Chapter V (2)

Text size

1903
======+======+========+==========================================+=======
Loca- |Kilo- | Date. | MONGALLA GAUGE (32 kilom. north of | Dis-
lity. |metres| | Gondokoro) |charge
| from | +-----+-----+-----+-----+-----+-------+----+ m³ per
|Gondo-| | 5 | 4 | 3 | 2 | 1 | day | 1 |second.
|koro. | |days |days | days| days| day | of | day|
| | | be- | be- | be- | be- | be- | dis- | af-|
| | |fore.|fore.|fore.|fore.|fore.|charge.|ter.|
------+------+--------+-----+-----+-----+-----+-----+-------+----+-------
Gondo-| 0 | 1 April| ..| ..| ..| ..| ..| 0·83 |0·83| 693
koro | | | | | | | | | | [9]
| | 9 Sep- | 2·73| 2·85| 2·90| 3·02| 3·16| 3·14 |3·08| 1985
| |tember | | | | | | | | [10]
Mon- | 32 |14 Sep- | 3·14| 3·08| 2·90| 2·84| 2·82| 2·82 |2·82| 2046
galla | |tember | | | | | | | |
Der- | 156 |16 Sep- | 2·90| 2·84| 2·82| 2·82| 2·82| 2·84 |2·92| 888
wish | |tember | | | | | | | |
Dem | | | | | | | | | |
North | 415 |18 Sep- | 2·82| 2·82| 2·82| 2·84| 2·92| 3·06 |3·12| 532
of | |tember | | | | | | | |
Gaba- | | | | | | | | | |
Shamba| | | | | | | | | |
Hillet| 538 | 1 Sep- | 2·52| 2·52| ? | ? | ? | 2·52 |2·45| 375
Nur | |tember | | | | | | | |
Hillet| 542 |13 April| 0·87| 0·89| 0·90| 0·90| 0·87| 0·88 |0·88| 331
Nur | | | | | | | | | |
South | 741 |14 April| 0·89| 0·90| 0·90| 0·87| 0·88| 0·88 |0·89| 285
of | | | | | | | | | |
Lake | | | | | | | | | |
No | | | | | | | | | |
South | 742 |31 Au- | 2·49| 2·52| 2·52| ? | ? | ? |2·52| 318
of | |gust | | | | | | | |
Lake | | | | | | | | | |
No | | | | | | | | | |
1904
Gondo-| |14 May | 1·89| 1·89| 1·96| 2·03| 2·10| 2·03 |2·07| 1138
koro | | | | | | | | | |
Bôr | 165 |12 May | 1·89| 1·89| 1·89| 1·89| 1·96| 2·03 |2·10| 813
South | 742 |22 May | 2·03| 2·03| 2·03| 2·07| 2·07| 2·17 |2·17| 302
of | | | | | | | | | |
Lake | | | | | | | | | |
No | | | | | | | | | |

[9] 641 + 52 for side channel.

[10] 1847 + 138 for side channel.

TABLE XVI.--_Observed discharges of the Bahr El Gazelle referred to the Tewfikia gauge on the White Nile._

============+===========================+=======+===========
Date | GAUGE | Dis- | Remarks.
of +------+------+------+------+charges|
discharge. | Day. | 1 | 2 | 3 | m³ |
| | day | days | days | per |
| |after.|after.|after.|second.|
------------+------+------+------+------+-------+-----------
21 September| 3·31 | 3·33 | 3·35 | 3·36 | 20 |
30 August | 2·74 | 2·75 | 2·76 | 2·77 | 12 |
============+======+======+======+======+=======+===========

TABLE XVII.--_Observed discharges of the Bahr El Zeraf referred to the Tewfikia gauge on the White Nile._

1903
==============+==============================+===========+==========
Date | GAUGE |Discharge | Remarks.
of discharge. +-----------+-------+----------+ m³ |
| 1 | Day. | 1 |per second.|
|day before.| |day after.| |
--------------+-----------+-------+----------+-----------+----------
16 April | 0·24 | 0·24 | 0·24 | 50 |
22 September | 3·31 | 3·33 | 3·35 | 158 |
8 May | 0·25 | 0·26 | 0·26 | 61 |
29 August | 2·68 | 2·70 | 2·72 | 110 |App. gauge
1904
23 May | 1·35 | 1·38 | 1·40 | 124 |
==============+===========+=======+==========+===========+==========

TABLE XVIII.--_Observed discharges of the Albert Nile above the Sobat junction referred to the Tewfikia gauge._

1903
=============+=================================+===========
Date | GAUGE |Discharge
of discharge.+-----------+----------+----------+ m³
| 1 | day. | 1 |per second.
|day before.| |day after.|
-------------+-----------+----------+----------+-----------
16 April | ·24 | ·24 | ·24 | 349
22 September | 3·31 | 3·33 | 3·35 | 450
=============+===========+==========+==========+===========

TABLE XIX.--_Observed discharges of the Sobat River referred to the Dulaib Hilla gauge._

1903
=============+===========+==========+==========+===========
17 April | .. | ·10 | .. | 45
26 August | 2·70 | 2·71 | 2·74 | 769
26 September | 3·16 | 3·17 | 3·19 | 895
=============+===========+==========+==========+===========

TABLE XX.--_Observed discharges of the White Nile just below the Sobat junction referred to the Tewfikia gauge._

1903
=============+===========+=========+==========+============
17 April | ·24 | ·24 | ·24 | 381
26 August | 2·64 | 2·65 | 2·66 | 1046
26 September | 3·37 | 3·38 | 3·40 | 1304
=============+===========+=========+==========+============

TABLE XXI.--_Observed discharges of the White Nile at Duem referred to the Duem and Khartoum gauges._

