A novel fire regime driven by increased lightning activity and lightning ignition efficiency for northwestern Patagonia, Argentina

Autores
Kitzberger, Thomas; Burgesser, Rodrigo Exequiel
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
BackgroundNorthwestern Patagonia, Argentina, has in recent decades experienced large lightning-ignited wildfires that suggests ongoing changes into a novel fire regime.AimsThis study investigates spatial and temporal patterns, drivers and trends in lightning and lightning storm incidence and lightning ignition efficiency.MethodsWe spatially/temporally matched 10 years of lightning stroke data, historical fire records and atmospheric reanalysis datasets.Key resultsAndean forests had the highest incidence of dry lightning and highest ignition efficiency. Incidence of large lightning storms was associated with high atmospheric convective activity, related to an enhanced south reaching South American Low-Level Jet. Lightning ignitions were largely controlled by antecedent fire weather represented by threshold values of Fire Weather Index. Positive multidecadal trends in atmospheric instability and frequency of extreme fire weather relate to the observed 18-fold increase in lightning-caused fires, accounting for nearly 50% of the area burned in the last decade.ConclusionsMore frequent lightning-ignited wildfires results from both increased monsoonal influence inducing atmospheric instability and warming-drying trends that impact on fuel conditions.ImplicationsContinued warming, combined with increasing lightning activity, suggest a growing role for lightning-ignited wildfires in shaping regional fire regimes, thus posing new challenges to fire managers and the society.
Fil: Kitzberger, Thomas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Burgesser, Rodrigo Exequiel. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Materia
CLIMATE CHANGE
FIRE WEATHER
IGNITION EFFICCIENCY
LIGHTNING IGNITIONS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/279215
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/279215
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A novel fire regime driven by increased lightning activity and lightning ignition efficiency for northwestern Patagonia, ArgentinaKitzberger, ThomasBurgesser, Rodrigo ExequielCLIMATE CHANGEFIRE WEATHERIGNITION EFFICCIENCYLIGHTNING IGNITIONShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1BackgroundNorthwestern Patagonia, Argentina, has in recent decades experienced large lightning-ignited wildfires that suggests ongoing changes into a novel fire regime.AimsThis study investigates spatial and temporal patterns, drivers and trends in lightning and lightning storm incidence and lightning ignition efficiency.MethodsWe spatially/temporally matched 10 years of lightning stroke data, historical fire records and atmospheric reanalysis datasets.Key resultsAndean forests had the highest incidence of dry lightning and highest ignition efficiency. Incidence of large lightning storms was associated with high atmospheric convective activity, related to an enhanced south reaching South American Low-Level Jet. Lightning ignitions were largely controlled by antecedent fire weather represented by threshold values of Fire Weather Index. Positive multidecadal trends in atmospheric instability and frequency of extreme fire weather relate to the observed 18-fold increase in lightning-caused fires, accounting for nearly 50% of the area burned in the last decade.ConclusionsMore frequent lightning-ignited wildfires results from both increased monsoonal influence inducing atmospheric instability and warming-drying trends that impact on fuel conditions.ImplicationsContinued warming, combined with increasing lightning activity, suggest a growing role for lightning-ignited wildfires in shaping regional fire regimes, thus posing new challenges to fire managers and the society.Fil: Kitzberger, Thomas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Burgesser, Rodrigo Exequiel. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaCsiro Publishing2025-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/279215Kitzberger, Thomas; Burgesser, Rodrigo Exequiel; A novel fire regime driven by increased lightning activity and lightning ignition efficiency for northwestern Patagonia, Argentina; Csiro Publishing; International Journal Of Wildland Fire; 34; 9; 8-2025; 1-391049-8001CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.publish.csiro.au/WF/WF25016info:eu-repo/semantics/altIdentifier/doi/10.1071/WF25016info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-02-06T13:04:44Zoai:ri.conicet.gov.ar:11336/279215instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-02-06 13:04:44.636CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A novel fire regime driven by increased lightning activity and lightning ignition efficiency for northwestern Patagonia, Argentina
title A novel fire regime driven by increased lightning activity and lightning ignition efficiency for northwestern Patagonia, Argentina
spellingShingle A novel fire regime driven by increased lightning activity and lightning ignition efficiency for northwestern Patagonia, Argentina
Kitzberger, Thomas
CLIMATE CHANGE
FIRE WEATHER
IGNITION EFFICCIENCY
LIGHTNING IGNITIONS
