Possible climate change evidence in ten Mexican watersheds |
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| Institution: | 1. Instituto Mexicano de Tecnología del Agua, Mexico;2. SEGURA Consulting, United States;3. Inter-American Development Bank, United States;1. Centro de Investigación y Desarrollo Tecnológico en Electroquímica, S. C. Parque Tecnológico Querétaro, Sanfandila, Pedro Escobedo, Querétaro, 76703, Mexico;2. Universidad Veracruzana, Campus Región Coatzacoalcos, Chihuahua 803, Petrolera, Coatzacoalcos, Veracruz, 96400, Mexico;3. Benemérita Universidad Autónoma de Puebla, 4 Sur No. 104, Col. Centro, 72000, Puebla, Mexico;1. Department of Biology, University of Magdalena, PO Box 2-1-21630, Carrera 32 No. 22-08, Santa Marta, Magdalena, Colombia;2. Center for Science & Democracy, Union of Concerned Scientists, 2 Brattle Square, Cambridge, MA 02138, USA;3. Social-Ecological Systems Laboratory, Department of Ecology, Universidad Autónoma de Madrid, c. Darwin 2, 28049 Madrid, Spain |
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| Abstract: | This paper suggests possible evidence of climate change in Mexico at the watershed level, based solely on historical data. The official Mexican climate dataset was used to find the best set of stations for each watershed. Maximum and minimum temperatures and rainfall in ten watersheds are analyzed from 1970 to 2009. Maximum temperature trends show a significant increment in most of these watersheds. Furthermore, Daily Temperature Range (DTR) exhibits a positive trend (increments), thus implying an increase in temperature extremes. This study also shows that the difference between maximum and minimum monthly temperature trends is negatively correlated with monthly precipitation trends. As a result, land-use and land-cover changes could be the main drivers of climate change in the region. |
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| Keywords: | Climate change Watershed Mexico DTR |
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