气候变化领域集成服务门户(CCPortal): Atmospheric fluxes of soluble nutrients and Fe: More than three years of wet and dry deposition measurements at Gran Canaria (Canary Islands)

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DOI	10.1016/j.atmosenv.2020.118090
	Atmospheric fluxes of soluble nutrients and Fe: More than three years of wet and dry deposition measurements at Gran Canaria (Canary Islands)
	López-García P.; Gelado-Caballero M.D.; Patey M.D.; Hernández-Brito J.J.
发表日期	2021
ISSN	1352-2310
卷号	246
英文摘要	Dust inputs to the oligotrophic waters of the subtropical North Atlantic are of significant importance to the biogeochemistry of the region. In this work, we present fluxes of particles, soluble elements (H+, major ions, Fe and organic ions) in dry deposition (DD) and wet deposition (WD) samples collected between September 2012 and April 2016. Positive Matrix Factorization Model (PMF) indicated four dominant factors influencing the elemental concentrations: marine, crustal and two anthropogenic. Soluble Fe fluxes appear to be affected predominantly by aerosol particle type, with higher values observed at lower dust loading. Although WD fluxes made up only a small fraction of total particle fluxes (12%), they represented an important input of soluble Fe and other nutrients such as nitrate (more than 50% of total amount deposited). This significant contribution to total deposition fluxes may have important consequences for primary production in the surface ocean. Mineral dust is the primary source of soluble atmospheric P to the north Atlantic, which is a region that is already P stressed. Our data show that DD dominates the total flux of soluble P to this area (∼87% of the total flux) and it may have a bigger impact in the diazotroph communities during the summer months when the water column is more stratified and nutrient inputs from deeper water are restricted. © 2020 Elsevier Ltd
英文关键词	Deposition; Dust; Factorization; Iron; Aerosol particles; Atmospheric fluxes; Deposition fluxes; Elemental concentrations; Nutrient inputs; Oligotrophic waters; Positive matrix factorization models; Primary production; Nutrients; aerosol; anthropogenic effect; biogeochemistry; concentration (composition); dry deposition; dust; fractionation; iron; phosphorus; sampling; solubility; wet deposition; Atlantic Ocean; Atlantic Ocean (North); Canary Islands; Gran Canaria; Las Palmas; Spain; Serinus canaria
语种	英语
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169064
作者单位	Chemistry Department, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, 35017, Spain; Ocean Technology and Engineering, National Oceanography Centre, Southampton, SO14 3ZH, United Kingdom; Oceanic Platform of the Canary Islands (PLOCAN), Carretera de Taliarte, Telde, 35214, Spain
推荐引用方式 GB/T 7714	López-García P.,Gelado-Caballero M.D.,Patey M.D.,et al. Atmospheric fluxes of soluble nutrients and Fe: More than three years of wet and dry deposition measurements at Gran Canaria (Canary Islands)[J],2021,246.
APA	López-García P.,Gelado-Caballero M.D.,Patey M.D.,&Hernández-Brito J.J..(2021).Atmospheric fluxes of soluble nutrients and Fe: More than three years of wet and dry deposition measurements at Gran Canaria (Canary Islands).Atmospheric Environment,246.
MLA	López-García P.,et al."Atmospheric fluxes of soluble nutrients and Fe: More than three years of wet and dry deposition measurements at Gran Canaria (Canary Islands)".Atmospheric Environment 246(2021).