Table XXXIV.—Discharge table of the Blue Nile at Wad Medani.
| Gauge. | Discharge in m³ per second | |
|---|---|---|
| River rising. | River Falling and Stationary. | |
| 0·0 | 50 | 50 |
| ·2 | 80 | 64 |
| ·4 | 110 | 78 |
| ·6 | 140 | 92 |
| ·8 | 170 | 106 |
| 1·0 | 200 | 120 |
| ·2 | 240 | 146 |
| ·4 | 280 | 172 |
| ·6 | 320 | 198 |
| ·8 | 360 | 224 |
| 2·0 | 400 | 250 |
| ·2 | 450 | 284 |
| ·4 | 500 | 318 |
| ·6 | 550 | 352 |
| ·8 | 600 | 380 |
| 3·0 | 650 | 420 |
| ·2 | 720 | 406 |
| ·4 | 790 | 512 |
| ·6 | 860 | 558 |
| ·8 | 930 | 604 |
| 4·0 | 1000 | 650 |
| ·2 | 1100 | 720 |
| ·4 | 1200 | 790 |
| ·6 | 1300 | 860 |
| ·8 | 1400 | 930 |
| 5·0 | 1500 | 1000 |
| ·2 | 1630 | 1100 |
| ·4 | 1760 | 1200 |
| ·6 | 1890 | 1300 |
| ·8 | 2020 | 1400 |
| 6·0 | 2150 | 1500 |
| ·2 | 2320 | 1620 |
| ·4 | 2490 | 1740 |
| ·6 | 2600 | 1800 |
| ·8 | 2830 | 1980 |
| 7·0 | 3000 | 2100 |
| ·2 | 3200 | 2340 |
| ·4 | 3400 | 2580 |
| ·6 | 3600 | 2820 |
| ·8 | 3800 | 3060 |
| 8·0 | 4000 | 3300 |
| ·2 | 4300 | 3540 |
| ·4 | 4600 | 3780 |
| ·6 | 4900 | 4020 |
| ·8 | 5200 | 4200 |
| 9·0 | 5500 | 4500 |
| ·2 | 5900 | 4840 |
| ·4 | 6300 | 5180 |
| ·6 | 6700 | 5520 |
| ·8 | 7100 | 5860 |
| 10·0 | 7500 | 6200 |
| ·2 | 8000 | 6580 |
| ·4 | 8500 | 6960 |
| ·6 | 9000 | 7340 |
| ·8 | 9500 | 7720 |
| 11·0 | 10000 | 8100 |
| ·2 | 10600 | 8540 |
| ·4 | 11200 | 8980 |
| ·6 | 11800 | 9420 |
| ·8 | 12400 | 9800 |
| 12·0 | 13000 | 10300 |
(1) These discharges include the Rahad river. They represent the discharges below the Rahad river junction referred to the Wad Medani gauge.
(2) During a high flood the river scours, and it silts during a low flood; consequently for exact discharges below 5 metres, the section of the river should be taken annually in December.
Table XXXV.—Discharge Table of the Blue Nile at the Khartoum Gauge.
| Gauge. | River rising | River falling and Stationary |
|---|---|---|
| Discharge in m³ per second. | Discharge in m³ per second. | |
| - ·2 | 100 | 100 |
| +0·0 | 175 | 120 |
| ·2 | 260 | 145 |
| ·4 | 360 | 170 |
| ·6 | 470 | 195 |
| ·8 | 580 | 220 |
| 1·0 | 700 | 250 |
| ·2 | 860 | 340 |
| ·4 | 1020 | 430 |
| ·6 | 1180 | 520 |
| ·8 | 1340 | 610 |
| 2·0 | 1500 | 700 |
| ·2 | 1720 | 880 |
| ·4 | 1940 | 1060 |
| ·6 | 2160 | 1240 |
| ·8 | 2380 | 1420 |
| 3·0 | 2600 | 1600 |
| ·2 | 2980 | 1840 |
| ·4 | 3360 | 2080 |
| ·6 | 3740 | 2320 |
| ·8 | 4120 | 2560 |
| 4·0 | 4500 | 2800 |
| ·2 | 4980 | 3180 |
| ·4 | 5460 | 3560 |
| ·6 | 5940 | 3940 |
| ·8 | 6420 | 4320 |
| 5·0 | 6900 | 4700 |
| ·2 | 7560 | 5220 |
| ·4 | 8220 | 5740 |
| ·6 | 8880 | 6260 |
| ·8 | 9540 | 6780 |
| 6·0 | 10200 | 7300 |
| ·2 | 11000 | 7940 |
| ·4 | 11800 | 8580 |
| ·6 | 12600 | 9220 |
| ·8 | 13400 | 9860 |
| 7·0 | 14200 | 10500 |
| ·2 | ... | 11140 |
| ·4 | ... | 11780 |
| ·6 | ... | 12420 |
This gauge is in backwater when the White Nile is discharging more than the Blue Nile.
Table XXXVI.—Discharge Table of the Atbara river referred to the Khasm el Girba Gauge.
| Gauge. | Discharge. |
|---|---|
| 0·0 | 0·0 |
| ·2 | 20 |
| ·4 | 40 |
| ·6 | 60 |
| ·8 | 80 |
| 1·0 | 100 |
| ·2 | 150 |
| ·4 | 200 |
| ·6 | 250 |
| ·8 | 300 |
| 2·0 | 350 |
| ·2 | 444 |
| ·4 | 538 |
| ·6 | 632 |
| ·8 | 726 |
| 3·0 | 820 |
| ·2 | 1012 |
| ·4 | 1204 |
| ·6 | 1396 |
| ·8 | 1588 |
| 4·0 | 1780 |
| ·2 | 2078 |
| ·4 | 2376 |
| ·6 | 2674 |
| ·8 | 2972 |
| 5·0 | 3270 |
| ·2 | 3596 |
| ·4 | 3922 |
| ·6 | 4248 |
| ·8 | 4574 |
| 6·0 | 4900 |