ANNEXES
Annexe 1 : Statistical
summary of Annual and monthly precipitation for Tabligbo
|
Tabligbo station
|
Minimum
|
Maximum
|
Median
|
Mean
|
Stdev
|
Variance
|
CV
|
Skewness
|
|
Annual
|
674
|
1341.5
|
1005.1
|
1016.258
|
179.610
|
32259.59
|
0.177
|
-0.165
|
|
Jan
|
0
|
50
|
1.45
|
7.967
|
12.64
|
159.77
|
1.586
|
1.851
|
|
Feb
|
0
|
121.5
|
24.15
|
31.8
|
33.716
|
1136.79
|
1.06
|
1.313
|
|
Mar
|
0.1
|
309.6
|
93.850
|
96.262
|
60.612
|
3673.82
|
0.630
|
1.050
|
|
Apr
|
24.3
|
264.3
|
107.3
|
118.378
|
57.584
|
3315.97
|
0.486
|
0.641
|
|
May
|
45.3
|
325.5
|
142.75
|
152.712
|
59.196
|
3504.16
|
0.388
|
0.514
|
|
Jun
|
44.8
|
288.9
|
165.95
|
159.647
|
56.391
|
3179.93
|
0.353
|
0.015
|
|
Jul
|
4.8
|
209.7
|
79.75
|
89.19
|
52.361
|
2741.71
|
0.587
|
0.526
|
|
Aug
|
2.2
|
213.6
|
46.55
|
53.655
|
44.726
|
2000.44
|
0.834
|
1.562
|
|
Sept
|
0.2
|
291.3
|
109.500
|
120.9
|
69.310
|
57.122
|
35.206
|
33.334
|
|
Oct
|
28
|
313.3
|
135.55
|
130.06
|
57.122
|
3262.92
|
0.439
|
0.701
|
|
Nov
|
0
|
161.4
|
29.950
|
39.980
|
35.206
|
1239.45
|
0.881
|
1.347
|
|
Dec
|
0
|
194.1
|
3.5
|
15.705
|
33.334
|
111.123
|
2.122
|
4.263
|
Annexe 2: Mann-Kendall test
results of annual, monthly and seasonal precipitation
|
Mann Kendall
Statistic (S)
|
p-value (two tailed test)
|
alpha
|
Sen's slope estimate
|
Test Interpretation
|
|
Jan
|
10
|
0.153
|
0.05
|
-0.073
|
Accept H0
|
|
Feb
|
-123
|
0.291
|
0.05
|
-0.560
|
Accept H0
|
|
Mar
|
- 31
|
0.651
|
0.05
|
-0.069
|
Accept H0
|
|
Apr
|
39
|
1.000
|
0.05
|
0.353
|
Accept H0
|
|
May
|
53
|
1.000
|
0.05
|
0.285
|
Accept H0
|
|
Jun
|
114
|
0.291
|
0.05
|
1.134
|
Accept H0
|
|
Jul
|
115
|
1.000
|
0.05
|
0.980
|
Accept H0
|
|
Aug
|
57
|
0.651
|
0.05
|
0.153
|
Accept H0
|
|
sept
|
-20
|
0.451
|
0.05
|
-0.480
|
Accept H0
|
|
Oct
|
122
|
0.175
|
0.05
|
1.307
|
Accept H0
|
|
Nov
|
119
|
0.760
|
0.05
|
0.699
|
Accept H0
|
|
Dec
|
-33
|
0.532
|
0.05
|
-0.191
|
Accept H0
|
|
Annual
|
122
|
0.159
|
0.05
|
3.434
|
Accept H0
|
|
High rainy season
|
-16.
|
0.861
|
0.05
|
-0.063
|
Accept H0
|
|
High dry season
|
119
|
0.169
|
0.05
|
0.703
|
Accept H0
|
|
Small dry season
|
61
|
0.484
|
0.05
|
0.349
|
Accept H0
|
|
Small rainy season
|
52
|
0.552
|
0.05
|
0.468
|
Accept H0
|
Annexe 3 : Statistical
summary of Annual and monthly Flow for Athieme
|
Athieme Station
|
Minimum
|
Maximum
|
Median
|
Mean
|
stdev
|
Variance
|
CV
|
skewness
|
|
Annual
|
19.089
|
262.408
|
102.970
|
114.985
|
58.998
|
3480.749
|
0.513
|
0.725
|
|
Mar
|
0.180
|
132.952
|
20.762
|
40.509
|
43.749
|
1913.998
|
1.080
|
0.662
|
|
Apr
|
0.380
|
136.863
|
21.648
|
369.902
|
39.073
|
1526.688
|
0.979
|
0.560
|
|
May
|
0.790
|
141.390
|
28.752
|
47.229
|
47.705
|
2275.808
|
1.010
|
0.779
|
|
Jun
|
1.928
|
257.758
|
56.581
|
67.245
|
59.815
|
3577.842
|
0.890
|
1.213
|
|
Jul
|
6.094
|
359.385
|
105.551
|
128.895
|
91.771
|
8421.840
|
0.712
|
1.055
|
|
Aug
|
21.945
|
588.352
|
221.125
|
230.096
|
141.150
|
19923.299
|
0.613
|
0.953
|
|
Sept
|
35.190
|
731.677
|
302.805
|
333.442
|
189.934
|
36074.800
|
0.570
|
0.435
|
|
Oct
|
19.369
|
736.705
|
214.869
|
237.667
|
155.241
|
24099.804
|
0.653
|
1.153
|
|
Nov
|
1.589
|
281.567
|
75.072
|
91.686
|
75.570
|
5710.826
|
0.882
|
0.867
|
|
Dec
|
0.966
|
490.532
|
31.336
|
66.880
|
89.258
|
7967.078
|
1.335
|
2.934
|
|
Jan
|
0.429
|
248.383
|
35.203
|
51.203
|
56.458
|
3187.500
|
1.094
|
1.269
|
|
Feb
|
0.389
|
225.486
|
37.751
|
44.683
|
49.629
|
2463.063
|
1.111
|
1.409
|
|
|
