Relationship between ENSO cycles and frost events within the Pampa Humeda region

Autores
Müller, G.V.; Nuñez, M.N.; Seluchi, M.E.
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The objective of the present paper is to analyse the possible impact of ENSO events on the spatial and the temporal distribution of frost occurrences, within the central region of Argentina. Therefore, the minimum temperature series have been studied for 41 meteorological stations within the Pampa Humeda region and, for a period of 30 years from 1961 to 1990, exploring possible relationships with El Nino (EN)/La Nina (LN) events and the changes in the Southern Oscillation. It can be concluded that part of the frost frequency variability within this region is explained by the ENSO cycle. Results indicate that, for at least 1 of the 2 years in which the EN event takes place, the mean number of frost occurrences drops below the climatological value. The low phase of the Southern Oscillation Index (SOI) also coincides with those years for which the number of frost events remained below the total annual mean in all cases, with the year 1965 as an exception. Conversely, during the high phase of the SOI, this number was above the total annual mean for four of the six classified cases. In the particular case of seasonal frost occurrence, it is related to the warm event development state, exhibiting a greater impact during the autumn and winter months, for which the cold event also seems to have influence. Copyright (C) 2000 Royal Meteorological Society.
Fil:Müller, G.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Nuñez, M.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Seluchi, M.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fuente
Int. J. Climatol. 2000;20(13):1619-1637
Materia
El Nino
El Nino-Southern Oscillation
Frost frequency
La Nina
Pampa Humeda region
Southern Oscillation Index
El Nino
El Nino-Southern Oscillation
frost
La Nina
spatiotemporal analysis
teleconnection
Argentina
Pampa Humeda
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/2.5/ar
Repositorio
Biblioteca Digital (UBA-FCEN)
Institución
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
OAI Identificador
paperaa:paper_08998418_v20_n13_p1619_Muller
Acceder
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oai_identifier_str paperaa:paper_08998418_v20_n13_p1619_Muller
network_acronym_str BDUBAFCEN
repository_id_str 1896
network_name_str Biblioteca Digital (UBA-FCEN)
spelling Relationship between ENSO cycles and frost events within the Pampa Humeda regionMüller, G.V.Nuñez, M.N.Seluchi, M.E.El NinoEl Nino-Southern OscillationFrost frequencyLa NinaPampa Humeda regionSouthern Oscillation IndexEl NinoEl Nino-Southern OscillationfrostLa Ninaspatiotemporal analysisteleconnectionArgentinaPampa HumedaThe objective of the present paper is to analyse the possible impact of ENSO events on the spatial and the temporal distribution of frost occurrences, within the central region of Argentina. Therefore, the minimum temperature series have been studied for 41 meteorological stations within the Pampa Humeda region and, for a period of 30 years from 1961 to 1990, exploring possible relationships with El Nino (EN)/La Nina (LN) events and the changes in the Southern Oscillation. It can be concluded that part of the frost frequency variability within this region is explained by the ENSO cycle. Results indicate that, for at least 1 of the 2 years in which the EN event takes place, the mean number of frost occurrences drops below the climatological value. The low phase of the Southern Oscillation Index (SOI) also coincides with those years for which the number of frost events remained below the total annual mean in all cases, with the year 1965 as an exception. Conversely, during the high phase of the SOI, this number was above the total annual mean for four of the six classified cases. In the particular case of seasonal frost occurrence, it is related to the warm event development state, exhibiting a greater impact during the autumn and winter months, for which the cold event also seems to have influence. Copyright (C) 2000 Royal Meteorological Society.Fil:Müller, G.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Nuñez, M.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Seluchi, M.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.2000info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_08998418_v20_n13_p1619_MullerInt. J. Climatol. 2000;20(13):1619-1637reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2025-09-04T09:48:23Zpaperaa:paper_08998418_v20_n13_p1619_MullerInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-09-04 09:48:25.117Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv Relationship between ENSO cycles and frost events within the Pampa Humeda region
title Relationship between ENSO cycles and frost events within the Pampa Humeda region
spellingShingle Relationship between ENSO cycles and frost events within the Pampa Humeda region
Müller, G.V.
