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Does the El Niño-Southern Oscillation Affect the Combined Impact of the Atlantic Multidecadal Oscillation and Pacific Decadal Oscillation on the Precipitation and Surface Air Temperature Variability over South America?

Kayano, Mary; Cerón, Wilmar L.; Andreoli, Rita V.; Avila Diaz, Alvaro Javier; Zuluaga Aristizábal, Cristian Felipe; Carvalho, Leila (2022)

Previous studies have shown that the Atlantic Multidecadal Oscillation (AMO) and Pacific Decadal Oscillation (PDO) have combined effects on the precipitation (PRP) variability over South America. The combined impacts have ...
Metodología para la elaboración de mapas de clasificación climática de Thornwaite (1948) mediante el uso de sistemas de información geográfica : Grass y Qgis caso : cuenca hidrográfica del Río Apulo, Colombia

Yaya Chujmanov, Rusian Valery (Ingeniería Geográfica y Ambiental, 2018)

The water crisis affects all regions; The usable fraction has decreased drastically and the management of water on political-administrative boundaries is insufficient to contain this problem. The focus of this work is ...
Semillero Geoperspectiva 2022-1

Romero Paredes, Alfonso; Pyszczek, Oscar Luis; Avila Diaz, Alvaro Javier (Universidad de Ciencias Aplicadas y AmbientalesBogotá, 2022-06-10)

La actividad del Semillero fortalece es una excelente estrategia pedagógica ya que fomenta la solución de problemáticas mediante la investigación involucrando estudiantes de todos los semestres de diferentes carreras. ...

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Does the El Niño-Southern Oscillation Affect the Combined Impact of the Atlantic Multidecadal Oscillation and Pacific Decadal Oscillation on the Precipitation and Surface Air Temperature Variability over South America?
...
Kayano, Mary | 2022

Previous studies have shown that the Atlantic Multidecadal Oscillation (AMO) and Pacific Decadal Oscillation (PDO) have combined effects on the precipitation (PRP) variability over South America. The combined impacts have been assessed considering four mean states as the averages of the variable anomalies during sub-periods overlapping time intervals of the PDO and AMO phases. Since these sub-periods include years under El Niño-Southern Oscillation (ENSO) extremes, the extent to which these years’ occurrence affects the averaged anomaly patterns during different mean states is investigated. The analyses are done for the PRP and surface air temperature (SAT) during the austral winter (June to August) and summer (December to February) of the 1901–2014 period using a composite technique. The nonlinear ENSO response in each mean state for a variable corresponds to the sum of the anomaly composites of the El Niño and La Niña events. In each mean state, the nonlinear PRP and SAT anomalies are not negligible and show similar patterns of the corresponding mean state, with larger magnitudes. For both seasons and all mean states, these similarities are more pronounced for SAT than for PRP. Thus, the ENSO variability affects the mean state’s PRP and SAT anomaly patterns in different ways. As far as we know, analyses of the nonlinear ENSO response of the South American climate during distinct mean states were not performed before. Our results also indicate that the ENSO variability should be considered in the studies of the low-frequency modes and their effects on the mean state over South America. The results presented could be relevant for climate monitoring and modeling studies.

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Metodología para la elaboración de mapas de clasificación climática de Thornwaite (1948) mediante el uso de sistemas de información geográfica : Grass y Qgis caso : cuenca hidrográfica del Río Apulo, Colombia
...
Yaya Chujmanov, Rusian Valery | 2018

The water crisis affects all regions; The usable fraction has decreased drastically and the management of water on political-administrative boundaries is insufficient to contain this problem. The focus of this work is clearly different. The author proposes to evaluate these problems as a nested system based on basins, for which begins with climate as the environmental variable of the highest order, and makes his observations taking as a research tool the water balance. With this objective, he has developed an update to the Thornthwaite climate classification system, in a pilot study on the Apulo river basin, in Colombia. The work carried out here brings the 1948 method to the digital era and develops a new semiautomatic workflow with free and open source geographic information systems: GRASS and QGIS, covering all phases of the process.

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Semillero Geoperspectiva 2022-1
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Romero Paredes, Alfonso | 2022-06-10

La actividad del Semillero fortalece es una excelente estrategia pedagógica ya que fomenta la solución de problemáticas mediante la investigación involucrando estudiantes de todos los semestres de diferentes carreras. Adicionalmente, esta actividad permite hacer investigación aplicada para trasmitir e intercambiar conocimiento por medio workshops, conferencias, seminarios y trabajos de grado.

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Browsing by Subject "Climatología"

Does the El Niño-Southern Oscillation Affect the Combined Impact of the Atlantic Multidecadal Oscillation and Pacific Decadal Oscillation on the Precipitation and Surface Air Temperature Variability over South America? ﻿

Metodología para la elaboración de mapas de clasificación climática de Thornwaite (1948) mediante el uso de sistemas de información geográfica : Grass y Qgis caso : cuenca hidrográfica del Río Apulo, Colombia ﻿

Semillero Geoperspectiva 2022-1 ﻿

Envíos recientes

Does the El Niño-Southern Oscillation Affect the Combined Impact of the Atlantic Multidecadal Oscillation and Pacific Decadal Oscillation on the Precipitation and Surface Air Temperature Variability over South America?

Metodología para la elaboración de mapas de clasificación climática de Thornwaite (1948) mediante el uso de sistemas de información geográfica : Grass y Qgis caso : cuenca hidrográfica del Río Apulo, Colombia

Semillero Geoperspectiva 2022-1

Does the El Niño-Southern Oscillation Affect the Combined Impact of the Atlantic Multidecadal Oscillation and Pacific Decadal Oscillation on the Precipitation and Surface Air Temperature Variability over South America?

Metodología para la elaboración de mapas de clasificación climática de Thornwaite (1948) mediante el uso de sistemas de información geográfica : Grass y Qgis caso : cuenca hidrográfica del Río Apulo, Colombia

Semillero Geoperspectiva 2022-1