Hydrological and Meteorological Drought Monitoring and Trend Analysis in Abbay River Basin, Ethiopia

Table 4

Severe and extreme drought years in the Abbay river basin during 1973–2014 in SPI12.

Station	Drought year	Magnitude	Frequency (%)	Drought category
Bahir Dar	1981	−2.77	2.44	Extreme
	2008	−1.89	2.44	Severe
Chagni	1985	−1.94	7.32	Severe
	1994	−1.51		Severe
	2008	−1.82		Severe
	2010	−2.76	2.44	Extreme
Dangila	1991	−2.57	4.88	Extreme
	1994	−2.23		Extreme
	2001	−1.73	2.44	Severe
Debre Tabor	1975	−2.22	4.88	Extreme
	1984	−2.03		Extreme
	2001	−1.54	2.44	Severe
Gondar	1981	−2.10	2.44	Extreme
Gundewoin	1985	−1.98	2.44	Severe
	1986	−2.2	4.88	Extreme
	1991	−3.12		Extreme
Makisegnit	1989	−1.74	4.88	Severe
	1991	−2.37	2.44	Extreme
	1993	−1.51		Severe
Assosa	1995	−2.72	3.23	Extreme
Debre Berhan	1986	−1.56	6.42	Severe
	1994	−2.64	3.23	Extreme
Deneba	2001	−2.88	3.23	Extreme
	2014	−1.66	3.23	Severe
Fiche	2001	−1.62	3.23	Severe
	2014	−2.32	3.23	Extreme
Mehalmeda	1996	−1.94	3.23	Severe
	2014	−2.46	3.23	Extreme
Nekemt	1985	−1.76	3.23	Severe
	1987	−2.29	3.23	Extreme