| Area | Parameters | Increase or decrease in precipitation | |||||
| −20% | −10% | Av. | +10% | +20% | |||
| Desert Areas | Sirhan I | P [MCM] | 412 | 463 | 515 | 566 | 618 |
| r [%] | 0.65% | 1.08% | 1.4% | 1.9% | 2.32% | ||
| discharge [MCM] | 2.6 | 5 | 7.21 | 10.75 | 14.3 | ||
| relative to Average | −4.6 | −2.21 | 0.0 | 3.54 | 7.09 | ||
| change in discharge % of Av. | −64% | −31% | 0.0 | 25% | 98% | ||
| Hamad H | P [MCM] | 894 | 1006 | 1118 | 1230 | 1342 | |
| r [%] | 0.75% | 1.05% | 1.4% | 1.95% | 2.29% | ||
| discharge [MCM] | 6.7 | 10.6 | 15.7 | 24 | 29.5 | ||
| relative to Av. | −9.0 | −5.1 | 0.0 | 8.3 | 13.8 | ||
| change in discharge % of Av. | −57% | −32% | 0.0 | 53% | 88% | ||
| Azraq F | P [MCM] | 834 | 939 | 1043 | 1147 | 1252 | |
| r [%] | 0.45% | 0.8% | 1.2 | 1.55% | 1.9% | ||
| discharge [MCM] | 3.75 | 7.5 | 12.52 | 17.75 | 23.79 | ||
| relative to Av. | −8.75 | −5 | 0.0 | 5.23 | 11.29 | ||
| change in discharge % of Av. | −70% | −40% | 0.0 | 41.8% | 90.3% | ||
| Jafr G | P [MCM] | 537 | 604 | 671 | 738 | 805 | |
| r [%] | 0.8% | 1.11% | 1.5% | 1.82% | 2.2% | ||
| discharge [MCM] | 4.3 | 6.7 | 10.07 | 13.43 | 17.71 | ||
| relative to Av. | −5.77 | −3.37 | 0.0 | 3.36 | 7.64 | ||
| change in discharge % of Av. | −57.3% | −0.33% | 0.0 | 33.37% | 75.87% | ||
| Disi K | P [MCM] | 73.4 | 82.6 | 91.8 | 101 | 110.2 | |
| r [%] | 0.9% | 1.55% | 2.0% | 2% | 2.7% | ||
| discharge [MCM] | 0.66 | 1.28 | 1.84 | 2.32 | 2.97 | ||
| relative to Av. | −1.18 | −0.56 | 0.0 | −0.48 | 1.13 | ||
| change in discharge % of Av. | −64% | −30.4% | 0.0 | 0.26% | 0.61% | ||