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Mizane Birhan
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Mizane Birhan
Mizane Birhan is a tabia or municipality in the Dogu'a Tembien district of Tigray Region, Ethiopia. The tabia centre is in Ma'idi village, located approximately 13 km to the southeast of the woreda town Hagere Selam.
The tabia is astride the Imba Dogu'a ridge, between valleys of Rubaksa and Ruba Bich'i Rivers. The highest peak is Imba Dogu'a (2620 m a.s.l.) and the lowest place at east is along Ruba Bich'i (1960 m a.s.l.) and at west 2020 m, down from Addi Welo.
From the higher to the lower locations, the following geological formations are present:
The main geomorphic unit is the gently undulating Agula shale plateau with dolerite. Corresponding soil types are:
The rainfall pattern shows a very high seasonality with 70 to 80% of the annual rain falling in July and August. Mean temperature in Ma'idi is 19.8 °C, oscillating between average daily minimum of 11.1 °C and maximum of 28 °C. The contrasts between day and night air temperatures are much larger than seasonal contrasts.
The Giba River is the most important river in the surroundings of the tabia. It flows towards Tekezze River and further on to the Nile. The drainage network of the tabia is organised as follows:
Whereas they are (nearly) dry during most of the year, during the main rainy season, these rivers carry high runoff discharges, sometimes in the form of flash floods. Especially at the beginning of the rainy season, they are brown-coloured, evidencing high soil erosion rates.
As there are no permanent rivers, the presence of springs is of utmost importance for the local people. The main springs in the tabia are:
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Mizane Birhan
Mizane Birhan is a tabia or municipality in the Dogu'a Tembien district of Tigray Region, Ethiopia. The tabia centre is in Ma'idi village, located approximately 13 km to the southeast of the woreda town Hagere Selam.
The tabia is astride the Imba Dogu'a ridge, between valleys of Rubaksa and Ruba Bich'i Rivers. The highest peak is Imba Dogu'a (2620 m a.s.l.) and the lowest place at east is along Ruba Bich'i (1960 m a.s.l.) and at west 2020 m, down from Addi Welo.
From the higher to the lower locations, the following geological formations are present:
The main geomorphic unit is the gently undulating Agula shale plateau with dolerite. Corresponding soil types are:
The rainfall pattern shows a very high seasonality with 70 to 80% of the annual rain falling in July and August. Mean temperature in Ma'idi is 19.8 °C, oscillating between average daily minimum of 11.1 °C and maximum of 28 °C. The contrasts between day and night air temperatures are much larger than seasonal contrasts.
The Giba River is the most important river in the surroundings of the tabia. It flows towards Tekezze River and further on to the Nile. The drainage network of the tabia is organised as follows:
Whereas they are (nearly) dry during most of the year, during the main rainy season, these rivers carry high runoff discharges, sometimes in the form of flash floods. Especially at the beginning of the rainy season, they are brown-coloured, evidencing high soil erosion rates.
As there are no permanent rivers, the presence of springs is of utmost importance for the local people. The main springs in the tabia are:
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