气候变化领域集成服务门户(CCPortal): Measurement report: Impact of African aerosol particles on cloud evolution in a tropical montane cloud forest in the Caribbean

CCPortal

DOI	10.5194/acp-21-18011-2021
	Measurement report: Impact of African aerosol particles on cloud evolution in a tropical montane cloud forest in the Caribbean
	Torres-Delgado E.; Baumgardner D.; Mayol-Bracero O.L.
发表日期	2021
ISSN	1680-7316
起始页码	18011
结束页码	18027
卷号	21 期号:23
英文摘要	African aerosol particles, traveling thousands of kilometers before reaching the Americas and the Caribbean, directly scatter and absorb solar radiation and indirectly impact climate by serving as cloud condensation nuclei (CCN) or ice-nucleating particles (INPs) that form clouds. These particles can also affect the water budget by altering precipitation patterns that subsequently affect ecosystems. As part of the NSF-funded Luquillo Critical Zone Observatory, field campaigns were conducted during the summers of 2013 (23 d), 2014 (11 d), and 2015 (92 d) at Pico del Este, a site in a tropical montane cloud forest on the Caribbean Island of Puerto Rico. Cloud microphysical properties, which included liquid water content, droplet number concentration, and droplet size, were measured. Using products from models and satellites, as well as in situ measurements of aerosol optical properties, periods of high-and low-dust influence were identified. The results from this study suggest that meteorology and air mass history have a more important effect on cloud processes than aerosols transported from Africa. In contrast, air masses that arrived after passing over the inhabited islands to the southeast led to clouds with much higher droplet concentrations, presumably due to aerosols formed from anthropogenic emissions. © 2021 Elvis Torres-Delgado et al.
语种	英语
scopus关键词	aerosol composition; aerosol formation; air mass; anthropogenic effect; concentration (composition); precipitation assessment
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246377
作者单位	Department of Environmental Science, University of Puerto Rico, San Juan, 00925, Puerto Rico; Droplet Measurement Technologies, Longmont, CO 80503, United States
推荐引用方式 GB/T 7714	Torres-Delgado E.,Baumgardner D.,Mayol-Bracero O.L.. Measurement report: Impact of African aerosol particles on cloud evolution in a tropical montane cloud forest in the Caribbean[J],2021,21(23).
APA	Torres-Delgado E.,Baumgardner D.,&Mayol-Bracero O.L..(2021).Measurement report: Impact of African aerosol particles on cloud evolution in a tropical montane cloud forest in the Caribbean.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(23).
MLA	Torres-Delgado E.,et al."Measurement report: Impact of African aerosol particles on cloud evolution in a tropical montane cloud forest in the Caribbean".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.23(2021).