Isotope Tracing of the Parana River, Argentina
- Autores
- Panarello, Hector Osvaldo; Dapeña, Cristina
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The Rio de la Plata estuary is the collector of a vast drainage basin of about 3.1x106 km2 . There are many tributaries to the estuary but the Parana and Uruguay rivers directly discharge more than 99% of the average discharge (24 000 m3/s). The stable isotope composition of water in this estuary has been monitored since 1997. From 120 isotopic pairs, it could be established that 18O and 2H exhibit a cyclical pattern with a maximum in November and a minimum in May. Values correspond to the ITCZ position. When it is located near 8oN, the amount of precipitation over the basin decreases and hence the isotopic composition of both elements is more positive. Conversely, when the ITCZ moves southward, the pluviosity increases, leading to more negative δ18O and δ2H values. This isotopic signal is recordered with a delay of ca 4 month in the estuary. The derivate magnitude, deuterium excess, showed important variations, from 1 to δ18 per mille, with the higher values being related to positive ENSO (El Nino) phases and lower values to negative ENSO (La Nina). Despite the interactions with groundwater and physical processes along ca. 2800 km, the Parana River still reflects at its mouth all these climatic phenomena that control the δ2H and δ18O contents at its catchment areas.
Fil: Panarello, Hector Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotopica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geocronología y Geología Isotópica; Argentina
Fil: Dapeña, Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotopica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geocronología y Geología Isotópica; Argentina - Materia
-
Enso Phenomena
Deuterium Excess
Deuterium Oxygen-18
Tritium - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/31710
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Isotope Tracing of the Parana River, ArgentinaPanarello, Hector OsvaldoDapeña, CristinaEnso PhenomenaDeuterium ExcessDeuterium Oxygen-18Tritiumhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The Rio de la Plata estuary is the collector of a vast drainage basin of about 3.1x106 km2 . There are many tributaries to the estuary but the Parana and Uruguay rivers directly discharge more than 99% of the average discharge (24 000 m3/s). The stable isotope composition of water in this estuary has been monitored since 1997. From 120 isotopic pairs, it could be established that 18O and 2H exhibit a cyclical pattern with a maximum in November and a minimum in May. Values correspond to the ITCZ position. When it is located near 8oN, the amount of precipitation over the basin decreases and hence the isotopic composition of both elements is more positive. Conversely, when the ITCZ moves southward, the pluviosity increases, leading to more negative δ18O and δ2H values. This isotopic signal is recordered with a delay of ca 4 month in the estuary. The derivate magnitude, deuterium excess, showed important variations, from 1 to δ18 per mille, with the higher values being related to positive ENSO (El Nino) phases and lower values to negative ENSO (La Nina). Despite the interactions with groundwater and physical processes along ca. 2800 km, the Parana River still reflects at its mouth all these climatic phenomena that control the δ2H and δ18O contents at its catchment areas.Fil: Panarello, Hector Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotopica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geocronología y Geología Isotópica; ArgentinaFil: Dapeña, Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotopica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geocronología y Geología Isotópica; ArgentinaInternational Atomic Energy Agency2012-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/31710Panarello, Hector Osvaldo; Dapeña, Cristina; Isotope Tracing of the Parana River, Argentina; International Atomic Energy Agency; IAEA Tecdoc; 1673; 5-2012; 1-201011-4289CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://inis.iaea.org/search/search.aspx?orig_q=RN:43048664info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:34:56Zoai:ri.conicet.gov.ar:11336/31710instacron: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 09:34:57.254CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Isotope Tracing of the Parana River, Argentina |
title |
Isotope Tracing of the Parana River, Argentina |
spellingShingle |
Isotope Tracing of the Parana River, Argentina Panarello, Hector Osvaldo Enso Phenomena Deuterium Excess Deuterium Oxygen-18 Tritium |
title_short |