===========+======+==================================+=========
Date. | Duem | KHARTOUM GAUGES |Discharge
|Gauge | | cubic
| - +-------+-------+-------+----------+ metres
|Gauge.|3 days |2 days | day | day of | per
| |before.|before.|before.|discharge.| second.
-----------+------+-------+-------+-------+----------+---------
| | | | | |
1902 | | | | | |
| | | | | |
May 13 | ·51 | -·06 | -·07 | -·04 | -·04 | 347
June 11 | ·95 | ·76 | ·75 | ·77 | ·84 | 650
July 8 | 1·42 | 1·70 | 1·70 | 1·85 | 2·03 | 788
August 5 | 2·20 | 3·52 | 3·62 | 3·71 | 3·79 | 867
September 2| 3·48 | 5·30 | 5·30 | 5·20 | 5·20 | 330
October 1 | 3·50 | 5·03 | 5·06 | 5·16 | 5·14 | 870
October 28 | 2·50 | 3·35 | 3·30 | 3·23 | 3·16 | 802
December 1 | 2·00 | 2·11 | 2·10 | 2·08 | 2·06 | 930
December 29| 2·04 | 1·54 | 1·50 | 1·48 | 1·45 | 1518
| | | | | |
1903 | | | | | |
| | | | | |
January 27 | 1·12 | 0·90 | 0·87 | 0·84 | 0·83 | 663
February 24| 0·86 | 0·36 | 0·32 | 0·29 | 0·28 | 462
March 24 | 0·46 | 0·02 | 0·01 | 0·01 | 0·02 | 559
April 21 | 0·38 | -0·14 | -0·12 | -0·12 | -0·16 | 415
May 19 | 0·38 | -0·26 | -0·23 | -0·21 | -0·19 | 447
June 16 | 1·09 | 1·41 | 1·56 | 1·65 | 1·75 | 658
July 1 | 1·31 | 1·61 | 1·54 | 1·54 | 1·54 | 884
„ 14 | 1·71 | 2·55 | 2·58 | 2·75 | 2·80 | 835
August 4 | 2·46 | 3·50 | 3·80 | 4·05 | 4·40 | 768
„ 11 | 3·28 | 4·95 | 5·06 | 5·06 | 5·10 | 579
„ 18 | 3·70 | 5·55 | 5·70 | 5·80 | 5·70 | 534
„ 23 | 4·08 | 5·80 | 5·90 | 5·95 | 6·00 | 654
„ 28 | 4·18 | 6·03 | 6·08 | 6·00 | 6·05 | 710
September 2| 4·33 | 6·15 | 6·28 | 6·24 | 6·30 | 571
„ 7 | 4·43 | 6·20 | 6·20 | 6·15 | 6·12 | 737
„ 12 | 4·46 | 6·24 | 6·14 | 6·15 | 6·05 | 653
„ 18 | 4·40 | 5·86 | 5·95 | 5·88 | 5·88 | 840
„ 24 | 4·28 | 5·95 | 6·00 | 6·10 | 6·10 | 763
October 7 | 3·93 | 5·57 | 5·40 | 5·32 | 5·10 | 1588
November 3 | 3·11 | 3·90 | 3·85 | 3·75 | 3·65 | 1563
„ 24 | 2·44 | 2·65 | 2·63 | 2·63 | 2·60 | 1665
December 8 | 2·06 | 2·30 | 2·28 | 2·20 | 2·15 | 1462
„ 22 | 1·80 | 1·90 | 1·90 | 1·88 | 1·88 | 1403
| | | | | |
1904 | | | | | |
| | | | | |
January 6 | 1·66 | 1·78 | 1·78 | 1·78 | 1·75 | 1508
„ 20 | 1·54 | 1·48 | 1·48 | 1·48 | 1·55 | 1466
===========+======+=======+=======+=======+==========+=========

TABLE XXII.--_Observed discharges of the Blue Nile at Khartoum referred to the Wad-Medani and Khartoum gauges._

1902
============+==========================+=======+=========+=========
Date | WAD MEDANI GAUGES | Dis- | |
of +-------+-------+----------+charge | |
Discharge. | 2 | 1 | Date |m³ per | Khartoum| Remarks.
| days | day | of |second.| gauges.|
|before.|before.|discharge.| | |
------------+-------+-------+----------+-------+---------+---------
9 May | ·39 | ·39 | ·37 | 184 | -0·05 |
23 „ | ·71 | ·61 | ·65 | 194 | 0·16 |
6 June | 2·07 | 2·03 | 1·97 | 604 | 0·76 |
20 „ | 2·97 | 3·27 | 3·39 | 695 | 1·06 |
27 „ | 3·04 | 3·89 | 4·29 | 837 | 1·30 |
4 July | 3·80 | 3·70 | 3·80 | 1032 | 1·75 |
11 „ | 4·56 | 4·38 | 4·48 | 1453 | 2·07 |
18 „ | 4·80 | 5·10 | 5·20 | 1612 | 2·33 |
25 „ | 5·70 | 5·66 | 5·76 | 1885 | 2·64 |
1 August | 7·06 | 7·28 | 7·56 | 3420 | 3·34 |
8 „ | 8·56 | 8·76 | 8·86 | 4880 | 4·20 |
15 „ | 9·14 | 9·02 | 8·96 | 4720 | 4·50 |
22 „ | 10·08 | 10·00 | 9·66 | 5540 | 4·93 |
29 „ | 10·46 | 10·52 | 10·32 | 7180 | 5·34 |
5 September| 10·42 | 10·32 | 10·30 | 6580 | 5·27 |
12 „ | 10·40 | 10·28 | 10·60 | 5800 | 5·35 |
19 „ | 10·32 | 10·00 | 10·30 | 5760 | 5·30 |
26 „ | 10·00 | 10·10 | 9·90 | 4800 | 5·10 |
3 October | 9·94 | 9·88 | 9·70 | 4880 | 5·03 |
10 „ | 8·40 | 8·20 | 8·00 | 3250 | 3·45 |
17 „ | 7·38 | 7·48 | 7·40 | 2460 | 3·73 |
24 „ | 6·94 | 6·88 | 6·78 | 2030 | 3·40 |
31 „ | 6·18 | 6·14 | 6·04 | 1244 | 3·00 |
7 November | 5·66 | 5·60 | 5·50 | 1272 | 2·77 |
14 „ | 5·10 | 5·06 | 5·00 | 1035 | 2·48 |
21 „ | 4·74 | 4·74 | 4·70 | 802 | 2·23 |
28 „ | 4·56 | 4·54 | 4·46 | 787 | 2·11 |
5 December | 4·08 | 4·04 | 4·00 | 654 | 1·94 |
12 „ | 3·73 | 3·74 | 3·66 | 486 | 1·80 |
23 „ | 3·43 | 3·32 | 3·26 | 476 | 1·58 |
1903
2 January | 2·90 | 2·88 | 2·84 | 348 | 1·39 |
9 „ | 2·64 | 2·60 | 2·58 | 270 | 1·22 |
16 „ | 2·48 | 2·46 | 2·44 | 248 | 1·09 |
23 „ | 2·34 | 2·32 | 2·30 | 250 | 0·94 |
6 February | 2·06 | 2·04 | 2·04 | 226 | 0·60 |
20 „ | 1·86 | 1·84 | 1·84 | 152 | 0·39 |
6 March | 1·60 | 1·60 | 1·58 | 202 | 0·18 |
20 „ | 1·36 | 1·34 | 1·34 | 201 | 0·04 |
3 April | 1·24 | 1·20 | 1·20 | 132 |[=0]·12 |
17 „ | 1·08 | 1·04 | 1·04 | 154 |[=0]·16 |
1 May | 0·98 | 0·98 | 0·96 | 121 |[=0]·16 |
8 „ | 0·88 | 0·88 | 0·90 | Nil |[=0]·23 |
15 „ | 0·88 | 0·92 | 0·98 | „ |[=0]·26 |
22 „ | 1·40 | 1·66 | 1·70 | „ |[=0]·09 |
28 „ | 2·74 | 1·51 | 3·43 | 374 | 0·53 |
6 June | 4·05 | 3·61 | 3·65 | 970 | 1·40 |
19 „ | 4·70 | 4·62 | 4·52 | 1500 | 1·90 |
26 „ | 4·25 | 4·51 | 4·31 | 1089 | 1·58 |
3 July | 4·71 | 5·27 | 5·61 | 1314 | 1·78 |
10 „ | 6·45 | 6·55 | 6·67 | 1952 | 2·48 |
17 „ | 6·74 | 6·57 | 6·91 | 2267 | 2·75 |
24 „ | 7·97 | 7·81 | 7·87 | 3183 | 3·40 |
31 „ | 7·77 | 7·67 | 7·70 | 2870 | 3·45 |
5 August | 9·81 | 10·11 | 10·11 | 7584 | 4·60 |
10 „ | 10·15 | 9·99 | 9·89 | 7100 | 5·06 |
14 „ | 10·59 | 10·71 | 10·57 | 9340 | 5·65 |
21 „ | 10·49 | 10·73 | 10·71 | 9519 | 5·90 |
28 „ | 10·47 | 10·41 | 10·61 | 9544 | ? |
4 September| 10·68 | 10·44 | 10·40 | 8474 | 6·20 |
11 „ | 10·74 | 10·52 | 10·46 | 8385 | 6·15 |
18 „ | 9·94 | 9·92 | 9·96 | 7070 | 5·88 |
25 „ | 10·52 | 10·46 | 10·32 | 8965 | 6·08 |
2 October | 9·22 | 9·48 | 9·36 | 6581 | 5·53 |
9 „ | 9·14 | 9·04 | 8·64 | 5749 | 5·15 |
16 „ | 7·97 | 7·94 | 8·07 | 3812 | 4·45 |
23 „ | 8·90 | 8·64 | 8·54 | 4198 | 4·56 |
30 „ | 7·53 | 7·33 | 7·29 | 2893 | 4·00 |
6 November | 6·86 | 6·68 | 6·32 | 2275 | 3·50 |
13 „ | 6·00 | 5·90 | 5·70 | 1790 | 3·10 |
20 „ | 5·71 | 5·65 | 5·55 | 1456 | 2·65 |
4 December | 4·90 | 4·88 | 4·84 | 1102 | 2·35 |
18 „ | 4·36 | 4·30 | 4·28 | 789 | 1·90 |
25 „ | 3·90 | 3·88 | 3·84 | 722 | 1·88 |
1904
1 January | 3·60 | 3·66 | 3·64 | 604 | 1·80 |
15 „ | 3·40 | 3·38 | 3·36 | 488 | 1·59 |
============+=======+=======+==========+=======+=========+=========

