2020.103850
	Bajacalifornian dust deposition and atmospheric input of iron to the Gulf of California during the summer
	Munoz-Barbosa, Albino; Delgadillo-Hinojosa, Francisco; Vanessa Torres-Delgado, Eunise; Felix-Bermudez, Armando; Castro, Ruben
通讯作者	Delgadillo-Hinojosa, F
来源期刊	MARINE CHEMISTRY
ISSN	0304-4203
EISSN	1872-7581
出版年	2020
卷号	225
英文摘要	Iron (Fe) is an essential micronutrient for all living organisms and its atmospheric supply to the surface waters of marginal seas remains poorly understood. Here we report the seasonal and spatial variability of atmospheric mineral dust deposition and Fe fluxes along the west coast of the Gulf of California (GC). Meteorological data and dust samples were collected from June 2010 to October 2013 at three sites of the eastern side of Baja California Peninsula (BCP). Evidence of an across-BCP wind component (W-E) during the warm season (May-September) was found, suggesting that winds crossing the BCP from west to east were an important source of variability. Coincidently, dust deposition at the northern and center sites were significantly (p < .05) higher during the warm season, revealing that the BCP could be an important source of dust and Fe to the GC during the warm months. An analysis of the total Fe concentration and Fe/Al ratios also suggest that the BCP and the Mojave Desert are potential sources of the dust arriving to the northern and central region of the GC. Our total averages of dust and Fe fluxes were comparable to those reported for other marginal seas (e.g., Mediterranean, Aqaba) similarly influenced by inputs of mineral dust from the surrounding deserts. A comparison between fluxes show that atmospheric soluble Fe inputs are equivalent to between 6 +/- 4% (cool season) and 71 +/- 40% (warm season) of the dissolved Fe supplied by upwelling. Thereby, during the warm season, when the GC is warmer and strongly stratified, atmospheric deposition represents a significant source of soluble Fe. We estimate that this supply of Fe would be enough to meet the requirements of N-2-fixing primary producers that reside in the oli-gotrophic surface waters of summer.
英文关键词	Baja California peninsula Dust Iron Atmospheric fluxes
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000563903100009
WOS关键词	MINERAL DUST ; PHYTOPLANKTON BLOOM ; NITROGEN-FIXATION ; BAJA-CALIFORNIA ; ATLANTIC-OCEAN ; DRY-DEPOSITION ; PACIFIC-OCEAN ; TRACE-METALS ; TIME-SERIES ; VARIABILITY
WOS类目	Chemistry, Multidisciplinary ; Oceanography
WOS研究方向	Chemistry ; Oceanography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325889
作者单位	[Munoz-Barbosa, Albino; Delgadillo-Hinojosa, Francisco; Vanessa Torres-Delgado, Eunise; Felix-Bermudez, Armando] Univ Autonoma Baja California, Inst Invest Oceanol, Carretera Ensenada Tijuana 3917, Ensenada 22860, Baja California, Mexico; [Castro, Ruben] Univ Autonoma Baja California, Fac Ciencias Marinas, Carretera Ensenada Tijuana 3917, Ensenada 22860, Baja California, Mexico; [Munoz-Barbosa, Albino; Delgadillo-Hinojosa, Francisco; Vanessa Torres-Delgado, Eunise; Felix-Bermudez, Armando; Castro, Ruben] Univ Autonoma Baja California, Posgrad Oceanog Costera Fac Ciencias Marinas, Inst Invest Oceanol, Carretera Ensenada Tijuana 3917, Ensenada 22860, Baja California, Mexico
推荐引用方式 GB/T 7714	Munoz-Barbosa, Albino,Delgadillo-Hinojosa, Francisco,Vanessa Torres-Delgado, Eunise,et al. Bajacalifornian dust deposition and atmospheric input of iron to the Gulf of California during the summer[J],2020,225.
APA	Munoz-Barbosa, Albino,Delgadillo-Hinojosa, Francisco,Vanessa Torres-Delgado, Eunise,Felix-Bermudez, Armando,&Castro, Ruben.(2020).Bajacalifornian dust deposition and atmospheric input of iron to the Gulf of California during the summer.MARINE CHEMISTRY,225.
MLA	Munoz-Barbosa, Albino,et al."Bajacalifornian dust deposition and atmospheric input of iron to the Gulf of California during the summer".MARINE CHEMISTRY 225(2020).