Multiscale Interactions of Climate Variability and Rainfall in the Sogamoso River Basin: Implications for the 1998–2000 and 2010–2012 Multiyear La Niña Events
In this research, we explored rainfall variability in the Sogamoso River Basin (SRB), its relationship with multiple scales of variability associated with El Niño–Southern Oscillation (ENSO), and the implications for rainfall prolongation during multiyear La Niña events. First, we examined time-freq...
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ftdoajarticles:oai:doaj.org/article:da8113fa705c4c1d85cffd04f3ade6e1 2023-05-15T17:36:38+02:00 Multiscale Interactions of Climate Variability and Rainfall in the Sogamoso River Basin: Implications for the 1998–2000 and 2010–2012 Multiyear La Niña Events Wilmar L. Cerón Nilton Díaz Daniel Escobar-Carbonari Jeimar Tapasco Rita V. Andreoli Mary T. Kayano Teresita Canchala 2022-11-01T00:00:00Z https://doi.org/10.3390/w14223635 https://doaj.org/article/da8113fa705c4c1d85cffd04f3ade6e1 EN eng MDPI AG https://www.mdpi.com/2073-4441/14/22/3635 https://doaj.org/toc/2073-4441 doi:10.3390/w14223635 2073-4441 https://doaj.org/article/da8113fa705c4c1d85cffd04f3ade6e1 Water, Vol 14, Iss 3635, p 3635 (2022) multiyear La Niña precipitation Sogamoso River Basin Colombia standardized precipitation index Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 article 2022 ftdoajarticles https://doi.org/10.3390/w14223635 2022-12-30T22:36:43Z In this research, we explored rainfall variability in the Sogamoso River Basin (SRB), its relationship with multiple scales of variability associated with El Niño–Southern Oscillation (ENSO), and the implications for rainfall prolongation during multiyear La Niña events. First, we examined time-frequency rainfall variations in the SRB based on the standardized precipitation index (SPI) from 1982 to 2019, using wavelet transform and principal component analysis (PCA). In addition, we applied wavelet analysis to investigate the links at different time scales between ENSO and the main mode of rainfall variability in the SRB. Finally, we explored the role that each scale of variability played in the prolongation and intensity of rainfall in the SRB during the 1998–2000 and 2010–2012 multiyear La Niña events. The results of the wavelet analyses revealed significant ENSO relationships affecting SRB rainfall at three different scales: quasi-biennial (2–3-years) between 1994 and 2002, as well as from 2008 to 2015; interannual (5–7 years) from 1995 to 2011; and quasi-decadal (9–12 years) from 1994 to 2012. This indicates that multiyear events are a consequence of the interaction of several scales of variability rather than a unique scale. During the 1998–2000 event, El Niño conditions were observed during the first half of 1998; subsequently, a cooling of the central and eastern tropical Pacific (western tropical Pacific) on the quasi-biennial (interannual) scale was observed during 1999; in 2000, only La Niña conditions were observed on the interannual scale. Therefore, during this event, the quasi-biennial (interannual) scale promoted wet conditions in the Caribbean, the Andes, and the Colombian Pacific from June–August (JJA) 1998 to JJA 1999 (during 1999–2000). During the 2010–2012 La Niña event, the interbasin sea surface temperature gradient between the tropical Pacific and tropical North Atlantic contributed to strengthening (weakening) of the Choco jet (Caribbean low-level jet) on the quasi-biennial scale during ... Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Pacific Water 14 22 3635 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
multiyear La Niña precipitation Sogamoso River Basin Colombia standardized precipitation index Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
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multiyear La Niña precipitation Sogamoso River Basin Colombia standardized precipitation index Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Wilmar L. Cerón Nilton Díaz Daniel Escobar-Carbonari Jeimar Tapasco Rita V. Andreoli Mary T. Kayano Teresita Canchala Multiscale Interactions of Climate Variability and Rainfall in the Sogamoso River Basin: Implications for the 1998–2000 and 2010–2012 Multiyear La Niña Events |