TABLE XXIII.--_Observed discharges of the Atbara referred to the Khasm El Girba gauge._

1903
============+=====================================+=======+=======
Date of | GAUGES | Dis- |REMARKS
Discharge. +-----+-----+-----+-----+-----+-------+charge |
| 5 | 4 | 3 | 2 | 1 | Date | m³ |
|days |days |days | days| day | of | per |
| be- | be- | be- | be-| be- | dis- |second.|
|fore.|fore.|fore.|fore.|fore.|charge.| |
------------+-----+-----+-----+-----+-----+-------+-------+-------
16 July | 2·65| 2·31| 2·10| 2·10| 2·65| 2·28 | 381 |
23 „ | 2·37| 2·55| 2·74| 2·83| 2·70| 2·70 | 538 |
27 „ | 2·70| 2·70| 3·00| 2·62| 2·53| 2·60 | 780 |
2 August | 2·76| 2·80| 3·29| 3·54| 4·21| 4·00 | 758 |
5 „ | 3·54| 4·21| 4·00| 3·56| 3·25| 3·35 | 1448 |
14 „ | 3·29| 3·72| 4·61| 4·37| 4·53| 4·60 | 2318 |
15 „ | 3·72| 4·61| 4·37| 4·53| 4·60| 4·85 | 2931 |
27 „ | 5·12| 4·82| 4·54| 4·35| 4·20| 4·80 | 2632 |
30 „ | 4·35| 4·20| 4·80| 4·55| 4·55| 4·75 | 3088 |
5 September| 4·45| 4·52| 4·52| 4·60| 4·70| 4·55 | 2822 |
12 „ | 4·58| 4·50| 4·15| 4·30| 3·89| 3·95 | 2091 |
18 „ | 3·80| 3·84| 3·71| 3·88| 4·36| 4·20 | 1672 |
25 „ | 4·12| 3·80| 4·45| 3·30| 3·25| 3·10 | 1267 |
28 „ | 3·30| 3·25| 3·10| 2·89| 3·42| 3·10 | 902 |
2 October | 3·42| 3·10| 3·13| 3·05| 2·88| 2·78 | 925 |
4 „ | 3·13| 3·05| 2·88| 2·78| 2·78| 2·90 | 754 |
5 „ | 3·05| 2·88| 2·78| 2·78| 2·90| 2·75 | 703 |
============+=====+=====+=====+=====+=====+=======+=======+=======

Appendix G.

TABLES GIVING MEAN MONTHLY DISCHARGES OF THE NILE AND ITS TRIBUTARIES DURING 1902, 1903 AND 1904.

TABLE XXIV.--_Mean discharges of the Nile tributaries in cubic metres per second at the various gauge stations in 1902, 1903, 1904._

