Table 6 Evaluation of k m and PMP for Addis Ababa
1964-2010 | 1964-2049 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
t | X n | σn | XM | km WMO | PMP WMO | km | PMP | X n | σn | XM | km WMO | PMP WMO | km | PMP |
(min) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | ||||
10 | 18.1 | 6.3 | 31.8 | 10.9 | 87.5 | 2.3 | 32.7 | 16.0 | 6.7 | 31.8 | 11.8 | 95.0 | 2.3 | 31.5 |
30 | 30.4 | 9.7 | 53.3 | 9.6 | 123.8 | 2.5 | 55.0 | 25.4 | 10.3 | 53.3 | 10.8 | 135.9 | 2.7 | 53.2 |
60 | 36.4 | 11.3 | 63.3 | 12.0 | 171.7 | 2.6 | 65.4 | 31.0 | 11.8 | 63.3 | 13.0 | 183.9 | 2.7 | 62.8 |
180 | 38.2 | 12.3 | 70.7 | 13.3 | 201.5 | 2.9 | 73.9 | 34.2 | 12.3 | 70.7 | 13.9 | 204.9 | 2.9 | 69.9 |
360 | 43.7 | 14.2 | 83.7 | 15.4 | 262.1 | 3.1 | 88.2 | 40.5 | 13.3 | 83.7 | 15.7 | 249.2 | 3.2 | 82.7 |
720 | 50.0 | 16.5 | 99.2 | 15.9 | 312.1 | 3.4 | 105.4 | 47.4 | 15.3 | 99.2 | 16.1 | 292.5 | 3.3 | 97.6 |
1440 | 52.5 | 18.1 | 110.0 | 17.6 | 370.5 | 3.6 | 118.4 | 54.4 | 20.0 | 120.3 | 17.5 | 404.2 | 3.2 | 117.5 |