GLOBAL CLIMATE CHANGE AND ITS EFFECT ON HYDROLOGICAL RESOURCES OF MEXICO’S CENTRAL REGION

Laura Elena MADEREY RASCÓN, Arturo JIMENEZ, José Joel CARRILLO

Abstract


In this paper, the aridity index included in Köppen’s Climatic Classification is used to estimate the amount of available water in humid basins and is applied to Mexico’s three most populated hydrological regions: the Lerma-Chapala-Santiago basin, the Balsas river basin and the Panuco river basin. An evaluation of their present and future hydrological conditions was made considering three climatic-change stages derived from three models in which it is assumed that CO2 content in the atmosphere will double between years 2025 and 2050. Results obtained for the three basins of study indicate that available surface water and its reserve will decrease in Mexico’s Central Region as a result of climatic change. Most significant is the vulnerability of the Lerma-Chapala-Santiago basin, which, at present, shows important hydrological problems that will definitively be aggravated by the postulated climate change.

Keywords


Available water volume. Climatic change. Hydrological balance. Hydrological basins.

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References


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DOI: http://dx.doi.org/10.15551/scigeo.v59i1.220

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