Table 1.
Total precipitation amount during crop growing season for the historic and future periods and differences between drought and non-drought year (Average of four GCMs).
| RCP4.5 | RCP8.5 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Periods | Historical (1956–2015) | f1 (2020–2059) | f2 (2060–2099) | f1 (2020–2059) | f2 (2060–2099) | ||||||||||
| Countries | Precipitation (mm) | Precipitation difference (%) | Precipitation (mm) | Precipitation difference (%) | Precipitation (mm) | Precipitation difference (%) | Precipitation (mm) | Precipitation difference (%) | Precipitation (mm) | Precipitation difference (%) | |||||
| DY | NDY | DY | NDY | DY | NDY | DY | NDY | DY | NDY | ||||||
| Cambodia | 823 (36) | 847 (24) | − 2.9 | 1088 (15.8) | 1,096 (24.2) | − 1.0 | 1128 (17.5) | 1107 (22.5) | 1.6 | 1075 (18.2) | 1090 (21.8) | − 1.6 | 1109 (16) | 1121 (24) | − 1.2 |
| Lao PDR | 1130 (31) | 1195 (29) | − 5.8 | 1347 (21) | 1462 (19) | − 8.6 | 1386 (19) | 1509 (21) | − 8.9 | 1301 (20.8) | 1477 (19.2) | − 13.6 | 1393 (19.8) | 1532 (20.2) | − 10.1 |
| Thailand | 786 (36) | 846 (24) | − 7.7 | 960 (16.2) | 1006 (23.8) | − 5.0 | 1019 (15.5) | 1061 (24.5) | − 4.3 | 945 (16) | 1027 (24) | − 8.7 | 1018 (18.5) | 1064 (21.5) | − 4.7 |
| VCHP | 831 (31) | 1014 (29) | − 22.1 | 1061 (13.2) | 1286 (26.8) | − 21.5 | 1062 (15) | 1222 (25) | − 15.3 | 1006 (14) | 1245 (26) | − 23.5 | 1034 (14.5) | 1281 (25.5) | − 23.6 |
| Mekong Delta | 888 (32) | 941 (28) | − 6.1 | 1142 (17.5) | 1114 (22.5) | 2.0 | 152 (19.5) | 1155 (20.5) | − 0.3 | 1158 (18.8) | 1138 (21.2) | 1.7 | 1189 (18.2) | 1186 (21.8) | 0.2 |
The numbers in the bracket indicate the average number of drought and non-drought years for four GCMs. Negative values indicate the decreases in precipitation during drought years.
DY Drought year, NDY Non-drought year, VCHP Vietnam Central High Plain.