气候变化领域集成服务门户(CCPortal): Tropical Rains Controlling Deposition of Saharan Dust Across the North Atlantic Ocean

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DOI	10.1029/2019GL086867
	Tropical Rains Controlling Deposition of Saharan Dust Across the North Atlantic Ocean
	van der Does M.; Brummer G.-J.A.; van Crimpen F.C.J.; Korte L.F.; Mahowald N.M.; Merkel U.; Yu H.; Zuidema P.; Stuut J.-B.W.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:5
英文摘要	Mineral dust plays an important role in the atmospheric radiation budget as well as in the ocean carbon cycle through fertilization and by ballasting of settling organic matter. However, observational records of open-ocean dust deposition are sparse. Here, we present the spatial and temporal evolution of Saharan dust deposition over 2 years from marine sediment traps across the North Atlantic, directly below the core of the Saharan dust plume, with highest dust fluxes observed in summer. We combined the observed deposition fluxes with model simulations and satellite observations and argue that dust deposition in the Atlantic is predominantly controlled by summer rains. The dominant depositional pathway changes from wet deposition in summer to dry deposition in winter. Wet deposition has previously been suggested to increase the release of dust-derived nutrients and their bioavailability, which may be a key contributor to surface-ocean productivity in remote and oligotrophic parts of the oceans. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Atmospheric radiation; Biochemistry; Budget control; Deposition; Oceanography; Rain; Submarine geology; Tropics; Atlantic Ocean; Dust deposition; Mineral dust; Ocean fertilization; Wet deposition; Dust; atmospheric deposition; carbon cycle; dust; marine sediment; mineral dust; open ocean; radiation budget; sediment trap; temporal evolution; wet deposition; Atlantic Ocean; Atlantic Ocean (North)
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/170624
作者单位	NIOZ, Royal Netherlands Institute for Sea Research, Department of Ocean Systems, and Utrecht University, Texel, Netherlands; Now at Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany; Department of Earth Sciences, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, Netherlands; Faculty of Science, University of Amsterdam, Amsterdam, Netherlands; Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, NY, United States; MARUM-Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany; Earth Sciences Division, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, United States
推荐引用方式 GB/T 7714	van der Does M.,Brummer G.-J.A.,van Crimpen F.C.J.,et al. Tropical Rains Controlling Deposition of Saharan Dust Across the North Atlantic Ocean[J],2020,47(5).
APA	van der Does M..,Brummer G.-J.A..,van Crimpen F.C.J..,Korte L.F..,Mahowald N.M..,...&Stuut J.-B.W..(2020).Tropical Rains Controlling Deposition of Saharan Dust Across the North Atlantic Ocean.Geophysical Research Letters,47(5).
MLA	van der Does M.,et al."Tropical Rains Controlling Deposition of Saharan Dust Across the North Atlantic Ocean".Geophysical Research Letters 47.5(2020).