A43G-0395
Possible Climate Change Evidence in Ten Mexican Watersheds
Thursday, 17 December 2015
Poster Hall (Moscone South)
Efrain Mateos1, Sergio Santana1, Martin Montero1, Alejandro Deeb2 and Alfred Grunwaldt3, (1)IMTA Mexican Institute of Water Technology, Jiutepec, Mexico, (2)SEGURA Consulting, Rockville, MD, United States, (3)Inter-American Development Bank, Washington, DC, United States
Abstract:
This work 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.
