Basin Group Baseline (1971 – 2000) 2020s 2050s 2080s
Dry period (Nov. – Apr.) A2 (%) B2 (%) A2 (%) B2 (%) A2 (%) B2 (%)
Salawin 273.7 ± 33 0.9 -1.6 3.4 4.8 14.3 10
Mae Kok 397.9 ± 37 17.1 14.3 21.1 22.1 33.6 28.2
Mae Khong 408.2 ± 94 4.4 14.8 22.7 21.8 37.8 23.7
Chao Phraya 275.5 ± 102 3.1 0.8 7.4 8.4 21.9 13.5
Mae Klong 412.7 ± 21 -4.2 -6.6 -1.9 -0.5 8.4 4.4
Bang Pakong 364.0 ± 24 23.6 23.9 29.3 29.7 32 30.6
Eastern Gulf 450.3 ± 51 4 1.5 6.5 8 17.6 13.3
Western Gulf 318.9 ± 61 -12.9 -15 -10.8 -9.6 -1.4 -5
Southern 666.3 ± 62 -4.6 -7.4 -7.4 -4.4 -2.4 -3
Table 2: Projected rainfall anomalies (%) for dry season in case of A2 and B2 scenarios.