Artículo

Abstract:

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.

Registro:

Documento: Artículo
Título:Relationship between ENSO cycles and frost events within the Pampa Humeda region
Autor:Müller, G.V.; Nuñez, M.N.; Seluchi, M.E.
Filiación:Centro de Investigaciones del Mar y la Atmósfera (CONICET-UBA), Ciudad Universitaria, Pabellón II, Buenos Aires, Argentina
Centro de Previsao de Tempo e Estudos Climaticos (CPTEC-INPE), Cachoeira Paulista, Sao Pablo, Brazil
CIMA, Dpto. Cs. de la Atmósfera, Pabellón II 2 Piso-Ciudad Universitaria, 1428, Buenos Aires, Argentina
Palabras clave: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
Año:2000
Volumen:20
Número:13
Página de inicio:1619
Página de fin:1637
DOI: http://dx.doi.org/10.1002/1097-0088(20001115)20:13<1619::AID-JOC552>3.0.CO;2-F
Título revista:International Journal of Climatology
Título revista abreviado:Int. J. Climatol.
ISSN:08998418
CODEN:IJCLE
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_08998418_v20_n13_p1619_Muller.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08998418_v20_n13_p1619_Muller

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Citas:

---------- APA ----------
Müller, G.V., Nuñez, M.N. & Seluchi, M.E. (2000) . Relationship between ENSO cycles and frost events within the Pampa Humeda region. International Journal of Climatology, 20(13), 1619-1637.
http://dx.doi.org/10.1002/1097-0088(20001115)20:13<1619::AID-JOC552>3.0.CO;2-F
---------- CHICAGO ----------
Müller, G.V., Nuñez, M.N., Seluchi, M.E. "Relationship between ENSO cycles and frost events within the Pampa Humeda region" . International Journal of Climatology 20, no. 13 (2000) : 1619-1637.
http://dx.doi.org/10.1002/1097-0088(20001115)20:13<1619::AID-JOC552>3.0.CO;2-F
---------- MLA ----------
Müller, G.V., Nuñez, M.N., Seluchi, M.E. "Relationship between ENSO cycles and frost events within the Pampa Humeda region" . International Journal of Climatology, vol. 20, no. 13, 2000, pp. 1619-1637.
http://dx.doi.org/10.1002/1097-0088(20001115)20:13<1619::AID-JOC552>3.0.CO;2-F
---------- VANCOUVER ----------
Müller, G.V., Nuñez, M.N., Seluchi, M.E. Relationship between ENSO cycles and frost events within the Pampa Humeda region. Int. J. Climatol. 2000;20(13):1619-1637.
http://dx.doi.org/10.1002/1097-0088(20001115)20:13<1619::AID-JOC552>3.0.CO;2-F