气候变化领域集成服务门户(CCPortal): Seasonal variations on the conditions required for the lightning production

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DOI	10.1016/j.atmosres.2020.104981
	Seasonal variations on the conditions required for the lightning production
	Salvador A.; Pineda N.; Montanyà J.; Solà G.
发表日期	2020
ISSN	0169-8095
卷号	243
英文摘要	Given the growing concern on lightning threats outside the main warm-season, the objective of this study is to get further insight on the seasonal variations of the necessary conditions required for the production of lightning. In this regard, the study aims to find a basic indicator of cloud electrification that could be useful as an all-year-round robust predictor to warn about lightning threats. To this end, a large dataset of weather radar data products, total lightning observations and radiosounding isotherm heights have been used. According to previous studies, the radar storm height is tightly correlated with the total lightning flash rate. A fifth order relationship fits from spring to autumn and a third order power law in winter. In spite of the good correlation between the radar storm height and the total lightning flash rate, the vertical development alone may be insufficient as a basic indicator for thunderstorm conditions. Alternatively, two different predictors for the lightning onset have been analysed: 12 dBZ radar reflectivity echoes reaching the −40 °C isotherm height and 35 dBZ reflectivity echoes reaching the −10 °C. Results show that the most suitable all-year-round predictor is the TOP-35 above −10 °C. © 2020 Elsevier B.V.
关键词	Atmospheric electricity Isotherms Large dataset Lightning protection Meteorological radar Reflection Cloud electrification Good correlations Radar reflectivities Radiosounding Seasonal variation Total lightning Warm seasons Weather radar data Storms correlation data set electrification lightning power law reflectivity seasonal variation thunderstorm
语种	英语
来源机构	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132433
推荐引用方式 GB/T 7714	Salvador A.,Pineda N.,Montanyà J.,et al. Seasonal variations on the conditions required for the lightning production[J]. Atmospheric Research,2020,243.
APA	Salvador A.,Pineda N.,Montanyà J.,&Solà G..(2020).Seasonal variations on the conditions required for the lightning production.,243.
MLA	Salvador A.,et al."Seasonal variations on the conditions required for the lightning production".243(2020).