1902
=========+=======+====================+=====+======+=====+========+
Month. | Victo-| ALBERT NILE | Ga- |Sobat |White| White |
| ria +-----+------+-------+zelle|river.| Nile| Nile |
|Nile at|Wade-|Gondo-| Above |river| | at | at |
| Ripon |lai. | koro.| Sobat | app.| | Tew-| Khar- |
| Falls.| | | junc- | | | fi- | toum. |
| | | | tion. | | | kia.| |
| | | | | | | | |
---------+-------+-----+------+-------+-----+------+-----+--------+
January | 510 | 620| 660 | .. | .. | .. | ..| 950 |
February | 510 | 580| 640 | .. | .. | .. | ..| 550 |
March | 500 | 570| 660 | .. | .. | .. | ..| 420 |
April | 530 | 540| 550 | .. | .. | .. | ..| 370 |
May | 560 | 560| 630 | .. | .. | .. | ..| 350 |
June | 550 | 550| 550 | .. | .. | .. | ..| 600 |
---------+-------+-----+------+-------+-----+------+-----+--------+
July | 530 | 560| 600 | .. | .. | .. | ..| 900 |
August | 520 | 580| 1000 |340 | .. | 570 | 910| 600[11]|
September| 510 | 610| 820 |420 | .. | 810 | 1230| 600[11]|
October | 490 | 640| 780 | .. | .. | .. | ..| 900 |
November | 500 | 710| 900 | .. | .. | .. | ..| 850 |
December | 490 | 740| 860 | .. | .. | .. | ..|1202 |
+-------+-----+------+-------+-----+------+-----+--------+
Year | 520 | 600| 720 | .. | .. | .. | ..| 690 |
---------+-------+-----+------+-------+-----+------+-----+--------+
1903
=========+=======+=====+======+=======+=====+======+=====+========+
January | 530 | 710| 760 |400 | 0 | 600 | 1000|1000 |
February | 610 | 680| 740 |370 | 0 | 230 | 600| 600 |
March | 630 | 660| 700 |350 | 0 | 130 | 480| 500 |
April | 650 | 640| 700 |360 | 0 | 40 | 400| 420 |
May | 740 | 670| 900 |390 | 0 | 100 | 490| 420 |
June | 800 | 710| 1020 |400 | 0 | 320 | 720| 600 |
+-------+-----+------+-------+-----+------+-----+--------+
July | 840 | 760| 1100 |410 | 10 | 410 | 820| 700[11]|
August | 790 | 820| 1600 |420 | 10 | 680 | 1100| 400[11]|
September| 730 | 870| 2100 |430 | 20 | 870 | 1300| 600[11]|
October | 770 | 970| 1900 |360 | 30 | 1040 | 1400|1700 |
November | 810 | 1040| 1700 |350 | 30 | 1080 | 1430|1600 |
December | 810 | 1060| 1200 |380 | 30 | 1080 | 1460|1450 |
+-------+-----+------+-------+-----+------+-----+--------+
Year | 730 | 800| 1200 |390 | 10 | 550 | 940| 830 |
---------+-------+-----+------+-------+-----+------+-----+--------+
1904
=========+=======+=====+======+=======+=====+======+=====+========+
January | .. | 1060| 1100 |460 | 30 | 770 | 1230|1200 |
February | .. | 1030| 1060 |430 | 20 | 230 | 660| 800 |
March | .. | 1000| 1020 |430 | 20 | 130 | 560| 520 |
April | .. | 1000| 1060 |430 | 10 | 100 | 530| 500 |
May | .. | ..| 1200 |430 | 0 | 160 | 590| 500 |
June | .. | ..| 1200 |400[11]| 0 | 290 | 690| 550 |
+-------+-----+------+-------+-----+------+-----+--------+
July | .. | ..| .. | .. | .. | .. | ..| .. |
August | .. | ..| .. | .. | .. | .. | ..| .. |
September| .. | ..| .. | .. | .. | .. | ..| .. |
October | .. | ..| .. | .. | .. | .. | ..| .. |
November | .. | ..| .. | .. | .. | .. | ..| .. |
December | .. | ..| .. | .. | .. | .. | ..| .. |
+-------+-----+------+-------+-----+------+-----+--------+
Year | .. | ..| .. | .. | .. | .. | ..| .. |
=========+=======+=====+======+=======+=====+======+=====+========+

1902
=========+=====+======+=======+============+=======+========
Month. | Blue|Atbara| Total | Nile at: |Rosetta|Damietta
| Nile|river.| for: | Halfa = |branch.| branch.
| at | | White,|1^{st} Jan.-| |
|Khar-| | Blue |1^{st} July.| |
|toum.| | and | Assuân = | |
| | | Atbara|1^{st} July-| |
| | |rivers.|1^{st} Jan. | |
---------+-----+------+-------+------------+-------+--------
January | 280| 0 | 1230 | 1100 | 1000 | 20
February | 240| 0 | 790 | 720 | 290 | 40
March | 190| 0 | 610 | 600 | 40 | 40
April | 190| 0 | 560 | 530 | 0 | 0
May | 180| 0 | 530 | 510 | 0 | 0
June | 600| 50 | 1250 | 550 | 0 | 0
---------+-----+------+-------+------------+-------+--------
July | 1500| 500 | 2900 | 1100 | 0 | 0
August | 5000| 1200 | 6300 | 3600 | 800 | 400
September| 6200| 1200 | 8000 | 6600 | 2600 | 400
October | 2800| 80 | 3780 | 4950 | 2500 | 1300
November | 1000| 0 | 1850 | 2400 | 1400 | 700
December | 500| 0 | 1700 | 1700 | 1600 | 140
+-----+------+-------+------------+-------+--------
Year | 1560| 250 | 2500 | 2030 | 850 | 340
---------+-----+------+-------+------------+-------+--------
1903
=========+=====+======+=======+============+=======+========
January | 300| 0 | 1300 | 1300 | 1300 | 20
February | 240| 0 | 840 | 880 | 500 | 20
March | 180| 0 | 680 | 620 | 100 | 30
April | 120| 0 | 540 | 480 | 0 | 0
May | 280| 0 | 700 | 440 | 0 | 0
June | 1200| 200 | 2000 | 630 | 0 | 0
+-----+------+-------+------------+-------+--------
July | 2500| 600 | 3800 | 1400 | 0 | 150
August | 8200| 2300 | 10900 | 5700 | 1500 | 300
September| 8200| 1500 | 10300 | 8600 | 3300 | 2000
October | 4500| 0 | 6200 | 6300 | 3500 | 2200
November | 1700| 0 | 3200 | 3400 | 2500 | 1600
December | 800| 0 | 2253 | 2000 | 1100 | 800
+-----+------+-------+------------+-------+--------
Year | 2350| 380 | 3560 | 2650 | 1150 | 590
---------+-----+------+-------+------------+-------+--------
1904
=========+=====+======+=======+============+=======+========
January | 500| 0 | 1700 | 1400 | 1000 | 580
February | 300| 0 | 1100 | 1300 | 850 | 110
March | 210| 0 | 730 | 850 | 110 | 250
April | 200| 0 | 700 | 650 | 0 | 80
May | 300| 0 | 800 | 600 | 0 | 10
June | 500| 50 | 1050 | 950 | 0 | 30
+-----+------+-------+------------+-------+--------
July | 2600| 800 | .. | 1100 | 30 | 80
August | 5500| 1100 | .. | 5900 | 2000 | 1000
September| ..| 700 | .. | .. | .. | ..
October | ..| .. | .. | .. | .. | ..
November | ..| .. | .. | .. | .. | ..
December | ..| .. | .. | .. | .. | ..
+-----+------+-------+------------+-------+--------
Year | ..| .. | .. | .. | .. | ..
=========+=====+======+=======+============+=======+========

[11] Blue Nile water flowing up the White Nile and decreasing the
normal discharge.

Appendix H

TABLE XXV.--_Minimum and Maximum Discharges of the Nile and its tributaries in 1902 and 1903._

Appendix I.

