气候变化领域集成服务门户(CCPortal): Space-Borne Estimation of Volcanic Sulfate Aerosol Lifetime

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DOI	10.1029/2020JD033883
	Space-Borne Estimation of Volcanic Sulfate Aerosol Lifetime
	Li C.; Cohen R.C.
发表日期	2021
ISSN	2169897X
卷号	126 期号:9
英文摘要	Aerosols are an important component of the climate system affecting visibility, clouds, and climate. They are also transported over short and long distances with consequences for continental-scale nutrient availability. Processes that remove aerosols from the atmosphere are difficult to evaluate with observations in isolation from aerosol sources. As a result, a quantitative assessment of uncertainties in our understanding of aerosols is limited and narrowing of those uncertainties is difficult to demonstrate. In this study, we use satellite observations of sulfur dioxide (SO2) and aerosols downwind of the Kīlauea volcano during May–September 2008. We derive the SO2 emission rate, the loss rate of SO2 that is indicative of the production rate of sulfate aerosols, and the subsequent removal rate of the formed sulfate. The result is the first determination of volcanic sulfate aerosol lifetime, 40–64 h, directly from satellite observations. The derived sulfate lifetime is significantly lower than the global average (3–5.5 days) and reflects the rapid wet scavenging of this plume. © 2021. American Geophysical Union. All Rights Reserved.
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185276
作者单位	Department of Chemistry, University of California at Berkeley, Berkeley, CA, United States; Department of Earth and Planetary Science, University of California at Berkeley, Berkeley, CA, United States
推荐引用方式 GB/T 7714	Li C.,Cohen R.C.. Space-Borne Estimation of Volcanic Sulfate Aerosol Lifetime[J],2021,126(9).
APA	Li C.,&Cohen R.C..(2021).Space-Borne Estimation of Volcanic Sulfate Aerosol Lifetime.Journal of Geophysical Research: Atmospheres,126(9).
MLA	Li C.,et al."Space-Borne Estimation of Volcanic Sulfate Aerosol Lifetime".Journal of Geophysical Research: Atmospheres 126.9(2021).