title_short A novel fire regime driven by increased lightning activity and lightning ignition efficiency for northwestern Patagonia, Argentina
title_full A novel fire regime driven by increased lightning activity and lightning ignition efficiency for northwestern Patagonia, Argentina
title_fullStr A novel fire regime driven by increased lightning activity and lightning ignition efficiency for northwestern Patagonia, Argentina
title_full_unstemmed A novel fire regime driven by increased lightning activity and lightning ignition efficiency for northwestern Patagonia, Argentina
title_sort A novel fire regime driven by increased lightning activity and lightning ignition efficiency for northwestern Patagonia, Argentina
dc.creator.none.fl_str_mv Kitzberger, Thomas
Burgesser, Rodrigo Exequiel
author Kitzberger, Thomas
author_facet Kitzberger, Thomas
Burgesser, Rodrigo Exequiel
author_role author
author2 Burgesser, Rodrigo Exequiel
author2_role author
dc.subject.none.fl_str_mv CLIMATE CHANGE
FIRE WEATHER
IGNITION EFFICCIENCY
LIGHTNING IGNITIONS
topic CLIMATE CHANGE
FIRE WEATHER
IGNITION EFFICCIENCY
LIGHTNING IGNITIONS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv BackgroundNorthwestern Patagonia, Argentina, has in recent decades experienced large lightning-ignited wildfires that suggests ongoing changes into a novel fire regime.AimsThis study investigates spatial and temporal patterns, drivers and trends in lightning and lightning storm incidence and lightning ignition efficiency.MethodsWe spatially/temporally matched 10 years of lightning stroke data, historical fire records and atmospheric reanalysis datasets.Key resultsAndean forests had the highest incidence of dry lightning and highest ignition efficiency. Incidence of large lightning storms was associated with high atmospheric convective activity, related to an enhanced south reaching South American Low-Level Jet. Lightning ignitions were largely controlled by antecedent fire weather represented by threshold values of Fire Weather Index. Positive multidecadal trends in atmospheric instability and frequency of extreme fire weather relate to the observed 18-fold increase in lightning-caused fires, accounting for nearly 50% of the area burned in the last decade.ConclusionsMore frequent lightning-ignited wildfires results from both increased monsoonal influence inducing atmospheric instability and warming-drying trends that impact on fuel conditions.ImplicationsContinued warming, combined with increasing lightning activity, suggest a growing role for lightning-ignited wildfires in shaping regional fire regimes, thus posing new challenges to fire managers and the society.
Fil: Kitzberger, Thomas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Burgesser, Rodrigo Exequiel. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
description BackgroundNorthwestern Patagonia, Argentina, has in recent decades experienced large lightning-ignited wildfires that suggests ongoing changes into a novel fire regime.AimsThis study investigates spatial and temporal patterns, drivers and trends in lightning and lightning storm incidence and lightning ignition efficiency.MethodsWe spatially/temporally matched 10 years of lightning stroke data, historical fire records and atmospheric reanalysis datasets.Key resultsAndean forests had the highest incidence of dry lightning and highest ignition efficiency. Incidence of large lightning storms was associated with high atmospheric convective activity, related to an enhanced south reaching South American Low-Level Jet. Lightning ignitions were largely controlled by antecedent fire weather represented by threshold values of Fire Weather Index. Positive multidecadal trends in atmospheric instability and frequency of extreme fire weather relate to the observed 18-fold increase in lightning-caused fires, accounting for nearly 50% of the area burned in the last decade.ConclusionsMore frequent lightning-ignited wildfires results from both increased monsoonal influence inducing atmospheric instability and warming-drying trends that impact on fuel conditions.ImplicationsContinued warming, combined with increasing lightning activity, suggest a growing role for lightning-ignited wildfires in shaping regional fire regimes, thus posing new challenges to fire managers and the society.
publishDate 2025
dc.date.none.fl_str_mv 2025-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/279215
Kitzberger, Thomas; Burgesser, Rodrigo Exequiel; A novel fire regime driven by increased lightning activity and lightning ignition efficiency for northwestern Patagonia, Argentina; Csiro Publishing; International Journal Of Wildland Fire; 34; 9; 8-2025; 1-39
1049-8001
CONICET Digital
CONICET
url http://hdl.handle.net/11336/279215
identifier_str_mv Kitzberger, Thomas; Burgesser, Rodrigo Exequiel; A novel fire regime driven by increased lightning activity and lightning ignition efficiency for northwestern Patagonia, Argentina; Csiro Publishing; International Journal Of Wildland Fire; 34; 9; 8-2025; 1-39
1049-8001
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.publish.csiro.au/WF/WF25016
info:eu-repo/semantics/altIdentifier/doi/10.1071/WF25016
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Csiro Publishing
publisher.none.fl_str_mv Csiro Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.106097

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