Seasonal trend analysis of minimum air temperature in La Plata river basin

Autores
Cogliati, Marisa Gloria; Müller, Gabriela V.; Lovino, Miguel Angel
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Regional economies that depend predominantly on agriculture and livestock are heavily affected by changes in air temperature, one such case are the activities in La Plata river basin (LPB). Some studies suggest that variations in the seasonal cycle and season onset would affect efficiency in the use of radiation by vegetation. This paper evaluates the distribution of minimum temperature seasonality trends over LPB, describes the trends in the seasonal cycle, and detects changes of minimum temperature extremes characterized by the number of frost days and the frequency of warm and cold nights. The analysis includes absolute minimum temperature 0(TnMin) and minimum average temperature (TnMean) from ERA5 reanalysis for the 1980–2015 period. Significant positive trends in the amplitude of annual average TnMin and TnMean are observed over more than half the area (53.5% and 69.9% of the basin, respectively). Amplitude and phase parameters suggest that average minimum temperature underwent greater variation than absolute minimum temperature over LPB. The shifts in phase indicate that minimum temperatures occurred earlier than usual in the year considering the 35-year series. In general terms, there is a shift toward warmer conditions. This warming is evident in seasonal trends of minimum temperature as well as in the significant increase in the number of warm nights, a significant decrease of cold days and a significant decrease in the number of frost days in the highest Andes mountains in the west of the LPB.
Fil: Cogliati, Marisa Gloria. Universidad Nacional del Comahue; Argentina
Fil: Müller, Gabriela V.. Universidad Nacional del Litoral. Facultad de Ingenieria y Ciencias Hidricas. Centro de Estudios de Variabilidad y Cambio Climatico.; Argentina
Fil: Lovino, Miguel Angel. Universidad Nacional del Litoral. Facultad de Ingenieria y Ciencias Hidricas. Centro de Estudios de Variabilidad y Cambio Climatico.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
Materia
COLD NIGHTS
ERA5
FROST DAYS
SEASONAL TEMPERATURE TRENDS
SOUTH AMERICA
WARM NIGHTS
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:11336/164788
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/164788
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Seasonal trend analysis of minimum air temperature in La Plata river basinCogliati, Marisa GloriaMüller, Gabriela V.Lovino, Miguel AngelCOLD NIGHTSERA5FROST DAYSSEASONAL TEMPERATURE TRENDSSOUTH AMERICAWARM NIGHTShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Regional economies that depend predominantly on agriculture and livestock are heavily affected by changes in air temperature, one such case are the activities in La Plata river basin (LPB). Some studies suggest that variations in the seasonal cycle and season onset would affect efficiency in the use of radiation by vegetation. This paper evaluates the distribution of minimum temperature seasonality trends over LPB, describes the trends in the seasonal cycle, and detects changes of minimum temperature extremes characterized by the number of frost days and the frequency of warm and cold nights. The analysis includes absolute minimum temperature 0(TnMin) and minimum average temperature (TnMean) from ERA5 reanalysis for the 1980–2015 period. Significant positive trends in the amplitude of annual average TnMin and TnMean are observed over more than half the area (53.5% and 69.9% of the basin, respectively). Amplitude and phase parameters suggest that average minimum temperature underwent greater variation than absolute minimum temperature over LPB. The shifts in phase indicate that minimum temperatures occurred earlier than usual in the year considering the 35-year series. In general terms, there is a shift toward warmer conditions. This warming is evident in seasonal trends of minimum temperature as well as in the significant increase in the number of warm nights, a significant decrease of cold days and a significant decrease in the number of frost days in the highest Andes mountains in the west of the LPB.Fil: Cogliati, Marisa Gloria. Universidad Nacional del Comahue; ArgentinaFil: Müller, Gabriela V.. Universidad Nacional del Litoral. Facultad de Ingenieria y Ciencias Hidricas. Centro de Estudios de Variabilidad y Cambio Climatico.; ArgentinaFil: Lovino, Miguel Angel. Universidad Nacional del Litoral. Facultad de Ingenieria y Ciencias Hidricas. Centro de Estudios de Variabilidad y Cambio Climatico.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; ArgentinaSpringer Wien2021-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/164788Cogliati, Marisa Gloria; Müller, Gabriela V.; Lovino, Miguel Angel; Seasonal trend analysis of minimum air temperature in La Plata river basin; Springer Wien; Theory & Application Climatology; 144; 1-2; 4-2021; 25-370177-798XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s00704-020-03512-winfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:00:20Zoai:ri.conicet.gov.ar:11336/164788instacron: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:34982025-09-29 10:00:20.287CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Seasonal trend analysis of minimum air temperature in La Plata river basin
title Seasonal trend analysis of minimum air temperature in La Plata river basin
spellingShingle Seasonal trend analysis of minimum air temperature in La Plata river basin
Cogliati, Marisa Gloria
COLD NIGHTS
ERA5
FROST DAYS
SEASONAL TEMPERATURE TRENDS
SOUTH AMERICA
WARM NIGHTS
title_short Seasonal trend analysis of minimum air temperature in La Plata river basin
title_full Seasonal trend analysis of minimum air temperature in La Plata river basin
title_fullStr Seasonal trend analysis of minimum air temperature in La Plata river basin
title_full_unstemmed Seasonal trend analysis of minimum air temperature in La Plata river basin
title_sort Seasonal trend analysis of minimum air temperature in La Plata river basin
dc.creator.none.fl_str_mv Cogliati, Marisa Gloria
Müller, Gabriela V.
