气候变化领域集成服务门户(CCPortal): Recent (1980 to 2015) Trends and Variability in Daily-to-Interannual Soluble Iron Deposition from Dust; Fire; and Anthropogenic Sources

CCPortal

DOI	10.1029/2020GL089688
	Recent (1980 to 2015) Trends and Variability in Daily-to-Interannual Soluble Iron Deposition from Dust; Fire; and Anthropogenic Sources
	Hamilton D.S.; Scanza R.A.; Rathod S.D.; Bond T.C.; Kok J.F.; Li L.; Matsui H.; Mahowald N.M.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:17
英文摘要	The iron cycle is a key component of the Earth system. Yet how variable the atmospheric flux of soluble (bioaccessible) iron into oceans is, and how this variability is modulated by human activity and a changing climate, is not well known. For the first time, we characterize Satellite Era (1980 to 2015) daily-to-interannual modeled soluble iron emission and deposition variability from both pyrogenic (fires and anthropogenic combustion) and dust sources. Statistically significant emission trends exist: dust iron decreases, fire iron slightly increases, and anthropogenic iron increases. A strong temporal variability in deposition to ocean basins is found, and, for most regions, dust iron dominates the absolute deposition magnitude, fire iron is an important contributor to temporal variability, and anthropogenic iron imposes a significant increasing trend. Quantifying soluble iron daily-to-interannual deposition variability from all major iron sources, not only dust, will advance quantification of changes in marine biogeochemistry in response to the continuing human perturbation to the Earth System. ©2020. The Authors.
英文关键词	Dust; Fires; Anthropogenic sources; Atmospheric fluxes; Changing climate; Earth systems; Emission trends; Human activities; Marine biogeochemistries; Temporal variability; Deposition; air quality; annual variation; anthropogenic source; atmospheric pollution; biogeochemistry; depositional environment; dust; fire; human activity; solubility; temporal variation; trend analysis
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/169851
作者单位	Department of Earth and Atmospheric Science, Cornell University, Ithaca, NY, United States; Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United States; Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States; Department of Mechanical Engineering, Colorado State University, Fort Collins, CO, United States; Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, United States; Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan
推荐引用方式 GB/T 7714	Hamilton D.S.,Scanza R.A.,Rathod S.D.,et al. Recent (1980 to 2015) Trends and Variability in Daily-to-Interannual Soluble Iron Deposition from Dust; Fire; and Anthropogenic Sources[J],2020,47(17).
APA	Hamilton D.S..,Scanza R.A..,Rathod S.D..,Bond T.C..,Kok J.F..,...&Mahowald N.M..(2020).Recent (1980 to 2015) Trends and Variability in Daily-to-Interannual Soluble Iron Deposition from Dust; Fire; and Anthropogenic Sources.Geophysical Research Letters,47(17).
MLA	Hamilton D.S.,et al."Recent (1980 to 2015) Trends and Variability in Daily-to-Interannual Soluble Iron Deposition from Dust; Fire; and Anthropogenic Sources".Geophysical Research Letters 47.17(2020).