Título

Comparing the climate change signal on a mexican basin’s hydrology evaluated with global and regional climate simulations

Autor

JUAN ALBERTO VELAZQUEZ ZAPATA

RODRIGO DAVILA ORTIZ

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Referencia de publicación

ISSN/2594-0732 FI-UNAM

Referencia de datos

datasetDOI/http://dx.doi.org/10.22201/fi.25940732e.2018.19n3.030

Materias

Cambios climáticos – México - (LEMB) Climatología - (LEMB) Meteorología - (LEMB) Hidrología - (LEMB) BIOLOGÍA Y QUÍMICA - (CTI) CIENCIAS DE LA VIDA - (CTI) OTRAS ESPECIALIDADES DE LA BIOLOGÍA - (CTI) OTRAS ESPECIALIDADES DE LA BIOLOGÍA - (CTI)

Resumen o descripción

"This study compares the climate change signal (CCS) on hydrological indicators over an east central Mexican basin by using two 5-member ensemble climate simulations under the A2 emission scenario: a) the Canadian Regional Climate Model (CRCM) driven by the Canadian Global Model (CGC), hereinafter referred to as CRCM-CGC, and b) CGC simulations. The dynamically downscaled simulations generated from the regional climate model provide a higher resolution. However, both CGC and CRCM-CGC simulations are affected by systematic biases which were corrected before being used in a hydrological model. The bias corrected ensemble climate simulations were used to feed the hydrological model GR4J in order to obtain discharge simulations in a reference (1971- 2000) and a future (2046-2065) period. Results show that, in the reference period, the CGC and CRCM-CGC simulations lead to a good representation of the hydrological annual cycle. Regarding the future period, climate simulations produce a decrease in streamflow and a change in the annual cycle. In particular, CRCM-CGC lead to a larger decrease on the selected indicators than CGC; for example, the median CCS on mean monthly streamflow is -48% and -59% for CGC and CRCM-CGC, respectively. Overall, the choice of CGC or CRCM-CGC yields to different CCS (similar direction but different magnitude) for the study basin. This aspect should be taken into account in the evaluation of climate change impact on water resources for those southern Mexican basins which are excluded from the CRCM and other regional climate models domain."

Editor

Facultad de Ingeniería UNAM

Fecha de publicación

2017

Tipo de publicación

Artículo

Versión de la publicación

Versión publicada

Recurso de información

http://colsan.repositorioinstitucional.mx/jspui/handle/1013/979

Formato

application/pdf

Fuente

Ingeniería Investigación y Tecnología

Idioma

Inglés

Audiencia

Estudiantes

Investigadores

Maestros

Público en general

Sugerencia de citación

Velázquez, J.A. et Dávila, R. (2018) Comparing the climate change signal on a mexican basin’s hydrology evaluated with global and regional climate simulations en Ingeniería Investigación y Tecnología XIX(3) México: Facultad de Ingeniería UNAM.

Repositorio Orígen

Repositorio COLSAN

Descargas

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