Holocene climatic variations in the Western Cordillera of Colombia: A multiproxy high-resolution record unravels the dual influence of ENSO and ITCZ

Muñoz, Paula; Gorin, Georges E.; Parra, Norberto; Velásquez, César; Lemus, Diego F.; Monsalve-M., Carlos; Jojoa, M.

doi:10.1016/j.quascirev.2016.11.021

Cited by 26 publications

(16 citation statements)

References 101 publications

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“…The regions of the western Pacific presented the highest precipitation rates. The Sierra Nevada de Santa Marta and the eastern mountains also showed an important precipitation rate in the analysis domain: spatially and temporally [5]. The large red spot in the country map for the precipitation variable is located in the region with the biggest hydropower potential, where also coincided with most of the hydropower generation facilities (Figure 1).…”

Section: Occurrences Of Ensomentioning

confidence: 93%

“…The dams required by the hydroelectric power plants are built to contain the water reservoirs based on flooded areas [4], which are mainly located in tropical mountain forests in Colombia [5]. The water reservoirs based on flooded areas in tropical weather have been recently studied for the purpose of estimating their environmental impact based on the Green House Gases (GHG) diffuse emissions to the atmosphere [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Then, the IPCC methodology for diffusing GHG emissions calculation was implemented over the flooded areas in each of the listed hydropower facilities [21,22]. As for last consideration, the dependency analysis of the country energy generation to ENSO was performed using data from the MERRA-2 dataset from NASA for the years of 2014 to 2017 [5,[23][24][25][26]…”

Section: Introductionmentioning

confidence: 99%

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GHG diffuse emissions estimation, and energy security to ENSO using MERRA-2 for largely hydroelectricity-based system

Cuellar

Salomón

Guevara-Luna

et al. 2019

Rev.Fac.Ing.Univ.Antioquia

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In Colombia, hydropower share was 70 % of the total installed capacity and more than 50 % of the monthly generation share in 2015, which coincided with the strongest El Niño Southern Oscillation (ENSO) phenomenon reported in the region. ENSO has been recognized as an influential climate pattern on meteorological variables. The generation via hydropower implies the construction of dams and water reservoirs; these flooded areas generate an important amount of Green House Gases (GHG). In this regard, the main aim of this research was to quantify the diffusing emissions of CO2 and CH4 in the flooded areas of the main hydroelectric power generation facilities in Colombia. GHG emissions were calculated by the implementation of an IPCC methodology. The obtained results show that more than 1,042,500 t CO2-Eq (i.e. CO2 and CH4) are emitted in Colombia per year from this source, representing 4.4 % of the total GHG emissions in the country. As the second aim, the vulnerability of Colombia’s energy independence, in terms of power supply to ENSO and climate change was analyzed using the MERRA-2 dataset from NASA, for the years between 2010 and 2017.

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Section: Occurrences Of Ensomentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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GHG diffuse emissions estimation, and energy security to ENSO using MERRA-2 for largely hydroelectricity-based system

Cuellar

Salomón

Guevara-Luna

et al. 2019

Rev.Fac.Ing.Univ.Antioquia

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“…A pesar de la falta de datos paleoambientales locales, algunos estudios paleoecológicos cercanos no reconocen cambios climáticos significativos en la región entre los siglos X al XVI (Bush & Colinvaux, 1994;Muñoz, et al, 2017). Si bien no se deben descartar estas causas para explicar el abandono de las estructuras, conviene examinar mejor los conflictos territoriales y las pautas de interacción social que pudieron incidir en ello a la luz de la influencia cultural del Chocó y de la cordillera occidental de Antioquia en la alfarería de la zona, y de las migraciones forzadas documentadas en las crónicas de conquista y en la oralidad de la etnia Tule (Espinoza, 2009).…”

Section: Discussionunclassified

El sistema de canales y camellones prehispánico del golfo de Urabá, noroccidente de Colombia. Un reporte arqueológico y geográfico preliminar

Posada-Restrepo

Duarte

González-Severiche

et al. 2019

Rev. Acad. Colomb. Cienc. Ex. Fis. Nat.

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Los sistemas de canales y camellones construidos en tierra durante la época prehispánica fueron una de las alteraciones geomorfológicas más comunes para el control de las inundaciones y la producción agrícola en distintas regiones de América. En Colombia, si bien se han estudiado desde hace varias décadas los hallazgos asociados a los ríos Sinú y San Jorge, la presencia de nuevas estructuras en el golfo de Urabá había permanecido ignorada por la comunidad científica. En este artículo se describen de forma preliminar estos hallazgos en términos de su morfometría y patrones espaciales, se hace una contextualización inicial en el ámbito de la arqueología del golfo de Urabá y de la geografía particular de la cuenca del río León y se plantean algunas hipótesis preliminares considerando las posibilidades de articulación de dichos estudios con las dinámicas territoriales actuales de la región de Urabá.

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“…For example, from ca. 8000 BP to the present, the climate of northern South America has been influenced by both El Niño-Southern Oscillation and the Intertropical Convergence Zone, but during the Younger Dryas and the early Holocene, western and eastern regions were differentially influenced by these climatic phenomena ( Muñoz et al 2017 ). In fact, in their GIS-based vegetation map of the world at the time of the LGM, Ray and Adams (2001) indicated differences between the drier Venezuelan Andes, occupied by semi-desert to the northwest and grasslands to the southeast and the wetter Colombian Andes, occupied by a complex topographic mosaic of forests, grasslands and montane deserts.…”

Section: Discussionmentioning

confidence: 99%

On the absence of the Green-tailed Trainbearer Lesbia nuna (Trochilidae) from Venezuela: an analysis based on environmental niche modelling

Ramoni‐Perazzi

Schuchmann

Bortone

et al. 2017

BDJ

1,076

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BackgroundLesbia nuna, a hummingbird distributed in the tropical Andes, has been included in Venezuela's bird list on the basis of a specimen collected in 1873 at Sierra Nevada, Mérida and deposited in the Natural History Museum, London, with no further records for this country since then. This record, largely considered as valid by most authors, has been questioned by others, although without formal analyses.New informationThe potential habitat range of the Green-Tailed Trainbearer, Lesbia nuna gouldii (Trochilidae), in the northern Andes from Ecuador to Venezuela was modelled, using maximum entropy niche modelling, environmental covariates and records from locations across the Colombian Andes. The predicted suitable habitat range corresponded well to the known range of the subspecies L. n. gouldii in Colombia and clearly excluded Sierra Nevada. Therefore, these analyses suggest that this species should be removed from the Venezuelan bird list.

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Holocene climatic variations in the Western Cordillera of Colombia: A multiproxy high-resolution record unravels the dual influence of ENSO and ITCZ

Cited by 26 publications

References 101 publications

GHG diffuse emissions estimation, and energy security to ENSO using MERRA-2 for largely hydroelectricity-based system

GHG diffuse emissions estimation, and energy security to ENSO using MERRA-2 for largely hydroelectricity-based system

El sistema de canales y camellones prehispánico del golfo de Urabá, noroccidente de Colombia. Un reporte arqueológico y geográfico preliminar

On the absence of the Green-tailed Trainbearer Lesbia nuna (Trochilidae) from Venezuela: an analysis based on environmental niche modelling

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