Table 3: Absolute, relative, and proportional areas of the Lerma-Chapala-Santiago watershed with changes in thermal oscillation between time series one (1960–2010) and time series two (1960–1989).

No.Series 1: 1960–2010Series 2: 1960–1989TendencySurface area with changesPercentage area of the watershed
km2%

1Low oscillationExtreme oscillation4,391.878.73.28
2Low oscillationIsothermal13.70.20.01
3Extreme oscillationLow oscillation560.010.00.42
4IsothermalLow oscillation616.211.00.46
Total5,581.71004.17