Author, as appears in the article.: Peterson, Michael J.; Lang, Timothy J.; Bruning, Eric C.; Albrecht, Rachel; Blakeslee, Richard J.; Lyons, Walter A.; Pedeboy, Stephane; Rison, William; Zhang, Yijun; Brunet, Manola; Cerveny, Randall S.;

Department: Geografia

URV's Author/s: Brunet India, Manuela Catalina

Keywords: Optical transient detector Megaflash</author_keyword> Lightning</author_keyword> Flash duration</author_keyword> Flash distance</author_keyword> Extremes</author_keyword>

Abstract: 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.

Research group: Centre en Canvi Climàtic (C3)

Thematic Areas: Química Interdisciplinar Geosciences, multidisciplinary Geosciences, interdisciplinary Geophysics Geografía Geociências General earth and planetary sciences Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Earth and planetary sciences (miscellaneous) Earth and planetary sciences (all) Ciências biológicas i Ciências ambientais Ciências agrárias i Biodiversidade Astronomia / física

licence for use: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 00948276

Author's mail: manola.brunet@urv.cat

Author identifier: 0000-0002-9386-710X

Record's date: 2023-02-19

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020GL088888

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Geophysical Research Letters. 47 (16):

APA: Peterson, Michael J.; Lang, Timothy J.; Bruning, Eric C.; Albrecht, Rachel; Blakeslee, Richard J.; Lyons, Walter A.; Pedeboy, Stephane; Rison, William (2020). New World Meteorological Organization Certified Megaflash Lightning Extremes for Flash Distance (709 km) and Duration (16.73 s) Recorded From Space. Geophysical Research Letters, 47(16), -. DOI: 10.1029/2020GL088888

Article's DOI: 10.1029/2020GL088888

Entity: Universitat Rovira i Virgili

Journal publication year: 2020

Publication Type: Journal Publications