topic_facet |
multiyear La Niña precipitation Sogamoso River Basin Colombia standardized precipitation index Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
description |
In this research, we explored rainfall variability in the Sogamoso River Basin (SRB), its relationship with multiple scales of variability associated with El Niño–Southern Oscillation (ENSO), and the implications for rainfall prolongation during multiyear La Niña events. First, we examined time-frequency rainfall variations in the SRB based on the standardized precipitation index (SPI) from 1982 to 2019, using wavelet transform and principal component analysis (PCA). In addition, we applied wavelet analysis to investigate the links at different time scales between ENSO and the main mode of rainfall variability in the SRB. Finally, we explored the role that each scale of variability played in the prolongation and intensity of rainfall in the SRB during the 1998–2000 and 2010–2012 multiyear La Niña events. The results of the wavelet analyses revealed significant ENSO relationships affecting SRB rainfall at three different scales: quasi-biennial (2–3-years) between 1994 and 2002, as well as from 2008 to 2015; interannual (5–7 years) from 1995 to 2011; and quasi-decadal (9–12 years) from 1994 to 2012. This indicates that multiyear events are a consequence of the interaction of several scales of variability rather than a unique scale. During the 1998–2000 event, El Niño conditions were observed during the first half of 1998; subsequently, a cooling of the central and eastern tropical Pacific (western tropical Pacific) on the quasi-biennial (interannual) scale was observed during 1999; in 2000, only La Niña conditions were observed on the interannual scale. Therefore, during this event, the quasi-biennial (interannual) scale promoted wet conditions in the Caribbean, the Andes, and the Colombian Pacific from June–August (JJA) 1998 to JJA 1999 (during 1999–2000). During the 2010–2012 La Niña event, the interbasin sea surface temperature gradient between the tropical Pacific and tropical North Atlantic contributed to strengthening (weakening) of the Choco jet (Caribbean low-level jet) on the quasi-biennial scale during ... |
format |
Article in Journal/Newspaper |
author |
Wilmar L. Cerón Nilton Díaz Daniel Escobar-Carbonari Jeimar Tapasco Rita V. Andreoli Mary T. Kayano Teresita Canchala |
author_facet |
Wilmar L. Cerón Nilton Díaz Daniel Escobar-Carbonari Jeimar Tapasco Rita V. Andreoli Mary T. Kayano Teresita Canchala |
author_sort |
Wilmar L. Cerón |
title |
Multiscale Interactions of Climate Variability and Rainfall in the Sogamoso River Basin: Implications for the 1998–2000 and 2010–2012 Multiyear La Niña Events |
title_short |
Multiscale Interactions of Climate Variability and Rainfall in the Sogamoso River Basin: Implications for the 1998–2000 and 2010–2012 Multiyear La Niña Events |
title_full |
Multiscale Interactions of Climate Variability and Rainfall in the Sogamoso River Basin: Implications for the 1998–2000 and 2010–2012 Multiyear La Niña Events |
title_fullStr |
Multiscale Interactions of Climate Variability and Rainfall in the Sogamoso River Basin: Implications for the 1998–2000 and 2010–2012 Multiyear La Niña Events |
title_full_unstemmed |
Multiscale Interactions of Climate Variability and Rainfall in the Sogamoso River Basin: Implications for the 1998–2000 and 2010–2012 Multiyear La Niña Events |
title_sort |
multiscale interactions of climate variability and rainfall in the sogamoso river basin: implications for the 1998–2000 and 2010–2012 multiyear la niña events |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/w14223635 https://doaj.org/article/da8113fa705c4c1d85cffd04f3ade6e1 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Water, Vol 14, Iss 3635, p 3635 (2022) |
op_relation |
https://www.mdpi.com/2073-4441/14/22/3635 https://doaj.org/toc/2073-4441 doi:10.3390/w14223635 2073-4441 https://doaj.org/article/da8113fa705c4c1d85cffd04f3ade6e1 |
op_doi |
https://doi.org/10.3390/w14223635 |
container_title |
Water |
container_volume |
14 |
container_issue |
22 |
container_start_page |
3635 |
_version_ |
1766136186183614464 |