Geoscience Reference
In-Depth Information
SPI METHOD
8
7
6
5
y = 0.0561x - 104.08
4
3
2
1
0
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
YEARS
Fig. 8.
SPI method against time for Masindi (1950-1960).
SPI METHOD
10
9
8
7
6
5
y = -0.1862x + 369.75
4
3
2
1
0
1950
1951 1952
1953 1954
1955 1956
1957 1958
1959 1960
YEARS
Fig. 9.
SPI method against time for Rakai (1950-1960).
procedures of goodness of fit based on the graphical and KS method
carried out on drought volumes.
(3) Comparison of the two methods used in the drought analysis shows that
the SPI method is easier than the drought volumes method because it
involves less parameters than the latter. However, the droughts volume
method gives a more detailed analysis than the SPI method. The two
methods can be related by Eqs. (9) and (10). The study can be extended
to other regions of Uganda. The relationship between the two methods
