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DOI	10.1029/2020GL088163
	African Lightning and its Relation to Rainfall and Climate Change in a Convection-Permitting Model
	Finney D.L.; Marsham J.H.; Wilkinson J.M.; Field P.R.; Blyth A.M.; Jackson L.S.; Kendon E.J.; Tucker S.O.; Stratton R.A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:23
英文摘要	Global climate models struggle to simulate both the convection and cloud ice fundamental to lightning formation. We use the first convection-permitting, future climate simulations for the lightning hot spot of Africa, at the same time utilizing an ice-based lightning parametrization. Both the model and observations show that lightning over Africa's drier areas, as well as the moist Congo, have more lightning per rainfall than other regions. Contrary to results in the literature, the future projection shows little increase in total lightning (~107 flashes (or 2%) per degree warming). This is a consequence of increased stability reducing the number of lightning days, largely offsetting the increased graupel and updraft velocity driving an increase in lightning per lightning day. The next step is to establish if these results are robust across other models and, if combined with parametrized-convection models, whether ensemble-based information on the possible responses of lightning to climate change can be investigated. © 2020. Crown Copyright.
英文关键词	Climate models; Lightning; Rain; Convection model; Future climate; Future projections; Global climate model; Hot spot; Model and observation; Parametrizations; Total lightning; Climate change; atmospheric convection; atmospheric modeling; climate change; lightning; parameterization; permittivity; rainfall; updraft; Congo
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/169327
作者单位	School of Earth and Environment, University of Leeds, Leeds, United Kingdom; National Centre for Atmospheric Science, University of Leeds, Leeds, United Kingdom; Met Office, Exeter, United Kingdom
推荐引用方式 GB/T 7714	Finney D.L.,Marsham J.H.,Wilkinson J.M.,et al. African Lightning and its Relation to Rainfall and Climate Change in a Convection-Permitting Model[J],2020,47(23).
APA	Finney D.L..,Marsham J.H..,Wilkinson J.M..,Field P.R..,Blyth A.M..,...&Stratton R.A..(2020).African Lightning and its Relation to Rainfall and Climate Change in a Convection-Permitting Model.Geophysical Research Letters,47(23).
MLA	Finney D.L.,et al."African Lightning and its Relation to Rainfall and Climate Change in a Convection-Permitting Model".Geophysical Research Letters 47.23(2020).