TABLE XXVI.--_Table of mean monthly Discharges at Khartoum, Assuân and Cairo, for the maximum, minimum and mean years._

=========+==================+==================+==================
Month | 1877-78 | 1878-79 | MEAN OF
| MINIMUM YEAR | MAXIMUM YEAR | 20 YEARS
+-----+-----+------+-----+-----+------+-----+-----+------
| Blue| As- |Cairo.| Blue| As- |Cairo.| Blue| As- |Cairo.
| Nile|suân.| | Nile|suân.| | Nile|suân.|
| at | | | at | | | at | |
|Khar-| | |Khar-| | |Khar-| |
|toum.| | |toum.| | |toum.| |
---------+-----+-----+------+-----+-----+------+-----+-----+------
June | 1000| 800| 600 | 1000| 500| 250 | 1000| 750| 500
July | 2800| 2400| 1100 | 3500| 2000| 900 | 2800| 2200| 1100
August | 5300| 5600| 3900 | 8200| 7900| 5200 | 7000| 7900| 5300
September| 4700| 5900| 4400 |12500|12100| 8600 | 8500| 9200| 7200
October | 2500| 4000| 3900 | 8000| 9300|10300 | 4500| 6000| 6900
November | ..| 2400| 2550 | ..| 4700| 6500 | ..| 3300| 3700
December | ..| 1500| 1600 | ..| 3200| 3600 | ..| 2200| 2300
January | ..| 1200| 1300 | ..| 2400| 2600 | ..| 1600| 1600
February | ..| 800| 800 | ..| 2100| 2100 | ..| 1200| 1200
March | ..| 600| 550 | ..| 1900| 1900 | ..| 850| 800
April | ..| 500| 400 | ..| 1600| 1600 | ..| 700| 620
May | ..| 400| 300 | ..| 1500| 1500 | ..| 600| 520
---------+-----+-----+------+-----+-----+------+-----+-----+------
Mean | ..| 2175| 1783 | ..| 4100| 3754 | ..| 3041| 2645
---------+-----+-----+------+-----+-----+------+-----+-----+------

NOTE.--The very high discharges at Assuân and Cairo in April and May 1879; the minimum discharge of that year was about 1500 cubic metres per second. There has never been any discharge like that since.

Appendix J.

DISCHARGE TABLES OF THE DIFFERENT GAUGES OF THE NILE AND ITS TRIBUTAIRIES.

TABLE XXVII.--_Discharges table of the Victoria Nile at the Ripon Falls._

======+=========+=====================================================
Gauge.|Discharge| Remarks.
| m³ per |
| second. |
------+---------+-----------------------------------------------------
0·0 | 380 |This discharge table is the mean of two alternative
·1 | 410 |tables; one assuming that the width of the sill of
·2 | 450 |the Ripon Falls was 127 metres as stated by Sir
·3 | 480 |William Garstin, the other assuming that only half
·4 | 520 |this width was the working sill, the rest being more
·5 | 550 |or less shallow water. The constant has been taken as
------+---------+·57. Sir William Garstin makes the width of the sill
·6 | 580 |70 + 40 + 13 = 127 metres, while Chavanne gives it as
·7 | 620 |82 + 14 + 55 + 22 = 173 metres.
·8 | 660 |
·9 | 700 |The wider the sill, the quicker is the rise of
1·0 | 740 |discharge from the measured discharge at the gauge of
------+---------+·51.
·1 | 780 |
·2 | 820 |
·3 | 860 |
·4 | 900 |
·5 | 950 |
------+---------+
·6 | 990 |
·7 | 1040 |
·8 | 1090 |
·9 | 1140 |
2·0 | 1190 |
======+=========+=======================================================

TABLE XXVIII.--_Discharge table of the Albert Nile at Wadelaï._

======+============
| Discharge
Gauge.|cubic metres
| per second.
------+------------
0·0 | 520
·1 | 544
·2 | 568
·3 | 592
·4 | 616
·5 | 640
·6 | 668
·7 | 696
·8 | 724
·9 | 752
------+------------
1·0 | 780
·1 | 810
·2 | 840
·3 | 870
·4 | 900
·5 | 930
·6 | 962
·7 | 994
·8 | 1026
·9 | 1058
------+------------
2·0 | 1090
·1 | 1104
·2 | 1118
·3 | 1132
·4 | 1146
·5 | 1160
======+============

TABLE XXIX.--_Discharge Table of the Albert Nile at the Gondokoro gauge._

======+============+===================================================
Gauge.| Discharge | Remarks.
|cubic metres|
| per second.|
------+------------+--------------------------------------------------
0·0 | 550 |There is a scour of a metre and upwards at this
·2 | 600 |gauge site during a high flood. The pit is
·4 | 660 |apparently filled with sand during a low flood.
·6 | 740 |
·8 | 820 |
1·0 | 900 |
------+------------+
·2 | 1060 |
·4 | 1220 |
·6 | 1380 |
·8 | 1540 |
2·0 | 1700 |
------+------------+
·2 | 1900 |
·4 | 2100 |
·6 | 2300 |
·8 | 2500 |
3·0 | 2700 |
======+============+==================================================

TABLE XXX.--_Discharge table of the Albert Nile at the Mongalla gauge, 32 kilometres north of Gondokoro._

======+============+=====================================
Gauge.| Discharge | Remarks.
|cubic metres|
| per second.|
------+------------+-------------------------------------
0·0 | 500 |This is a better site than Gondokoro.
·2 | 540 |
·4 | 580 |
·6 | 620 |
·8 | 660 |
------+------------+
1·0 | 700 |
·2 | 780 |
·4 | 860 |
·6 | 940 |
·8 | 1020 |
------+------------+
2·0 | 1100 |
·2 | 1300 |
·4 | 1500 |
·6 | 1700 |
·8 | 1900 |
------+------------+
3·0 | 2100 |
·2 | 2300 |
·4 | 2500 |
·6 | 2700 |
======+============+=====================================

TABLE XXXI.--_Discharge table of the Sobat river at Dulaib Hilla._

======+===========
Gauge.| Discharge
| in m³
|per second.
------+-----------
0·0 | 30
·2 | 58
·4 | 86
·6 | 112
·8 | 142
1·0 | 170
·2 | 218
·4 | 266
·6 | 314
·8 | 362
2·0 | 410
·2 | 500
·4 | 590
·6 | 680
·8 | 790
3·0 | 860
·2 | 950
·4 | 1040
·6 | 1130
·8 | 1220
4·0 | 1310
======+===========

This gauge is in backwater when the north end of the Sudd region is flooded.

TABLE XXXII.--_Discharge Table of the White Nile at Tewfikieh downstream of Sobat junction referred to Tewfikia Gauge._

======+============
Gauge.| Discharge
| in m³
|per second.
------+------------
-1·0 | 150
0·0 | 330
·2 | 376
·4 | 422
·6 | 468
·8 | 514
------+------------
1·0 | 560
·2 | 616
·4 | 672
·6 | 728
·8 | 784
------+------------
2·0 | 840
·2 | 906
·4 | 972
·6 | 1038
·8 | 1104
------+------------
3·0 | 1170
·2 | 1270
·4 | 1370
·6 | 1470
·8 | 1570
------+------------
4·0 | 1670
·2 | 1770
·4 | 1870
·6 | 1970
·8 | 2070
------+------------
5·0 | 2170
======+============

TABLE XXXIII.--_Discharge Table of the White Nile at Duem in Winter and Summer when the Blue Nile is low._

======+===========+===================================================
Gauge.| Discharge | Remarks.
| in m³ |
|per second.|
------+-----------+---------------------------------------------------
0·0 | 330 |This gauge is in backwater when the Blue Nile is
·1 | 354 |high.
·2 | 370 |
·3 | 402 |
·4 | 426 |
·5 | 450 |
------+-----------+
·6 | 480 |
·7 | 515 |
·8 | 555 |
·9 | 600 |
1·0 | 650 |
======+===========+===================================================

This table is only very approximative.

