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New World Meteorological Organization Certified Megaflash Lightning Extremes for Flash Distance (709 km) and Duration (16.73 s) Recorded From Space
Author(s) -
Peterson Michael J.,
Lang Timothy J.,
Bruning Eric C.,
Albrecht Rachel,
Blakeslee Richard J.,
Lyons Walter A.,
Pédeboy Stéphane,
Rison William,
Zhang Yijun,
Brunet Manola,
Cerveny Randall S.
Publication year - 2020
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2020gl088888
Subject(s) - lightning (connector) , meteorology , flash (photography) , geostationary orbit , mesoscale meteorology , environmental science , lightning detection , lightning strike , duration (music) , climatology , remote sensing , geography , geology , satellite , thunderstorm , engineering , aerospace engineering , art , power (physics) , physics , literature , quantum mechanics , visual arts
Identification and validation of atmospheric extremes are essential to monitoring climate change, to addressing engineering and safety concerns, and to promoting technological advancement. An international World Meteorological Organization evaluation committee has critically adjudicated and recommended acceptance of two lightning megaflash events (horizontal mesoscale lightning discharges of >100 km in length) as new global extremes using analysis of Geostationary Lightning Mapper data. The world's greatest extent for an individual lightning flash is a single flash that covered a horizontal distance of 709 ± 8 km (441 ± 5 mi) across parts of southern Brazil on 31 October 2018. The greatest duration for a single lightning flash is 16.730 ± 0.002 s from a flash that developed continuously over northern Argentina on 4 March 2019.