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The Nile in 1904

Chapter 79: Appendix F.
By Sir William Willcocks
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Science - Earth/Agricultural/Farming

About This Book

A technical survey of the Nile and its basin that maps the river's course, slopes, velocities, tributaries, and catchment areas, and analyzes seasonal discharges and climate. It reviews major lakes and channels—Victoria, Albert, the White, Blue and Atbara systems—and the Sudd and branch streams, with measured sections, gauge data, and maps. Practical chapters discuss soil, basin and perennial irrigation, flood behavior and protection, and proposals for dams, reservoirs and inter‑basin works to secure perennial supply and flood control. A final contribution treats Egypt's oases and regional geology, detailing rock formations, stratigraphy, and economically useful materials.

Appendix F.

Table XIII.—Observed discharges of the Victoria Nile referred to the Jinja gauge on Lake Victoria.

1903

Date of
Discharge.		 Locality
where taken.		 Gauge at Jinja Discharge
in metres³
per
second.
Day of
discharge.		 10 days
before
discharge.		 15 days
before
discharge.
22 January Ripon Falls ·51 .. .. 548
20 March Below the Murchison Falls .. ·66 ·70 577

Table XIV.—Observed discharges of the Albert Nile at Wadelai referred to the Wadelai gauge.

1903

Date of
Discharge.		 Gauge. Discharge
in metres³
per
second.		 Remarks.
22 March ·52 646  

Table XV.—Observed discharges of the Albert Nile referred to the Mongalla gauge.

1903
Locality. Kilo-
metres
from
Gondo-
koro.		 Date. Mongalla gauge (32 kilom. north of Gondokoro) Discharge
m³
per
second.
5
days
before.		 4
days
before.		 3
days
before.		 2
days
before.		 1
day
before.		 day
of
dis-
charge.		 1
day
after.
Gondokoro 0 1 April .. .. .. .. .. 0·83 0·83 [9]693
  ..  9 September 2·73 2·85 2·90 3·02 3·16 3·14 3·08 [10]1985
Mongalla 32 14 September 3·14 3·08 2·90 2·84 2·82 2·82 2·82 2046
Derwish Dem 156 16 September 2·90 2·84 2·82 2·82 2·82 2·84 2·92 888
North of Gaba-Shamba 415 18 September 2·82 2·82 2·82 2·84 2·92 3·06 3·12 532
Hillet Nur 538  1 September 2·52 2·52 ? ? ? 2·52 2·45 375
Hillet Nur 542 13 April 0·87 0·89 0·90 0·90 0·87 0·88 0·88 331
South of Lake No 741 14 April 0·89 0·90 0·90 0·87 0·88 0·88 0·89 285
South of Lake No 742 31 August 2·49 2·52 2·52 ? ? ? 2·52 318
1904
Gondokoro .. 14 May 1·89 1·89 1·96 2·03 2·10 2·03 2·07 1138
Bôr 165 12 May 1·89 1·89 1·89 1·89 1·96 2·03 2·10 813
South of Lake No 742 22 May 2·03 2·03 2·03 2·07 2·07 2·17 2·17 302

 [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 of
discharge.		 Gauge Discharges
m³
per
second.		 Remarks.
Day. 1
day
after.		 2
days
after.		 3
days
after.
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 of
discharge.		 Gauge Discharge
m³
per
second.		 Remarks.
1
day
before.		 Day. 1
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 of
discharge.		 Gauge Discharge
m³
per
second.		  
1
day
before.		 day. 1
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
Gauge
-
Gauge.		 Khartoum
Gauges		 Dis-
charge
cubic
metres
per
second.
3
days
before.		 2
days
before.		 day
before.		 day
of
dis-
charge.
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 of
Discharge.		 WAD MEDANI GAUGES Discharge
m³ per
second.		 Khartoum
gauges.		 Remarks.
2
days
before.		 1
day
before.		 Date
of
dis-
charge.
 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 0̅·12
17 „ 1·08 1·04 1·04 154 0̅·16
 1 May 0·98 0·98 0·96 121 0̅·16
 8 „ 0·88 0·88 0·90 Nil 0̅·23
15 „ 0·88 0·92 0·98 „ 0̅·26
22 „ 1·40 1·66 1·70 „ 0̅·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
Discharge.		 Gauges Dis-
charge
m³ per
second.		 Remarks
5
days
before.		 4
days
before.		 3
days
before.		 2
days
before.		 1
day
before.		 Date
of
dis-
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.