Rainfall Variability, Drought Characterization, and Efficacy of Rainfall Data Reconstruction: Case of Eastern Kenya
Table 4
(a) Probability of rainfall exceedance and return-periods for the LRs and SRs in the study area. (b) Probability of average seasonal months’ rainfall exceedance and return-periods for the LRs and SRs in Mbeere subcounty.
(a)
Exceedance (%)
Return (P)
Magnitude of anticipated rainfall (mm)
Embu
Machang’a
Kiritiri
Kindaruma
Kiambere
LR
SR
LR
SR
LR
SR
LR
SR
LR
SR
10
10
994.7
628.8
449.8
763
465.8
831.7
507.8
773.7
541.8
907.7
20
5
788.9
541.2
381.4
613.1
398.2
625.9
420.2
617.9
454.2
701.9
30
3.33
667.5
485.7
338.7
523.7
372.7
584.5
364.7
516.5
398.7
580.5
40
2.5
578.8
442.9
306
457.7
379.9
515.8
321.9
427.8
355.9
491.8
50
2
506.8
406.3
278.2
403.6
343.3
443.8
285.3
385.8
319.3
419.8
60
1.67
443.5
372.8
253.2
356
269.8
380.5
251.8
322.5
285.8
356.5
70
1.43
384.5
339.9
222.8
311.1
276.9
321.5
218.9
263.5
252.9
297.5
80
1.25
325.4
305.0
203.1
265.7
142
262.4
184
204.4
218
238.4
90
1.11
258.1
262.5
172.2
213.5
199.5
195.1
141.5
137.1
175.5
171.1
Exceedance (%): probability of exceedance (%) and Return (P): return period (years).
(b)
Exceedance (%)
Return (P)
Seasonal months
March
April
May
October
November
December
20
5
164
419
253
258
331
117
40
2.5
118
330
181
179
264
74
50
2
100
295
154
149
237
59
60
1.67
84
262
129
122
212
45
80
1.25
50
193
79
70
159
18
Exceedance (%): probability of exceedance (%) and Return (P): return period (years).
