Streamflow variability of the Neuquén river on the phases of its annual cycle and it relationship with climate indices
The Neuquén river has great relevance for the northern Patagonian region. For this reason, this work aims to study it streamflow variability based on observational data in the context of hydrological emergency in the basin. Firstly, a study of daily streamflow infilling methods was performed, from w...
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Format: | Article in Journal/Newspaper |
Language: | Spanish |
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Centro Argentino de Meteorólogos
2024
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Online Access: | https://revistas.unlp.edu.ar/meteorologica/article/view/16712 |
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ftuninlaplataojs:oai:revistas.unlp.edu.ar:article/16712 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Universidad Nacional de La Plata: Portal del Revistas del UNLP |
op_collection_id |
ftuninlaplataojs |
language |
Spanish |
topic |
Northern Patagonia El Niño Southern Oscillation Southern Annular Mode Indian Ocean Dipole Atlantic Ocean Patagonia norte El niño oscilación del Sur modo anular del sur dipolo del Océano Índico Océano Índico |
spellingShingle |
Northern Patagonia El Niño Southern Oscillation Southern Annular Mode Indian Ocean Dipole Atlantic Ocean Patagonia norte El niño oscilación del Sur modo anular del sur dipolo del Océano Índico Océano Índico Ricetti, Lorenzo Hurtado, Santiago I. Agosta Scarel, Eduardo Cesanelli, Andrés Streamflow variability of the Neuquén river on the phases of its annual cycle and it relationship with climate indices |
topic_facet |
Northern Patagonia El Niño Southern Oscillation Southern Annular Mode Indian Ocean Dipole Atlantic Ocean Patagonia norte El niño oscilación del Sur modo anular del sur dipolo del Océano Índico Océano Índico |
description |
The Neuquén river has great relevance for the northern Patagonian region. For this reason, this work aims to study it streamflow variability based on observational data in the context of hydrological emergency in the basin. Firstly, a study of daily streamflow infilling methods was performed, from which the multiple linear regression stood out as the most appropriate for the basin. Then, the phases of the annual cycle were determined with an objective methodology. The methodology was able to determine the beginning and ending dates in each of the three identified phases, in concordance with the river’s pluvio-nival cycle. Accordingly, there is a minimum streamflow phase, which takes place from the beginning of the year until May, a relative maximum phase which extends from May through mid-September, when the absolute maximum phase begins until the next minimum phase. Subsequently, streamflow series representative of each phase were examined. All the estimated series showed a breakpoint or step change towards lower streamflow between 2007 and 2010, which induces negative and significant trends, yet spurious. Throughout the homogeneous period before the breakpoint, the series of the different phases showed distinct variability. Regarding the potential forcings, the streamflow of the minimum phase showed an inverse relationship with the Southern Annular Mode (SAM) index and a direct association with the TNA index, which represents the sea surface temperature (SST) variability of the tropical North Atlantic Ocean. The streamflow of the relative maximum phase exhibited a direct relationship with El Niño Southern Oscillation (ENSO) indices and an inverse association with the TSA index of the tropical south Atlantic SST. Lastly, the streamflow of the absolute maximum phase showed a direct relationship with the ENSO and Indian Ocean Dipole indices and an inverse connection with the SAM and TNA indices. These results provide useful insights about the changes in the hydrological regime of the river and its variability, ... |
format |
Article in Journal/Newspaper |
author |
Ricetti, Lorenzo Hurtado, Santiago I. Agosta Scarel, Eduardo Cesanelli, Andrés |
author_facet |
Ricetti, Lorenzo Hurtado, Santiago I. Agosta Scarel, Eduardo Cesanelli, Andrés |
author_sort |
Ricetti, Lorenzo |
title |
Streamflow variability of the Neuquén river on the phases of its annual cycle and it relationship with climate indices |
title_short |
Streamflow variability of the Neuquén river on the phases of its annual cycle and it relationship with climate indices |
title_full |
Streamflow variability of the Neuquén river on the phases of its annual cycle and it relationship with climate indices |
title_fullStr |
Streamflow variability of the Neuquén river on the phases of its annual cycle and it relationship with climate indices |
title_full_unstemmed |
Streamflow variability of the Neuquén river on the phases of its annual cycle and it relationship with climate indices |
title_sort |
streamflow variability of the neuquén river on the phases of its annual cycle and it relationship with climate indices |
publisher |
Centro Argentino de Meteorólogos |
publishDate |
2024 |
url |
https://revistas.unlp.edu.ar/meteorologica/article/view/16712 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Meteorologica; Vol. 49 (2024); 026 1850-468X |
op_relation |