El Nino
El Nino-Southern Oscillation
Frost frequency
La Nina
Pampa Humeda region
Southern Oscillation Index
El Nino
El Nino-Southern Oscillation
frost
La Nina
spatiotemporal analysis
teleconnection
Argentina
Pampa Humeda
title_short Relationship between ENSO cycles and frost events within the Pampa Humeda region
title_full Relationship between ENSO cycles and frost events within the Pampa Humeda region
title_fullStr Relationship between ENSO cycles and frost events within the Pampa Humeda region
title_full_unstemmed Relationship between ENSO cycles and frost events within the Pampa Humeda region
title_sort Relationship between ENSO cycles and frost events within the Pampa Humeda region
dc.creator.none.fl_str_mv Müller, G.V.
Nuñez, M.N.
Seluchi, M.E.
author Müller, G.V.
author_facet Müller, G.V.
Nuñez, M.N.
Seluchi, M.E.
author_role author
author2 Nuñez, M.N.
Seluchi, M.E.
author2_role author
author
dc.subject.none.fl_str_mv El Nino
El Nino-Southern Oscillation
Frost frequency
La Nina
Pampa Humeda region
Southern Oscillation Index
El Nino
El Nino-Southern Oscillation
frost
La Nina
spatiotemporal analysis
teleconnection
Argentina
Pampa Humeda
topic El Nino
El Nino-Southern Oscillation
Frost frequency
La Nina
Pampa Humeda region
Southern Oscillation Index
El Nino
El Nino-Southern Oscillation
frost
La Nina
spatiotemporal analysis
teleconnection
Argentina
Pampa Humeda
dc.description.none.fl_txt_mv The objective of the present paper is to analyse the possible impact of ENSO events on the spatial and the temporal distribution of frost occurrences, within the central region of Argentina. Therefore, the minimum temperature series have been studied for 41 meteorological stations within the Pampa Humeda region and, for a period of 30 years from 1961 to 1990, exploring possible relationships with El Nino (EN)/La Nina (LN) events and the changes in the Southern Oscillation. It can be concluded that part of the frost frequency variability within this region is explained by the ENSO cycle. Results indicate that, for at least 1 of the 2 years in which the EN event takes place, the mean number of frost occurrences drops below the climatological value. The low phase of the Southern Oscillation Index (SOI) also coincides with those years for which the number of frost events remained below the total annual mean in all cases, with the year 1965 as an exception. Conversely, during the high phase of the SOI, this number was above the total annual mean for four of the six classified cases. In the particular case of seasonal frost occurrence, it is related to the warm event development state, exhibiting a greater impact during the autumn and winter months, for which the cold event also seems to have influence. Copyright (C) 2000 Royal Meteorological Society.
Fil:Müller, G.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Nuñez, M.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Seluchi, M.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
description The objective of the present paper is to analyse the possible impact of ENSO events on the spatial and the temporal distribution of frost occurrences, within the central region of Argentina. Therefore, the minimum temperature series have been studied for 41 meteorological stations within the Pampa Humeda region and, for a period of 30 years from 1961 to 1990, exploring possible relationships with El Nino (EN)/La Nina (LN) events and the changes in the Southern Oscillation. It can be concluded that part of the frost frequency variability within this region is explained by the ENSO cycle. Results indicate that, for at least 1 of the 2 years in which the EN event takes place, the mean number of frost occurrences drops below the climatological value. The low phase of the Southern Oscillation Index (SOI) also coincides with those years for which the number of frost events remained below the total annual mean in all cases, with the year 1965 as an exception. Conversely, during the high phase of the SOI, this number was above the total annual mean for four of the six classified cases. In the particular case of seasonal frost occurrence, it is related to the warm event development state, exhibiting a greater impact during the autumn and winter months, for which the cold event also seems to have influence. Copyright (C) 2000 Royal Meteorological Society.
publishDate 2000
dc.date.none.fl_str_mv 2000
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/20.500.12110/paper_08998418_v20_n13_p1619_Muller
url http://hdl.handle.net/20.500.12110/paper_08998418_v20_n13_p1619_Muller
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Int. J. Climatol. 2000;20(13):1619-1637
reponame:Biblioteca Digital (UBA-FCEN)
instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
reponame_str Biblioteca Digital (UBA-FCEN)
collection Biblioteca Digital (UBA-FCEN)
instname_str Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron_str UBA-FCEN
institution UBA-FCEN
repository.name.fl_str_mv Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
repository.mail.fl_str_mv ana@bl.fcen.uba.ar
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score 12.623145

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