Isotope Tracing of the Parana River, Argentina |
title_full |
Isotope Tracing of the Parana River, Argentina |
title_fullStr |
Isotope Tracing of the Parana River, Argentina |
title_full_unstemmed |
Isotope Tracing of the Parana River, Argentina |
title_sort |
Isotope Tracing of the Parana River, Argentina |
dc.creator.none.fl_str_mv |
Panarello, Hector Osvaldo Dapeña, Cristina |
author |
Panarello, Hector Osvaldo |
author_facet |
Panarello, Hector Osvaldo Dapeña, Cristina |
author_role |
author |
author2 |
Dapeña, Cristina |
author2_role |
author |
dc.subject.none.fl_str_mv |
Enso Phenomena Deuterium Excess Deuterium Oxygen-18 Tritium |
topic |
Enso Phenomena Deuterium Excess Deuterium Oxygen-18 Tritium |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The Rio de la Plata estuary is the collector of a vast drainage basin of about 3.1x106 km2 . There are many tributaries to the estuary but the Parana and Uruguay rivers directly discharge more than 99% of the average discharge (24 000 m3/s). The stable isotope composition of water in this estuary has been monitored since 1997. From 120 isotopic pairs, it could be established that 18O and 2H exhibit a cyclical pattern with a maximum in November and a minimum in May. Values correspond to the ITCZ position. When it is located near 8oN, the amount of precipitation over the basin decreases and hence the isotopic composition of both elements is more positive. Conversely, when the ITCZ moves southward, the pluviosity increases, leading to more negative δ18O and δ2H values. This isotopic signal is recordered with a delay of ca 4 month in the estuary. The derivate magnitude, deuterium excess, showed important variations, from 1 to δ18 per mille, with the higher values being related to positive ENSO (El Nino) phases and lower values to negative ENSO (La Nina). Despite the interactions with groundwater and physical processes along ca. 2800 km, the Parana River still reflects at its mouth all these climatic phenomena that control the δ2H and δ18O contents at its catchment areas. Fil: Panarello, Hector Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotopica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geocronología y Geología Isotópica; Argentina Fil: Dapeña, Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotopica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geocronología y Geología Isotópica; Argentina |
description |
The Rio de la Plata estuary is the collector of a vast drainage basin of about 3.1x106 km2 . There are many tributaries to the estuary but the Parana and Uruguay rivers directly discharge more than 99% of the average discharge (24 000 m3/s). The stable isotope composition of water in this estuary has been monitored since 1997. From 120 isotopic pairs, it could be established that 18O and 2H exhibit a cyclical pattern with a maximum in November and a minimum in May. Values correspond to the ITCZ position. When it is located near 8oN, the amount of precipitation over the basin decreases and hence the isotopic composition of both elements is more positive. Conversely, when the ITCZ moves southward, the pluviosity increases, leading to more negative δ18O and δ2H values. This isotopic signal is recordered with a delay of ca 4 month in the estuary. The derivate magnitude, deuterium excess, showed important variations, from 1 to δ18 per mille, with the higher values being related to positive ENSO (El Nino) phases and lower values to negative ENSO (La Nina). Despite the interactions with groundwater and physical processes along ca. 2800 km, the Parana River still reflects at its mouth all these climatic phenomena that control the δ2H and δ18O contents at its catchment areas. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-05 |
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/11336/31710 Panarello, Hector Osvaldo; Dapeña, Cristina; Isotope Tracing of the Parana River, Argentina; International Atomic Energy Agency; IAEA Tecdoc; 1673; 5-2012; 1-20 1011-4289 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/31710 |
identifier_str_mv |
Panarello, Hector Osvaldo; Dapeña, Cristina; Isotope Tracing of the Parana River, Argentina; International Atomic Energy Agency; IAEA Tecdoc; 1673; 5-2012; 1-20 1011-4289 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://inis.iaea.org/search/search.aspx?orig_q=RN:43048664 |
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 |
International Atomic Energy Agency |
publisher.none.fl_str_mv |
International Atomic Energy Agency |
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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1844613085123313664 |
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13.070432 |