Modeling and Assessing Surface Water Potential Using Combined SWAT Model and Spatial Proximity Regionalization Technique for Ungauged Subwatershed of Jewuha Watershed, Awash Basin, Ethiopia
Table 7
Average monthly water balance values of the watershed.
Month
Rain (mm)
SURF Q (mm)
LAT Q (mm)
Water yield (mm)
ET (mm)
PET (mm)
January
36.22
7.67
6.24
30.55
6.63
32.85
February
50.79
11.16
9.1
35.12
8.56
32.45
March
88.23
17.04
14.21
51.92
19.53
40.1
April
95.09
18.43
17.4
63.92
28.35
41.19
May
62.25
11.43
9.46
51.16
35.41
48.99
June
31.31
1.76
3.91
25.94
28.19
40.21
July
200.43
39.7
31.28
89.7
23.45
32.30
August
314.23
93.86
53.63
205.74
23.09
32.51
September
123.34
24.5
28.96
140.13
21.11
38.11
October
39.13
5.42
9.72
87.64
11.44
41.9
November
32.92
5.72
5.63
54.1
7.98
39.07
December
26.62
4.02
5.96
36.47
6.56
33.6
SURF Q is the surface runoff, LAT Q is the later flow in the watershed, ET is evapotranspiration, and PET is potential evapotranspiration.