Lovino, Miguel Angel
author Cogliati, Marisa Gloria
author_facet Cogliati, Marisa Gloria
Müller, Gabriela V.
Lovino, Miguel Angel
author_role author
author2 Müller, Gabriela V.
Lovino, Miguel Angel
author2_role author
author
dc.subject.none.fl_str_mv COLD NIGHTS
ERA5
FROST DAYS
SEASONAL TEMPERATURE TRENDS
SOUTH AMERICA
WARM NIGHTS
topic COLD NIGHTS
ERA5
FROST DAYS
SEASONAL TEMPERATURE TRENDS
SOUTH AMERICA
WARM NIGHTS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Regional economies that depend predominantly on agriculture and livestock are heavily affected by changes in air temperature, one such case are the activities in La Plata river basin (LPB). Some studies suggest that variations in the seasonal cycle and season onset would affect efficiency in the use of radiation by vegetation. This paper evaluates the distribution of minimum temperature seasonality trends over LPB, describes the trends in the seasonal cycle, and detects changes of minimum temperature extremes characterized by the number of frost days and the frequency of warm and cold nights. The analysis includes absolute minimum temperature 0(TnMin) and minimum average temperature (TnMean) from ERA5 reanalysis for the 1980–2015 period. Significant positive trends in the amplitude of annual average TnMin and TnMean are observed over more than half the area (53.5% and 69.9% of the basin, respectively). Amplitude and phase parameters suggest that average minimum temperature underwent greater variation than absolute minimum temperature over LPB. The shifts in phase indicate that minimum temperatures occurred earlier than usual in the year considering the 35-year series. In general terms, there is a shift toward warmer conditions. This warming is evident in seasonal trends of minimum temperature as well as in the significant increase in the number of warm nights, a significant decrease of cold days and a significant decrease in the number of frost days in the highest Andes mountains in the west of the LPB.
Fil: Cogliati, Marisa Gloria. Universidad Nacional del Comahue; Argentina
Fil: Müller, Gabriela V.. Universidad Nacional del Litoral. Facultad de Ingenieria y Ciencias Hidricas. Centro de Estudios de Variabilidad y Cambio Climatico.; Argentina
Fil: Lovino, Miguel Angel. Universidad Nacional del Litoral. Facultad de Ingenieria y Ciencias Hidricas. Centro de Estudios de Variabilidad y Cambio Climatico.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina
description Regional economies that depend predominantly on agriculture and livestock are heavily affected by changes in air temperature, one such case are the activities in La Plata river basin (LPB). Some studies suggest that variations in the seasonal cycle and season onset would affect efficiency in the use of radiation by vegetation. This paper evaluates the distribution of minimum temperature seasonality trends over LPB, describes the trends in the seasonal cycle, and detects changes of minimum temperature extremes characterized by the number of frost days and the frequency of warm and cold nights. The analysis includes absolute minimum temperature 0(TnMin) and minimum average temperature (TnMean) from ERA5 reanalysis for the 1980–2015 period. Significant positive trends in the amplitude of annual average TnMin and TnMean are observed over more than half the area (53.5% and 69.9% of the basin, respectively). Amplitude and phase parameters suggest that average minimum temperature underwent greater variation than absolute minimum temperature over LPB. The shifts in phase indicate that minimum temperatures occurred earlier than usual in the year considering the 35-year series. In general terms, there is a shift toward warmer conditions. This warming is evident in seasonal trends of minimum temperature as well as in the significant increase in the number of warm nights, a significant decrease of cold days and a significant decrease in the number of frost days in the highest Andes mountains in the west of the LPB.
publishDate 2021
dc.date.none.fl_str_mv 2021-04
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/11336/164788
Cogliati, Marisa Gloria; Müller, Gabriela V.; Lovino, Miguel Angel; Seasonal trend analysis of minimum air temperature in La Plata river basin; Springer Wien; Theory & Application Climatology; 144; 1-2; 4-2021; 25-37
0177-798X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/164788
identifier_str_mv Cogliati, Marisa Gloria; Müller, Gabriela V.; Lovino, Miguel Angel; Seasonal trend analysis of minimum air temperature in La Plata river basin; Springer Wien; Theory & Application Climatology; 144; 1-2; 4-2021; 25-37
0177-798X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s00704-020-03512-w
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
dc.publisher.none.fl_str_mv Springer Wien
publisher.none.fl_str_mv Springer Wien
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 13.070432

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