气候变化领域集成服务门户(CCPortal): Quantifying Atmospheric Trace Element Deposition Over the Ocean on a Global Scale With Satellite Rainfall Products

CCPortal

DOI	10.1029/2019GL086357
	Quantifying Atmospheric Trace Element Deposition Over the Ocean on a Global Scale With Satellite Rainfall Products
	Kadko D.; Landing W.M.; Buck C.S.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:7
英文摘要	Atmospheric input of trace element micronutrients to the oceans is difficult to determine, as even with collection of high-quality aerosol chemical concentrations, such data by themselves cannot yield deposition rates. To transform these concentrations into rates, a method of determining flux by applying an appropriate deposition velocity is required. A recently developed method based on the natural radionuclide 7Be has provided a means to estimate the bulk (wet + dry) deposition velocity (Vb) required for this calculation. Here, water column 7Be inventories and aerosol 7Be concentrations collected during the 2018 US GEOTRACES Pacific Meridional Transect are presented. We use these data together with those from other ocean basins to derive a global relationship between rain rate (m/yr) and bulk deposition velocity (m/day), such that Vb = 999 ± 96 × Rain rate + 1,040 ± 136 (R2 = 0.81). Thus, with satellite-derived rainfall estimates, a means to calculate aerosol bulk deposition velocities is provided. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Aerosols; Atmospheric chemistry; Beryllium compounds; Deposition rates; Rain; Soil moisture; Velocity; Atmospheric inputs; Atmospheric trace elements; Bulk depositions; Chemical concentrations; Deposition velocities; Natural radionuclides; Rainfall estimates; Satellite rainfalls; Trace elements; aerosol; atmosphere-ocean coupling; concentration (composition); ocean basin; radionuclide; rainfall; trace element
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/170473
作者单位	Applied Research Center, Florida International University, Miami, FL, United States; Department of Earth, Ocean and Atmospheric Science, Florida State University, Tallahassee, FL, United States; Skidaway Institute of Oceanography, University of Georgia, Savannah, GA, United States
推荐引用方式 GB/T 7714	Kadko D.,Landing W.M.,Buck C.S.. Quantifying Atmospheric Trace Element Deposition Over the Ocean on a Global Scale With Satellite Rainfall Products[J],2020,47(7).
APA	Kadko D.,Landing W.M.,&Buck C.S..(2020).Quantifying Atmospheric Trace Element Deposition Over the Ocean on a Global Scale With Satellite Rainfall Products.Geophysical Research Letters,47(7).
MLA	Kadko D.,et al."Quantifying Atmospheric Trace Element Deposition Over the Ocean on a Global Scale With Satellite Rainfall Products".Geophysical Research Letters 47.7(2020).