气候变化领域集成服务门户(CCPortal): In situ microphysics observations of intense pyroconvection from a large wildfire

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DOI	10.5194/acp-23-1-2023
	In situ microphysics observations of intense pyroconvection from a large wildfire
	Kingsmill, David E.; French, Jeffrey R.; Lareau, Neil P.
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	1
结束页码	21
卷号	23 期号:1 页码:21
英文摘要	This study characterizes the size and shape distributions of 10 mu m to 6 mm diameter particles observed during six penetrations of wildfire-induced pyroconvection near Boise, Idaho, USA, by a research aircraft over the period 29-30 August 2016. In situ measurements by the aircraft include winds, atmospheric state, and bulk water content and particle concentration, size, and shape. These observations are complemented by data from airborne and ground-based radars. One of the penetrations is through a subsaturated smoke-ash plume with negligible cloud liquid water content that is characterized by an updraft of almost 36 m s(-1). The size distribution of number concentration is very similar to that documented previously for a smoke plume from a prescribed fire, and particle shapes exhibit qualitative and quantitative attributes comparable to ash particles created in a burn chamber. Particles sampled during this penetration are most likely pyrometeors composed of ash. Pyrocumulus clouds are probed in the other penetrations where values of relative humidity and cloud liquid water content are larger, but updrafts are weaker. Compared to the smoke-plume penetration, size distributions are mostly characterized by larger concentration, and particle shapes exhibit a higher degree of circular symmetry. Particle composition in these pyrocumulus penetrations is most likely a combination of hydrometeors (ice particles) and pyrometeors (ash).
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000906729500001
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/273877
作者单位	University of Colorado System; University of Colorado Boulder; University of Wyoming; Nevada System of Higher Education (NSHE); University of Nevada Reno
推荐引用方式 GB/T 7714	Kingsmill, David E.,French, Jeffrey R.,Lareau, Neil P.. In situ microphysics observations of intense pyroconvection from a large wildfire[J],2023,23(1):21.
APA	Kingsmill, David E.,French, Jeffrey R.,&Lareau, Neil P..(2023).In situ microphysics observations of intense pyroconvection from a large wildfire.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(1),21.
MLA	Kingsmill, David E.,et al."In situ microphysics observations of intense pyroconvection from a large wildfire".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.1(2023):21.