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Table 5 IDF parameters for the three test cities

From: Intensity-Duration-Frequency (IDF) rainfall curves, for data series and climate projection in African cities

Addis Ababa

 

Historical data (1964–2010)

CMCC 8.5 8 km

CMCC 8.5 1 km

CMCC 4.5 8 km

a

25.06

20.95

23.97

20.20

n

0.23

0.23

0.253

0.24

KT = 5

1.28

1.32

1.28

1.34

KT = 10

1.50

1.58

1.51

1.61

KT = 30

1.84

1.97

1.86

2.03

KT = 50

2.00

2.15

2.02

2.22

KT = 100

2.21

2.40

2.23

2.47

KT = 300

2.54

2.78

2.56

2.88

Dar Es Salaam

 

Historical data (1958–2010)

CMCC 8.5 8 km

CMCC 8.5 1 km

CMCC 4.5 8 km

a

36.44

24.97

31.70

26.54

n

0.25

0.29

0.26

0.27

KT = 5

1.23

1.41

1.28

1.37

KT = 10

1.42

1.74

1.50

1.67

KT = 30

1.70

2.24

1.84

2.13

KT = 50

1.83

2.47

2.00

2.34

KT = 100

2.01

2.78

2.21

2.62

KT = 300

2.28

3.26

2.41

3.07

Douala

 

Historical data (1976–2010)

CMCC 8.5 8 km

CMCC 8.5 1 km

CMCC 4.5 8 km

a

85.17

62.70

67.96

62.44

n

0.22

0.24

0.27

0.24

KT = 5

1.23

1.33

1.27

1.34

KT = 10

1.42

1.59

1.49

1.61

KT = 30

1.71

2.00

1.82

2.02

KT = 50

1.84

2.18

1.97

2.21

KT = 100

2.02

2.43

2.18

2.47

KT = 300

2.30

2.82

2.50

2.87

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