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Cambios futuros de precipitación y temperatura sobre América Central y el Caribe utilizando proyecciones climáticas de reducción de escala estadística

Authors: Castillo Rodríguez, Rodrigo Alberto; Montero Acuña, Rosangélica; Amador Astúa, Jorge Alberto; Durán Quesada, Ana María;

Cambios futuros de precipitación y temperatura sobre América Central y el Caribe utilizando proyecciones climáticas de reducción de escala estadística

Abstract

En la presente investigación se muestra mediante el uso del conjunto de proyecciones climáticas de reducción de escala estadística pertenecientes al NEX-GDDP, los cambios a largo plazo en precipitación y temperatura que ocurrirían en América Central y el Caribe a finales del siglo XXI, esto a través del cálculo de las diferencias de los ensambles de los multi-modelos de los dos escenarios correspondientes a las rutas de concentración representativas (RCP 4.5 y RCP 8.5) con un período de 2070-2099 menos el escenario histórico que abarca de 1970-1999. Vislumbrando como un acelerado aumento en las concentraciones de gases de efecto invernadero debido a la dependencia del uso excesivo de combustibles fósiles, traería consigo cambios en esta región, tales como condiciones más secas en países como Guatemala, Belice, Honduras, El Salvador, Nicaragua y Costa Rica, y de manera contraria condiciones más húmedas en la costa Pacífica de países como Colombia, Ecuador y Perú.

The long-term changes in precipitation and temperature that will occur in Central America and the Caribbean at the end of the 21st century are shown using the NEX-GDDP statistical downscaled projections. We used this high resolution dataset to compute the differences between the multi-model ensembles of the two prospective scenarios corresponding to the representative concentration pathways (RCP 4.5 and RCP 8.5) with a period of 2070-2099 and the retrospective baseline scenario covering 1970-1999. Looking at how accelerated and unprecedented increases in concentrations of greenhouse gases will bring about changes in this region, such as drier conditions in countries like Guatemala, Belize, Honduras, El Salvador, Nicaragua and Costa Rica, and in the other hand wetter conditions in the Pacific coast of countries like Colombia, Ecuador and Peru.

UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigaciones Geofísicas (CIGEFI)

UCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Física

Universidad de Costa Rica/[805-B7-605]/UCR/Costa Rica

Universidad de Costa Rica/[805-B6-147]/UCR/Costa Rica

Country
Costa Rica
Related Organizations
Keywords

América Central, RCP 8.5, Central America, RCP 4.5, Cambio climático, Climate change, 551.577 572 8 Factores que afectan la precipitación, NEX-GDDP

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green