TABLE XXXIV.--_Discharge table of the Blue Nile at Wad Medani._

======+===================
Gauge.| DISCHARGE
| IN M³ PER SECOND
+-------+-----------
| River | River
|rising.| 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|Discharge in m³
| per second. | 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
======+==========

TABLE XXXVII.--_Discharge table for the Assuân, Assiut and Cairo Gauges._

The gauges are in metres and are referred to mean low-water level as zero.

The zero is:
at Assuân R. L. 85·00
at Assiut „ 45·55
at Cairo „ 12·25

=N.B.=--At Assiut R. L. 45·55, according to the reservoir levels, is
R. L. 45·05 according to the 4th Circle levels.

(The discharges are in cubic metres per second.)

This discharge table may be used approximately for any gauge on the Nile north of Assuân with its zero at mean low-water level; adding ·5 to the gauge in Kena Province, and deducting ·5 from the gauge in Minieh and Beni-Suef.

If the river is rising, take the discharge corresponding to the higher gauge; if falling or stationary to the lower one.

======+==========
Gauge.|Discharge.
------+----------
-1·0 | 360
- ·8 | 406
- ·6 | 452
- ·4 | 498
- ·2 | 544
------+----------
0·0 | 590
·2 | 668
·4 | 746
·6 | 824
·8 | 902
------+----------
1·0 | 980
·2 | 1086
·4 | 1192
·6 | 1298
·8 | 1404
------+----------
2·0 | 1510
·2 | 1652
·4 | 1794
·6 | 1936
·8 | 2078
------+----------
3·0 | 2220
·2 | 2408
·4 | 2596
·6 | 2784
·8 | 2972
------+----------
4·0 | 3160
·2 | 3404
·4 | 3648
·6 | 3892
·8 | 4136
------+----------
5·0 | 4380
·2 | 4674
·4 | 4968
·6 | 5262
·8 | 5556
------+----------
6·0 | 5850
·2 | 6150
·4 | 6450
·6 | 6800
·8 | 7200
------+----------
7·0 | 7600
·2 | 8000
·4 | 8400
·6 | 8800
·8 | 9300
------+----------
8·0 | 9800
·2 | 10300
·4 | 10900
·6 | 11500
·8 | 12100
------+----------
9·0 | 12800
·2 | 13600
======+==========

TABLE XXXVIII.

Discharge Table of the Wady Halfa Gauge, for use at Assuân when the Assuân Dam is being regulated on, and consequently the Assuân Gauge no longer represents the normal discharge of the Nile. At this stage of the river it may be assumed that the water travels normally between Wady Halfa and Assuân in 3 or 4 days.

======+============
| Discharge
Gauge.|cubic metres
| per second.
------+------------
0·8 | 370
1·0 | 440
·2 | 516
·4 | 592
·6 | 688
·8 | 804
------+------------
2·0 | 920
·2 | 1048
·4 | 1176
·6 | 1314
·8 | 1462
3·0 | 1610
------+------------
3·2 | 1800
·4 | 1990
·6 | 2180
·8 | 2370
------+------------
4·0 | 2560
·2 | 2802
·4 | 3044
·6 | 3286
·8 | 3528
5·0 | 3770
======+============

TABLE XXXIX.--_Discharge of the Rosetta Branch of the Nile referred to the Delta Barrage north of Cairo._

1890
======+==============
Gauge.| Discharge
|m³ per second.
------+--------------
0·00 | 0
·25 | 50
·50 | 100
·75 | 150
------+--------------
1·00 | 200
·25 | 287
·50 | 375
·75 | 463
------+--------------
2·00 | 550
·25 | 700
·50 | 850
·75 | 1000
------+--------------
3·00 | 1150
·25 | 1312
·50 | 1475
·75 | 1638
------+--------------
4·00 | 1800
·25 | 1975
·50 | 2150
·75 | 2325
------+--------------
5·00 | 2500
·25 | 2700
·50 | 2900
·75 | 3100
------+--------------
6·00 | 3300
·25 | 3525
·50 | 3750
·75 | 3975
------+--------------
7·00 | 4200
·25 | 4450
·50 | 4700
·75 | 4950
------+--------------
8·00 | 5200
·25 | 5475
·50 | 5750
·75 | 6025
------+--------------
9·00 | 6300
======+==============

Zero of the gauge R. L. 10·00 metres above mean sea.

TABLE XL.--_Discharge of the Damietta Branch of the Nile referred to the Delta Barrage north of Cairo._

1890
======+=========
Gauge.|Discharge
| m³ per
| second.
------+---------
0·00 | 0
·25 | 20
·50 | 40
·75 | 60
------+-----------
1·00 | 80
·25 | 110
·50 | 140
·75 | 170
------+-----------
2·00 | 200
·25 | 262
·50 | 325
·75 | 388
------+-----------
3·00 | 450
·25 | 537
·50 | 625
·75 | 712
------+-----------
4·00 | 800
·25 | 925
·50 | 1050
·75 | 1175
------+-----------
5·00 | 1300
·25 | 1450
·50 | 1600
·75 | 1750
------+-----------
6·00 | 1900
·25 | 2075
·50 | 2250
·75 | 2425
------+-----------
7·00 | 2600
·25 | 2800
·50 | 3000
·75 | 3200
------+-----------
8·00 | 3400
·25 | 3625
·50 | 3850
·75 | 4075
------+-----------
9·00 | 4300
------+-----------

NOTE.--Zero of the gauge R. L. 10·00 metres above mean sea.

Appendix K.

TABLES GIVING DETAILED INFORMATION ABOUT THE NILE BETWEEN ASSUÂN AND CAIRO.