https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16082 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16083 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16084 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16085 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16086 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16087 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16088 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16089 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16090 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16091 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16092 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16093 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16094 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16095 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16096 https://revistas.unlp.edu.ar/meteorologica/article/view/16712 |
op_rights |
Derechos de autor 2024 Lorenzo Ricetti, Santiago I. Hurtado, Eduardo Agosta Scarel, Andrés Cesanelli https://creativecommons.org/licenses/by-nc-sa/4.0 |
_version_ |
1799485636066934784 |
spelling |
ftuninlaplataojs:oai:revistas.unlp.edu.ar:article/16712 2024-05-19T07:45:33+00:00 Streamflow variability of the Neuquén river on the phases of its annual cycle and it relationship with climate indices Variabilidad del caudal del río Neuquén en las fases de su ciclo anual y su relación con índices climáticos Ricetti, Lorenzo Hurtado, Santiago I. Agosta Scarel, Eduardo Cesanelli, Andrés 2024-04-25 application/pdf image/jpeg image/png https://revistas.unlp.edu.ar/meteorologica/article/view/16712 spa spa Centro Argentino de Meteorólogos https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16082 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16083 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16084 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16085 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16086 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16087 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16088 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16089 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16090 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16091 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16092 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16093 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16094 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16095 https://revistas.unlp.edu.ar/meteorologica/article/view/16712/16096 https://revistas.unlp.edu.ar/meteorologica/article/view/16712 Derechos de autor 2024 Lorenzo Ricetti, Santiago I. Hurtado, Eduardo Agosta Scarel, Andrés Cesanelli https://creativecommons.org/licenses/by-nc-sa/4.0 Meteorologica; Vol. 49 (2024); 026 1850-468X Northern Patagonia El Niño Southern Oscillation Southern Annular Mode Indian Ocean Dipole Atlantic Ocean Patagonia norte El niño oscilación del Sur modo anular del sur dipolo del Océano Índico Océano Índico info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares 2024 ftuninlaplataojs 2024-04-30T23:49:09Z The Neuquén river has great relevance for the northern Patagonian region. For this reason, this work aims to study it streamflow variability based on observational data in the context of hydrological emergency in the basin. Firstly, a study of daily streamflow infilling methods was performed, from which the multiple linear regression stood out as the most appropriate for the basin. Then, the phases of the annual cycle were determined with an objective methodology. The methodology was able to determine the beginning and ending dates in each of the three identified phases, in concordance with the river’s pluvio-nival cycle. Accordingly, there is a minimum streamflow phase, which takes place from the beginning of the year until May, a relative maximum phase which extends from May through mid-September, when the absolute maximum phase begins until the next minimum phase. Subsequently, streamflow series representative of each phase were examined. All the estimated series showed a breakpoint or step change towards lower streamflow between 2007 and 2010, which induces negative and significant trends, yet spurious. Throughout the homogeneous period before the breakpoint, the series of the different phases showed distinct variability. Regarding the potential forcings, the streamflow of the minimum phase showed an inverse relationship with the Southern Annular Mode (SAM) index and a direct association with the TNA index, which represents the sea surface temperature (SST) variability of the tropical North Atlantic Ocean. The streamflow of the relative maximum phase exhibited a direct relationship with El Niño Southern Oscillation (ENSO) indices and an inverse association with the TSA index of the tropical south Atlantic SST. Lastly, the streamflow of the absolute maximum phase showed a direct relationship with the ENSO and Indian Ocean Dipole indices and an inverse connection with the SAM and TNA indices. These results provide useful insights about the changes in the hydrological regime of the river and its variability, ... Article in Journal/Newspaper North Atlantic Universidad Nacional de La Plata: Portal del Revistas del UNLP |