Extreme rainfall, hydric conditions and associated atmospheric circulation in the southern la Plata Basin

Autores
Penalba, Olga Clorinda; Rivera, Juan Antonio; Pántano, Vanesa Cristina; Bettolli, Maria Laura
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The interaction between land surface and atmosphere plays an important role in the climate system. Soil-atmosphere feedback mechanisms are analyzed by calculating the hydric condition (HC) of the soil from the water balance. Spatial coherence between HC and the Standardized Precipitation Index (SPI) as well as the circulation patterns associated with rainfall shortages and excess was evaluated over the southern La Plata Basin, fulfilling one of the objectives of the CLARIS LPB project. Monthly precipitation, and maximum and minimum temperatures registered at 35 stations over the 1961-2008 period were used to calculate the HC and SPI indices while the characteristics of the associated circulation were derived from daily sea level pressure fields from NCEP DOE Reanalysis 2 for a domain covering South America. Our results show that the HC responds better to accumulated precipitation anomalies in relatively short time scales. Dry and wet months were selected based on the SPI, according to several thresholds that define the spatial extension of these events. This analysis depends on the region, indicating the diversity of dry and wet events. Nevertheless, spatial coherence between both indices was found for regional extreme events. The analysis of the circulation showed that specific daily surface circulation types contribute to wet and dry cases and have a predominant occurrence related to the climatology in the development of the extreme hydric events in the region. This research complements previous studies carried out with modeled data and shows the complexity in the propagation of the precipitation anomalies through the soil/land surface.
Fil: Penalba, Olga Clorinda. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rivera, Juan Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Pántano, Vanesa Cristina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Bettolli, Maria Laura. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
ATMOSPHERIC CIRCULATION
DRY MONTHS
HYDRIC CONDITION
LA PLATA BASIN
PRECIPITATION EXTREMES
WEATHER TYPES
WET MONTHS
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:11336/59882
Acceder
id CONICETDig_cf3509be92480d1dc10f0a2f993af5ac
oai_identifier_str oai:ri.conicet.gov.ar:11336/59882
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Extreme rainfall, hydric conditions and associated atmospheric circulation in the southern la Plata BasinPenalba, Olga ClorindaRivera, Juan AntonioPántano, Vanesa CristinaBettolli, Maria LauraATMOSPHERIC CIRCULATIONDRY MONTHSHYDRIC CONDITIONLA PLATA BASINPRECIPITATION EXTREMESWEATHER TYPESWET MONTHShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The interaction between land surface and atmosphere plays an important role in the climate system. Soil-atmosphere feedback mechanisms are analyzed by calculating the hydric condition (HC) of the soil from the water balance. Spatial coherence between HC and the Standardized Precipitation Index (SPI) as well as the circulation patterns associated with rainfall shortages and excess was evaluated over the southern La Plata Basin, fulfilling one of the objectives of the CLARIS LPB project. Monthly precipitation, and maximum and minimum temperatures registered at 35 stations over the 1961-2008 period were used to calculate the HC and SPI indices while the characteristics of the associated circulation were derived from daily sea level pressure fields from NCEP DOE Reanalysis 2 for a domain covering South America. Our results show that the HC responds better to accumulated precipitation anomalies in relatively short time scales. Dry and wet months were selected based on the SPI, according to several thresholds that define the spatial extension of these events. This analysis depends on the region, indicating the diversity of dry and wet events. Nevertheless, spatial coherence between both indices was found for regional extreme events. The analysis of the circulation showed that specific daily surface circulation types contribute to wet and dry cases and have a predominant occurrence related to the climatology in the development of the extreme hydric events in the region. This research complements previous studies carried out with modeled data and shows the complexity in the propagation of the precipitation anomalies through the soil/land surface.Fil: Penalba, Olga Clorinda. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Rivera, Juan Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Pántano, Vanesa Cristina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Bettolli, Maria Laura. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaInter-Research2016-05info: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/11336/59882Penalba, Olga Clorinda; Rivera, Juan Antonio; Pántano, Vanesa Cristina; Bettolli, Maria Laura; Extreme rainfall, hydric conditions and associated atmospheric circulation in the southern la Plata Basin; Inter-Research; Climate Research; 68; 2-3; 5-2016; 215-2290936-577XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3354/cr01353info:eu-repo/semantics/altIdentifier/url/https://www.int-res.com/abstracts/cr/v68/n2-3/p215-229/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:29Zoai:ri.conicet.gov.ar:11336/59882instacron: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:34982025-09-03 10:01:30.152CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Extreme rainfall, hydric conditions and associated atmospheric circulation in the southern la Plata Basin
title Extreme rainfall, hydric conditions and associated atmospheric circulation in the southern la Plata Basin
spellingShingle Extreme rainfall, hydric conditions and associated atmospheric circulation in the southern la Plata Basin
Penalba, Olga Clorinda
ATMOSPHERIC CIRCULATION
DRY MONTHS
HYDRIC CONDITION
LA PLATA BASIN
PRECIPITATION EXTREMES
