气候变化领域集成服务门户(CCPortal): Extreme Pyroconvective Updrafts During a Megafire

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DOI	10.1029/2020GL089001
	Extreme Pyroconvective Updrafts During a Megafire
	Rodriguez B.; Lareau N.P.; Kingsmill D.E.; Clements C.B.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:18
英文摘要	Airborne cloud radar reveals extreme wildfire updrafts (~60 m s−1) and downdrafts (~30 m s−1) rivaling those in supercell thunderstorms. These extreme vertical velocities occur through a 3-km-deep layer and below the base of a developing pyrocumulonimbus (pyroCb) cloud, which extends to the tropopause at 12 km. In situ aircraft sampling shows updrafts are linked to large temperature and moisture excesses but remain subsaturated at flight level (i.e., below cloud base). Parcel estimates using the in situ data help explain how these “hot-moist” updrafts trigger the overlying pyroCb. The extreme vertical motions observed also pose a previously undocumented aviation hazard. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Earth sciences; Geophysics; Airborne Cloud Radars; Aviation hazards; Flight levels; In-situ data; Moisture excess; Supercell thunderstorms; Vertical motions; Vertical velocity; Air traffic control; airborne survey; convective system; cumulonimbus; extreme event; fire; in situ measurement; radar altimetry; sampling; thunderstorm; tropopause; wildfire
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/169718
作者单位	Department of Meteorology and Climate Science, San José State University, San José, CA, United States; National Weather Service, San Diego, CA, United States; Department of Physics, University of Nevada, Reno, Reno, NV, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States
推荐引用方式 GB/T 7714	Rodriguez B.,Lareau N.P.,Kingsmill D.E.,et al. Extreme Pyroconvective Updrafts During a Megafire[J],2020,47(18).
APA	Rodriguez B.,Lareau N.P.,Kingsmill D.E.,&Clements C.B..(2020).Extreme Pyroconvective Updrafts During a Megafire.Geophysical Research Letters,47(18).
MLA	Rodriguez B.,et al."Extreme Pyroconvective Updrafts During a Megafire".Geophysical Research Letters 47.18(2020).