Lightning during the COVID-19 pandemic in Brazil

被引：7
作者：
Pinto Neto, Osmar [1 ]
Pinto, Iara R. C. A. [2 ]
Pinto Jr, Osmar [2 ]
机构：
[1] Anhembi Morumbi Univ, Ctr Innovat Technol & Educ CITE, Biomed Engn Dept, BR-12247016 Sao Jose Dos Campos, Brazil
[2] Brazilian Inst Space Res INPE, Atmospher Elect Grp ELAT, Earth Sci Syst Ctr CCST, BR-12227010 Sao Jose Dos Campos, Brazil
来源：
JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS | 2020年 / 211卷
关键词：
Lightning; COVID-19; Brazil; Air pollution; POLARITY; REGION;
D O I：
10.1016/j.jastp.2020.105463
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
This study is concerned with the effects of a decrease in the air pollution concentration on the lightning characteristics of two large Brazilian cities. The decrease in air pollution happened from March 20, till April 02, 2020, and it was caused by the social distancing effort to contain the COVID-19 spread in the cities. In Sao Paulo, the ratio between cloud-to-ground to intracloud flashes and the average peak current of negative cloud-to-ground flashes significantly decreased; whereas in Belo Horizonte, the ratio between positive and negative cloud-to ground flashes significantly increased with respect to the values in previous years.
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页数：4
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