WEATHER TYPES
WET MONTHS
title_short Extreme rainfall, hydric conditions and associated atmospheric circulation in the southern la Plata Basin
title_full Extreme rainfall, hydric conditions and associated atmospheric circulation in the southern la Plata Basin
title_fullStr Extreme rainfall, hydric conditions and associated atmospheric circulation in the southern la Plata Basin
title_full_unstemmed Extreme rainfall, hydric conditions and associated atmospheric circulation in the southern la Plata Basin
title_sort Extreme rainfall, hydric conditions and associated atmospheric circulation in the southern la Plata Basin
dc.creator.none.fl_str_mv Penalba, Olga Clorinda
Rivera, Juan Antonio
Pántano, Vanesa Cristina
Bettolli, Maria Laura
author Penalba, Olga Clorinda
author_facet Penalba, Olga Clorinda
Rivera, Juan Antonio
Pántano, Vanesa Cristina
Bettolli, Maria Laura
author_role author
author2 Rivera, Juan Antonio
Pántano, Vanesa Cristina
Bettolli, Maria Laura
author2_role author
author
author
dc.subject.none.fl_str_mv ATMOSPHERIC CIRCULATION
DRY MONTHS
HYDRIC CONDITION
LA PLATA BASIN
PRECIPITATION EXTREMES
WEATHER TYPES
WET MONTHS
topic ATMOSPHERIC CIRCULATION
DRY MONTHS
HYDRIC CONDITION
LA PLATA BASIN
PRECIPITATION EXTREMES
WEATHER TYPES
WET MONTHS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The interaction between land surface and atmosphere plays an important role in the climate system. Soil-atmosphere feedback mechanisms are analyzed by calculating the hydric condition (HC) of the soil from the water balance. Spatial coherence between HC and the Standardized Precipitation Index (SPI) as well as the circulation patterns associated with rainfall shortages and excess was evaluated over the southern La Plata Basin, fulfilling one of the objectives of the CLARIS LPB project. Monthly precipitation, and maximum and minimum temperatures registered at 35 stations over the 1961-2008 period were used to calculate the HC and SPI indices while the characteristics of the associated circulation were derived from daily sea level pressure fields from NCEP DOE Reanalysis 2 for a domain covering South America. Our results show that the HC responds better to accumulated precipitation anomalies in relatively short time scales. Dry and wet months were selected based on the SPI, according to several thresholds that define the spatial extension of these events. This analysis depends on the region, indicating the diversity of dry and wet events. Nevertheless, spatial coherence between both indices was found for regional extreme events. The analysis of the circulation showed that specific daily surface circulation types contribute to wet and dry cases and have a predominant occurrence related to the climatology in the development of the extreme hydric events in the region. This research complements previous studies carried out with modeled data and shows the complexity in the propagation of the precipitation anomalies through the soil/land surface.
Fil: Penalba, Olga Clorinda. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rivera, Juan Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Pántano, Vanesa Cristina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Bettolli, Maria Laura. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description The interaction between land surface and atmosphere plays an important role in the climate system. Soil-atmosphere feedback mechanisms are analyzed by calculating the hydric condition (HC) of the soil from the water balance. Spatial coherence between HC and the Standardized Precipitation Index (SPI) as well as the circulation patterns associated with rainfall shortages and excess was evaluated over the southern La Plata Basin, fulfilling one of the objectives of the CLARIS LPB project. Monthly precipitation, and maximum and minimum temperatures registered at 35 stations over the 1961-2008 period were used to calculate the HC and SPI indices while the characteristics of the associated circulation were derived from daily sea level pressure fields from NCEP DOE Reanalysis 2 for a domain covering South America. Our results show that the HC responds better to accumulated precipitation anomalies in relatively short time scales. Dry and wet months were selected based on the SPI, according to several thresholds that define the spatial extension of these events. This analysis depends on the region, indicating the diversity of dry and wet events. Nevertheless, spatial coherence between both indices was found for regional extreme events. The analysis of the circulation showed that specific daily surface circulation types contribute to wet and dry cases and have a predominant occurrence related to the climatology in the development of the extreme hydric events in the region. This research complements previous studies carried out with modeled data and shows the complexity in the propagation of the precipitation anomalies through the soil/land surface.
publishDate 2016
dc.date.none.fl_str_mv 2016-05
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/11336/59882
Penalba, Olga Clorinda; Rivera, Juan Antonio; Pántano, Vanesa Cristina; Bettolli, Maria Laura; Extreme rainfall, hydric conditions and associated atmospheric circulation in the southern la Plata Basin; Inter-Research; Climate Research; 68; 2-3; 5-2016; 215-229
0936-577X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/59882
identifier_str_mv Penalba, Olga Clorinda; Rivera, Juan Antonio; Pántano, Vanesa Cristina; Bettolli, Maria Laura; Extreme rainfall, hydric conditions and associated atmospheric circulation in the southern la Plata Basin; Inter-Research; Climate Research; 68; 2-3; 5-2016; 215-229
0936-577X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3354/cr01353
info:eu-repo/semantics/altIdentifier/url/https://www.int-res.com/abstracts/cr/v68/n2-3/p215-229/
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 Inter-Research
publisher.none.fl_str_mv Inter-Research
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
_version_ 1842269698857631744
score 13.13397

Publicaciones similares