TABLE XLI.--_Date of Heights of Minimum gauges in summer and Maximum gauges in flood at Assuan._

=====+===================+===================
Year.| MINIMUM SUMMER | MAXIMUM FLOOD
+------------+------+------------+------
| Date. |Gauge.| Date. |Gauge.
-----+------------+------+------------+------
1873| 5 June | -0·37| 1 September| 7·66
1874|30 May | -0·64| 6 September| 8·97
1875|23 May | -0·17|11 September| 8·36
1876|15 June | +0·13| 7 September| 8·68
1877|27 May | +0·10|20 August | 6·40
1878|23 June | -0·71| 1 October | 9·15
1879|23 May | +1·88|13 September| 8·59
1880| 9 June | +0·82| 4 September| 7·82
1881|14 May | +0·00| 4 September| 8·14
1882|23 June | -0·55|28 August | 8·00
1883|22 June | +0·04|17 September| 8·18
1884|27 May | +0·37| 1 September| 7·73
1885|21 June | -0·44|28 August | 8·05
1886| 3 June | -0·06|22 September| 8·04
1887| 8 May | -0·03| 1 September| 8·81
1888| 8 June | -0·08|24 August | 7·08
1889|24 June | -0·60| 2 September| 8·36
1890| 8 June | -0·60| 2 September| 8·72
1891|19 May | -0·21|27 September| 7·84
1892|18 June | -0·64|20 September| 8·88
1893|18 June | +0·35|14 September| 7·75
1894|16 June | +0·06|18 September| 8·61
1895|23 June | +0·78|10 September| 8·68
1896|13 June | +0·49| 3 September| 8·63
1897|31 May | +0·62| 1 September| 7·80
1898|23 June | -0·25|29 August | 8·63
1899| 1 June | +0·15| 4 September| 6·67
1900|15 May | -0·93|19 August | 7·91
1901|10 May | -0·46| 6 September| 7·82
1902|12 May | -0·48|17 September| 6·72
1903|16 April | -0·68|27 August | 7·93
1904| 5 June | -0·20|13 August | 6·97
=====+============+======+============+======

Zero is R. L. 85·00 metres or mean low water level.

TABLE XLII.--_Table giving areas of cross sections of the Nile, from Assuân to Cairo._

================+=======+=============================================
Locality. | Length| MEAN AREA IN SQUARE METRES
| in +-----+-------+-------+-------+-------+-------
| kilo- |Below| Below | Below | Below | Below | Below
|metres.|zero.| 6 | 7 | 8 | 8.5 | 9
| | |metres.|metres.|metres.|metres.|metres.
----------------+-------+-----+-------+-------+-------+-------+-------
Assuân to Ramâdi| 81 | 1024| 4930 | 5808 | 6754 | 7337 | 7993
Ramâdi to Esna | 76 | 674| 4554 | 5461 | 6398 | 6966 | 7695
Esna to Kena | 115 | 852| 4476 | 5336 | 6221 | 6726 | 7363
Kena to Sohâg | 158 | 973| 4718 | 5600 | 6535 | 7121 | 7873
Sohâg to Assiout| 98 | 1037| 5220 | 6305 | 7705 | 8683 | 9749
Assiout to Minia| 138 | 899| 5149 | 6205 | 7783 | 8845 | 9937
Minia to Beni- | | | | | | |
Suêf | 117 | 915| 5035 | 6007 | 7315 | 8196 | 9140
Beni-Suêf to | | | | | | |
Koshesha | 34 | 665| 5040 | 6080 | 7532 | 8379 | 9247
Koshesha to | | | | | | |
Cairo | 81 | 1031| 5364 | 6388 | 7813 | 8648 | 9495
Cairo to the | | | | | | |
Barrage | 24 | 1402| 5414 | 6628 | 8346 | 9258 | 10184
----------------+-------+-----+-------+-------+-------+-------+-------
Assuân to | | | | | | |
Assiout | 528 | 920| 4760 | 5680 | 6690 | 7310 | 8080
Assiout to | | | | | | |
Koshesha | 289 | 870| 5080 | 6100 | 7550 | 8510 | 9520
Koshesha to | | | | | | |
Cairo | 81 | 1030| 5360 | 6380 | 7810 | 8640 | 9490
----------------+-------+-----+-------+-------+-------+-------+-------
Assuân to Cairo | 898 | 910| 4930 | 5890 | 7080 | 7830 | 8690
================+=======+=====+=======+=======+=======+=======+=======

TABLE XLIII.--_Table of the cubic contents of the trough of the Nile from Assuân to Cairo in millions of cubic metres._

=====================+========+==============================+
Locality. | Length | CONTENTS IN MILLIONS |
|in kilo-| OF CUBIC METRES |
|metres. +-----+----+----+----+----+----+
| |Below|From| 6.0| 7.0| 8.0| 8.5|
| |zero.|zero| to | to | to | to |
| | | to | 7.0| 8.0| 8.5| 9.0|
| | |6.0 | | | | |
---------------------+--------+-----+----+----+----+----+----+
| | | | | | | |
Assuân to Ramadi | 81 | 83| 316| 711| 77| 47| 53|
Ramadi to Esna | 76 | 51| 295| 69| 71| 43| 56|
Esna to Kena | 115 | 98| 417| 99| 102| 58| 73|
Kena to Sohag | 128 | 154| 592| 139| 148| 83| 119|
Sohag to Assiout | 98 | 102| 410| 106| 137| 96| 104|
Assiout to Minieh | 138 | 124| 586| 146| 218| 147| 151|
Minieh to Beni Suêf | 117 | 107| 482| 114| 153| 103| 110|
Beni Suêf to Kushesha| 34 | 23| 149| 35| 49| 29| 29|
Kushesha to Cairo | 81 | 84| 351| 83| 115| 68| 69|
Cairo to the Barrage | 28 | 34| 96| 29| 41| 22| 22|
+--------+-----+----+----+----+----+----+
Assuân to Assiout | 528 | 487|2030| 484| 534| 327| 405|
Assiout to Kushesha | 289 | 254|1217| 295| 420| 278| 291|
Kushesha to Cairo | 81 | 84| 351| 83| 115| 68| 69|
+--------+-----+----+----+----+----+----+
Assuân to Cairo | 898 | 825|3598| 862|1069| 673| 765|
=====================+========+=====+====+====+====+====+====+

=====================+========+==============================
Locality. | Length | CONTENTS IN MILLIONS
|in kilo-| OF CUBIC METRES
|metres. +-----+-----+-----+-----+-----
| |Below|Below|Below|Below|Below
| | 6.0 | 7.0 | 8.0 | 8.5 | 9.0
| | | | | |
| | | | |
---------------------+--------+-----+-----+-----+-----+-----
| | | | | |
Assuân to Ramadi | 81 | 399| 470| 547| 594| 647
Ramadi to Esna | 76 | 346| 415| 486| 529| 585
Esna to Kena | 115 | 514| 614| 715| 773| 847
Kena to Sohag | 128 | 745| 885| 1032| 1125| 1244
Sohag to Assiout | 98 | 512| 618| 755| 851| 955
Assiout to Minieh | 138 | 710| 856| 1074| 1220| 1371
Minieh to Beni Suêf | 117 | 589| 703| 856| 859| 1069
Beni Suêf to Kushesha| 34 | 171| 207| 256| 285| 314
Kushesha to Cairo | 81 | 434| 517| 633| 700| 769
Cairo to the Barrage | 28 | 130| 159| 200| 222| 244
+--------+-----+-----+-----+-----+-----
Assuân to Assiout | 528 | 2517| 3001| 3535| 3862| 4267
Assiout to Kushesha | 289 | 1471| 1766| 2186| 2464| 2755
Kushesha to Cairo | 81 | 435| 518| 633| 701| 770
+--------+-----+-----+-----+-----+-----
Assuân to Cairo | 898 | 4423| 5285| 6354| 7027| 7792
=====================+========+=====+=====+=====+=====+=====

