8 Cumulative Impacts of Climate Change Variability …
179
100
200
300
400
500
600
Rainfall
Linear
(Rainfall)
0
100
200
300
400
500
Months
l
l
a
f
n
i
a
r
y
l
h
t
n
o
M
n
a
e
M
(mm)
MAPE
181.173
MAD
6.706
MSD
63.015
0
Fig. 3 Time series of total rainfall; 1920–2007 at Gusau Aerodrome
0
10
20
30
40
50
60
70
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Monthly Minimum
Temperature for
Monthly Maximum
Temperature for
Fig. 4 Maximum, Minimum and Average Temperature (°C) in Sokoto
The Goronyo dam is classified as large dam in Nigeria and it is multipurpose in
nature. The Goronyo dam was completed in 1984 but commissioned in 1992 and is
to store 942 millioncubic meters for irrigation and development of downstream areas
from Goronyo to Argungu, covering an area of about 200 km
2 . The dam, which is
earth-filled and built across the Rima River on the Sokoto Rima basin, is located
near Keta Village, about 25 km east of the town of Goronyo and 90 km northeast of
Sokoto City; it is the largest dam under the jurisdiction of the Sokoto Rima River
Basin Authority (SRRBDA) (Figs. 2, 3, 4 and 5).
2.4.2 Hydrology of the Goronyo Dam
The Goronyo Dam is located within the Sokoto Rima River Basin, which is essentially
drained by the Sokoto River, a prominent part of the Niger River drainage system.
179
100
200
300
400
500
600
Rainfall
Linear
(Rainfall)
0
100
200
300
400
500
Months
l
l
a
f
n
i
a
r
y
l
h
t
n
o
M
n
a
e
M
(mm)
MAPE
181.173
MAD
6.706
MSD
63.015
0
Fig. 3 Time series of total rainfall; 1920–2007 at Gusau Aerodrome
0
10
20
30
40
50
60
70
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Monthly Minimum
Temperature for
Monthly Maximum
Temperature for
Fig. 4 Maximum, Minimum and Average Temperature (°C) in Sokoto
The Goronyo dam is classified as large dam in Nigeria and it is multipurpose in
nature. The Goronyo dam was completed in 1984 but commissioned in 1992 and is
to store 942 millioncubic meters for irrigation and development of downstream areas
from Goronyo to Argungu, covering an area of about 200 km
2 . The dam, which is
earth-filled and built across the Rima River on the Sokoto Rima basin, is located
near Keta Village, about 25 km east of the town of Goronyo and 90 km northeast of
Sokoto City; it is the largest dam under the jurisdiction of the Sokoto Rima River
Basin Authority (SRRBDA) (Figs. 2, 3, 4 and 5).
2.4.2 Hydrology of the Goronyo Dam
The Goronyo Dam is located within the Sokoto Rima River Basin, which is essentially
drained by the Sokoto River, a prominent part of the Niger River drainage system.