Table 1: Geographical locations of six weather stations for the study area.

Station name Latitude (north) Longitude (east) Altitud (meter) Years of observation
Delib 11.96° 39.42° 3276 1984-2018
Gobye 11.94° 39.67° 1633 1984-2017
Hara 11.84° 39.74° 1509 1984-2018
Sanka 11.89° 39.94° 1986 1984-2018
Sirinka 11.75° 39.61° 1861 1984-2018
Woldia 11.83° 39.59° 1894 1984-2018