TABLE XLIV.--_Widths of water surface from Assuân to Cairo._

=========+=========+============================
From. | To. |MEAN WIDTH OF WATER SURFACE
| +---+----+----+----+----+----
| | 0 | 6·0| 7·0| 8·0| 8·5| 9·0
---------+---------+---+----+----+----+----+----
Assuân |Ramadi |400| 840| 880|1030|1270|1400
Ramadi |Esna |340| 850| 890|1030|1260|1620
Esna |Kena |350| 820| 850| 940|1120|1400
Kena |Sohag |380| 870| 890|1000|1300|1560
Sohag |Assiout |400|1000|1170|1720|2080|2170
Assiout |Minieh |390| 970|1180|1890|2060|2080
Minieh |Beni Suêf|490| 960|1300|1550|1800|1840
Beni Suêf|Kushesha |500|1000|1390|1690|1720|1730
Kushesha |Cairo |450| 960|1100|1570|1700|1700
Cairo |Barrage |440| 940|1460|1840|1860|1890
---------+---------+---+----+----+----+----+-----
Assuân |Assiout |370| 880| 940|1140|1410|1630
Assiout |Kushesha |460| 980|1290|1710|1860|1880
Kushesha |Cairo |450| 960|1100|1570|1700|1700
---------+---------+---+----+----+----+----+----
Assuân |Cairo |430| 940|1110|1470|1660|1740
---------+---------+---+----+----+----+----+----

_Area of water surface in millions of square metres._

=========+=========+===+====+====+====+====+====
Assuân |Assiout |200| 470| 500| 600| 740| 860
Assiout |Cairo |130| 280| 370| 490| 540| 540
Assuân |Cairo |400| 840|1000|1320|1490|1560
=========+=========+===+====+====+====+====+====

TABLE XLV.--_Slope of water surface in the Nile. Assuân to Cairo._

============+============+========+========+=======+=======
From. | To. |Distance|Distance| Slope | Slope
| |in kilo-|in kilo-| in | in
| |metres |metres | flood.|summer.
| |down the|down the| |
| |centre |summer | |
| |line of |channel.| |
| |the | | |
| |flood. | | |
------------+------------+--------+--------+-------+-------
Assuân |Silsila | 70 | 72 |¹⁄₁₁₅₀₀|¹⁄₁₂₆₀₀
Silsila |Kasr-es-Saad| 250 | 258 |¹⁄₁₄₈₀₀|¹⁄₁₄₈₀₀
Kasr-es-Saad|Khazindaria | 150 | 159 |¹⁄₁₂₃₀₀|¹⁄₁₃₄₀₀
Khazindaria |Assiout | 60 | 63 |¹⁄₁₁₈₀₀|¹⁄₁₄₅₀₀
Assiout |Beni Mazâr | 180 | 196 |¹⁄₁₁₀₀₀|¹⁄₁₁₈₀₀
Beni Mazâr |Ashmant | 90 | 94 |¹⁄₁₁₀₀₀|¹⁄₁₁₄₀₀
Ashmant |Cairo | 100 | 106 |¹⁄₁₁₆₀₀|¹⁄₁₂₃₀₀
Cairo |Barrage | 23 | 25 |¹⁄₁₀₈₀₀|¹⁄₂₀₀₀₀
------------+------------+--------+--------+-------+-------
Assuân | Cairo | 900 | 948 |¹⁄₁₂₂₀₀|¹⁄₁₃₀₀₀
============+============+========+========+=======+=======

TABLE XLVI.--_Mean low water level of the Nile--Assuân to Cairo._

========+===============+=========+==========+========
Distance| Name of | R. L. | R. L. |Distance
from | Locality. |According|According | from
Assuân | | to | to | Assuân
along | |reservoir|inspectors| along
centre | | levels. | of | summer
of | | | irriga- |Channel.
flood. | | | tion. |
--------+---------------+---------+----------+--------
0 |Assuân | 85·0 | 85·0 | 0
70 |Gebel Silsila | 79·3 | 79·4 | 72
106 |Edfu | 76·7 | 77·0 | ..
157 |Esna | 73·1 | 72·6 | ..
194 |Armant | 70·1 | 69·6 | ..
213 |Luxor | 69·0 | 68·5 | ..
272 |Kena | 65·3 | 64·8 | ..
320 |Kasr-es-Saad | 61·7 | 61·2 | 330
328 |Heu | 61·2 | 60·7 | ..
333 |Naga Hamadi | 61·0 | 60·5 | ..
365 |Abu Shusha | 58·6 | 58·1 | ..
373 |Balyana | 58·3 | 57·8 | ..
390 |Girga | 56·9 | 56·5 | ..
429 |Sohâg | 53·8 | 53·2 | ..
470 |Khazindaria | 49·9 | 49·4 | 489
505 |Aboutig Escape | 47·7 | 47·1 | ..
530 |Assiout[12] | 45·55 | 45·05 | 552
598 |Derut Escape | 39·1 | 38·5 | ..
627 |Roda | 36·3 | 35·7 | ..
666 |Minia | 32·6 | 32·0 | ..
710 |Beni Mazâr | 28·9 | .. | 748
|Beni Suêf[13] | 22·1 | 21·8 | ..
800 |Ashmant | 20·5 | 20·2 | 842
|Kushesha Escape| 18·9 | 18·6 | ..
|El-Ayât | 15·8 | 15·5 | ..
898 |Cairo gauge | 12·10 | 12·25 | ..
900 |Cairo | 12·00 | 12·1 | 948
========+===============+=========+==========+========

[12] Downstream of the Assiout weir.

[13] The Beni Suêf gauge is unreliable in summer as it is on a branch
of the river which is dammed by the villagers.

TABLE XLVII.--_Discharge table of the Upper Egypt canals._

A low Nile flood is 6·4 metres }
A mean Nile flood is 7·5 „ } at Assuân.
A high Nile flood is 8·3 „ }

The discharges of the Upper Egypt canals corresponding to the Assuân gauges are approximately as follows:--

Assuân 6·0 1300
·1 1370
·2 1440
·3 1510
·4 1580--Low Nile flood.
·5 1650
·6 1620
·7 1790
·8 1860
·9 1930
7·0 2000
-----------
·1 2070
·2 2140
·3 2210
·4 2280
·5 2350--Mean Nile flood.
·6 2420
·7 2490
·8 2560
·9 2630
8·0 2700
-----------
·1 2770
·2 2840
·3 2910--High Nile flood.
·4 2980
·5 3050
·6 3120
·7 3190
·8 3260
·9 3330
9·0 3400
=======================================

R. L. of zero in R. L. 85·00 metres.

TABLE XLVIII.--_Canal discharges between Assuan and Assiut._

DISCHARGES OF THE CANALS IN UPPER EGYPT IN 1892.

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The Nile in 1904Chapter V (2)

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