Research Article
Seasonal Changes in Climate Variables in Rainfed Crop Areas in the Lerma-Chapala-Santiago Basin, Mexico
Table 1
Changes in amplitude and phase of climate variables in the LCSB from the initial period (1960–1985) to the final period (1986–2010).
| | Trend | Variable | Amplitude (α) | Phase (φ) | | Affected area (km2) | % | Range | Affected area (km2) | % | Range |
| | Positive () | | 959.6 | 1.9 | (0.01–0.41) | 1494.3 | 2.9 | (0.01–0.27) | | Tmax | 1901.3 | 3.7 | (0.01–0.32) | 2109 | 4.1 | (0.01–0.26) | | Tmin | 6192.6 | 12.0 | (0.01–0.045) | 5371.4 | 10.4 | (0.01–0.32) |
| | Negative () | | 10133.8 | 19.6 | (−0.43–0.01) | 0 | 0 | 0 | | Tmax | 3839.8 | 7.4 | (−0.35–0.01) | 2768.1 | 5.4 | (−0.01–0.35) | | Tmin | 13180.7 | 25.5 | (−0.62–0.01) | 16.6 | 0.03 | (−0.01–0.23) |
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Percentage of significance. |
