Spatio-Temporal Variability of Hydroclimatology in the Upper Cauca River Basin in Southwestern Colombia: Pre- and Post-Salvajina Dam Perspective

The Cauca River rises in the Colombian Andes and is the main tributary of the Magdalena River, which drains to the Caribbean Sea. The La Balsa station monitors the Upper Cauca basin and is located just downstream of La Salvajina hydroelectric facility. At this station, the discharge time series for...

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Autores principales:	Wilmar L. Cerón, Mary T. Kayano, Camilo Ocampo-Marulanda, Teresita Canchala, Irma Ayes Rivera, Alvaro Avila-Diaz, Rita V. Andreoli, Itamara Parente de Souza
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Cauca river basin La Salvajina climate variability water discharge Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/38d7984a18eb431e8a960b99aec5d063
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id	oai:doaj.org-article:38d7984a18eb431e8a960b99aec5d063
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spelling	oai:doaj.org-article:38d7984a18eb431e8a960b99aec5d0632021-11-25T16:45:53ZSpatio-Temporal Variability of Hydroclimatology in the Upper Cauca River Basin in Southwestern Colombia: Pre- and Post-Salvajina Dam Perspective10.3390/atmos121115272073-4433https://doaj.org/article/38d7984a18eb431e8a960b99aec5d0632021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4433/12/11/1527https://doaj.org/toc/2073-4433The Cauca River rises in the Colombian Andes and is the main tributary of the Magdalena River, which drains to the Caribbean Sea. The La Balsa station monitors the Upper Cauca basin and is located just downstream of La Salvajina hydroelectric facility. At this station, the discharge time series for November–January during 1950–2019 shows a statistically significant downward break, and change of distribution after 1986 has been documented after La Salvajina started operation. We assessed the spatio-temporal variability of hydroclimatology in the upper Cauca River basin during the pre- and post-Salvajina dam periods to better understand this break. Post-Salvajina, low (high) discharge events are linked to negative (positive) precipitation and soil moisture anomalies that are greater in magnitude and extension than those recorded in the pre-Salvajina period in response to the more intense El Niño events (more intense and frequent central La Niña events) after 1986. Therefore, it is necessary to consider possible future rainfall scenarios and non-infrastructure measures (i.e., reforestation, territorial planning, integrated watershed management, etc.) to mitigate floods and droughts impacts. The contribution of this study is to provide evidence for the need for foresight in the design of any structural or non-structural flood measures.Wilmar L. CerónMary T. KayanoCamilo Ocampo-MarulandaTeresita CanchalaIrma Ayes RiveraAlvaro Avila-DiazRita V. AndreoliItamara Parente de SouzaMDPI AGarticleCauca river basinLa Salvajinaclimate variabilitywater dischargeMeteorology. ClimatologyQC851-999ENAtmosphere, Vol 12, Iss 1527, p 1527 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Cauca river basin La Salvajina climate variability water discharge Meteorology. Climatology QC851-999
spellingShingle	Cauca river basin La Salvajina climate variability water discharge Meteorology. Climatology QC851-999 Wilmar L. Cerón Mary T. Kayano Camilo Ocampo-Marulanda Teresita Canchala Irma Ayes Rivera Alvaro Avila-Diaz Rita V. Andreoli Itamara Parente de Souza Spatio-Temporal Variability of Hydroclimatology in the Upper Cauca River Basin in Southwestern Colombia: Pre- and Post-Salvajina Dam Perspective
description	The Cauca River rises in the Colombian Andes and is the main tributary of the Magdalena River, which drains to the Caribbean Sea. The La Balsa station monitors the Upper Cauca basin and is located just downstream of La Salvajina hydroelectric facility. At this station, the discharge time series for November–January during 1950–2019 shows a statistically significant downward break, and change of distribution after 1986 has been documented after La Salvajina started operation. We assessed the spatio-temporal variability of hydroclimatology in the upper Cauca River basin during the pre- and post-Salvajina dam periods to better understand this break. Post-Salvajina, low (high) discharge events are linked to negative (positive) precipitation and soil moisture anomalies that are greater in magnitude and extension than those recorded in the pre-Salvajina period in response to the more intense El Niño events (more intense and frequent central La Niña events) after 1986. Therefore, it is necessary to consider possible future rainfall scenarios and non-infrastructure measures (i.e., reforestation, territorial planning, integrated watershed management, etc.) to mitigate floods and droughts impacts. The contribution of this study is to provide evidence for the need for foresight in the design of any structural or non-structural flood measures.
format	article
author	Wilmar L. Cerón Mary T. Kayano Camilo Ocampo-Marulanda Teresita Canchala Irma Ayes Rivera Alvaro Avila-Diaz Rita V. Andreoli Itamara Parente de Souza
author_facet	Wilmar L. Cerón Mary T. Kayano Camilo Ocampo-Marulanda Teresita Canchala Irma Ayes Rivera Alvaro Avila-Diaz Rita V. Andreoli Itamara Parente de Souza
author_sort	Wilmar L. Cerón
title	Spatio-Temporal Variability of Hydroclimatology in the Upper Cauca River Basin in Southwestern Colombia: Pre- and Post-Salvajina Dam Perspective
title_short	Spatio-Temporal Variability of Hydroclimatology in the Upper Cauca River Basin in Southwestern Colombia: Pre- and Post-Salvajina Dam Perspective
title_full	Spatio-Temporal Variability of Hydroclimatology in the Upper Cauca River Basin in Southwestern Colombia: Pre- and Post-Salvajina Dam Perspective
title_fullStr	Spatio-Temporal Variability of Hydroclimatology in the Upper Cauca River Basin in Southwestern Colombia: Pre- and Post-Salvajina Dam Perspective
title_full_unstemmed	Spatio-Temporal Variability of Hydroclimatology in the Upper Cauca River Basin in Southwestern Colombia: Pre- and Post-Salvajina Dam Perspective
title_sort	spatio-temporal variability of hydroclimatology in the upper cauca river basin in southwestern colombia: pre- and post-salvajina dam perspective
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/38d7984a18eb431e8a960b99aec5d063
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Spatio-Temporal Variability of Hydroclimatology in the Upper Cauca River Basin in Southwestern Colombia: Pre- and Post-Salvajina Dam Perspective

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