River (Station)

Area

S, km²

Annual rain

P, mm

Regional parameters

(Table 4)

Flood flow index Q₀, m³/s (6)

Frequency peak flow Q_T, m³/s

$\frac{Calculated\left(8\right)}{Observed}$

β

n

λ

10

20

50

100

1000

Mekhazine

Bg. Mekh

1820

1130

0.0025

0.8

0.6

1146

$\frac{2088}{1288}$

$\frac{2501}{2179}$

$\frac{3175}{3156}$

$\frac{3804}{4416}$

$\frac{6931}{11,686}$

Rheraya

(Tahanaout)

225

670

0.0103

0.5

0.9

104

$\frac{255}{150}$

$\frac{334}{223}$

$\frac{478}{345}$

$\frac{626}{460}$

1540

N’Fis

PK89/PK10

848

700

0.0103

0.5

0.9

210

$\frac{517}{525}$

$\frac{670}{725}$

$\frac{969}{1000}$

$\frac{1270}{1250}$

3125

Ourika

(Aghbalou)

503

600

0.0103

0.5

0.9

139

$\frac{341}{490}$

$\frac{447}{730}$

$\frac{639}{1160}$

$\frac{838}{1680}$

2062

K’Sob

(Adamna)

1480

330

0.144

0.25

1

295

$\frac{802}{880}$

$\frac{1084}{1190}$

$\frac{1613}{1620}$

$\frac{2180}{1940}$

5925

Moulouya

Bg. Homadi

51,500

200

0.144

0.25

1

434

$\frac{1179}{1500}$

1594

2372

$\frac{3206}{3000}$

$\frac{8714}{7500}$