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Addi Abagiè
Addi Abagiè is a reservoir located in the Sa’isi Tsa’ida Imba ''woreda'' of the Tigray Region in Ethiopia. The earthen dam that holds the reservoir was built in 1993. Dam characteristics Dam crest length: 176 metres. Exceptionally, among the many dams in Tigray, this dam was breached around the year 2000, due to high positioning of the spillway and hence overtopping of the dam. Around 2010 the breach was closed and the dam height increased. The dam is now operational. Environment The catchment of the reservoir is 8.77 km² large, with a perimeter of 13 km and a length of 4700 metres. The reservoir suffers from rapid siltation. The lithology of the catchment is Enticho Sandstone The Enticho Sandstone is a geological formation in north Ethiopia. It forms the lowermost sedimentary rock formation in the region and lies directly on the basement rocks. Enticho Sandstone consists of arenite that is rich in quartz. The formation ... and Precambrian metamorphic roc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethiopia
Ethiopia, , om, Itiyoophiyaa, so, Itoobiya, ti, ኢትዮጵያ, Ítiyop'iya, aa, Itiyoppiya officially the Federal Democratic Republic of Ethiopia, is a landlocked country in the Horn of Africa. It shares borders with Eritrea to the north, Djibouti to the northeast, Somalia to the east and northeast, Kenya to the south, South Sudan to the west, and Sudan to the northwest. Ethiopia has a total area of . As of 2022, it is home to around 113.5 million inhabitants, making it the 13th-most populous country in the world and the 2nd-most populous in Africa after Nigeria. The national capital and largest city, Addis Ababa, lies several kilometres west of the East African Rift that splits the country into the African and Somali tectonic plates. Anatomically modern humans emerged from modern-day Ethiopia and set out to the Near East and elsewhere in the Middle Paleolithic period. Southwestern Ethiopia has been proposed as a possible homeland of the Afroasiatic langua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freweyni
Freweyni (also known as Sinkata) is a town in northern Ethiopia. Located 80 kilometers north of Mekele in the Misraqawi Zone of the Tigray Region (or ''kilil'') of Ethiopia, this town has a latitude and longitude of with an elevation of 2480 meters above sea level and is located along Ethiopian Highway 2. Naming During the Italo-Abyssinian War, a large group of Ethiopian soldiers, marching to the north to fight the Italians, arrived almost starving at the town of Freweyni. In honour of this march, the town was renamed to ''Sinkata''. In 1991, after the EPRDF The Ethiopian People's Revolutionary Democratic Front (EPRDF; am, የኢትዮጵያ ሕዝቦች አብዮታዊ ዲሞክራሲያዊ ግንባር, translit=Ye’Ītiyop’iya Ḥizibochi Ābiyotawī Dīmokirasīyawī Ginibari) was an eth ... seized power, new administrative divisions came into place. South of the town, a suburban tabia was created. To distinguish the town tabia from the surrounding tabia, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reservoir
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an embayment within it, through excavation, or building any number of retaining walls or levees. In other contexts, "reservoirs" may refer to storage spaces for various fluids; they may hold liquids or gasses, including hydrocarbons. ''Tank reservoirs'' store these in ground-level, elevated, or buried tanks. Tank reservoirs for water are also called cisterns. Most underground reservoirs are used to store liquids, principally either water or petroleum. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam A dam is a barrier that stops or restricts the flow of surface water or underground streams ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saesi Tsaedaemba
Saesi Tsaedaemba (; also transliterated as Saʿsi Ṣaʿda ʾƎmba) is one of the Districts of Ethiopia, or ''woredas'', in the Tigray Region of Ethiopia. Located in the Misraqawi Zone at the eastern edge of the Ethiopian highlands, Saesi Tsaedaemba is bordered on the south by Kilte Awulaelo, on the southwest by Hawzen, on the west by Ganta Afeshum, on the northwest by Gulomahda, on the north by Irob, on the east by the Afar Region, and on the southeast by Atsbi Wenberta. Towns in Saesi Tsaedaemba include Edaga Hamus and Freweyni also known as Sinkata) where the woreda office is located . Overview There are several local monolithic churches in this woreda. These include Adi Chewa Arbuta (near Freweyni), and the cluster of Petros and Paulos Melehayzenghi, Mikael Melehayzenghi and Medhane Alem Adi Kasho (near the village of Teka Tesfai). Near Edaga Hamus not only can one find the monolithic church of Gebriel Tsilalmao, but also nearby is a stelae similar to those found in A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tigray Region
The Tigray Region, officially the Tigray National Regional State, is the northernmost regional state in Ethiopia. The Tigray Region is the homeland of the Tigrayan, Irob, and Kunama people. Its capital and largest city is Mekelle. Tigray is the fifth-largest by area, the fifth-most populous, and the fifth-most densely populated of the 11 regional states. Tigray's official language is Tigrinya, similar to that spoken in Eritrea just to the North. The estimated population as of 2019 is 5,443,000. The majority of the population (c. 80%) are farmers, contributing 46% to the regional gross domestic product (2009). The highlands have the highest population density, especially in eastern and central Tigray. The much less densely populated lowlands comprise 48% of Tigray's area. Like many parts of Africa, Tigray is far from a religious monolith. Despite the historical identification of Ethiopia with Orthodox Christianity, the presence of Islam in Ethiopia is as old as the religion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthen Dam
An embankment dam is a large artificial dam. It is typically created by the placement and compaction of a complex semi-plastic mound of various compositions of soil or rock. It has a semi-pervious waterproof natural covering for its surface and a dense, impervious core. This makes the dam impervious to surface or seepage erosion. Such a dam is composed of fragmented independent material particles. The friction and interaction of particles binds the particles together into a stable mass rather than by the use of a cementing substance. Types Embankment dams come in two types: the earth-filled dam (also called an earthen dam or terrain dam) made of compacted earth, and the rock-filled dam. A cross-section of an embankment dam shows a shape like a bank, or hill. Most have a central section or core composed of an impermeable material to stop water from seeping through the dam. The core can be of clay, concrete, or asphalt concrete. This type of dam is a good choice for sites wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catchment
A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, the ''drainage divide'', made up of a succession of elevated features, such as ridges and hills. A basin may consist of smaller basins that merge at river confluences, forming a hierarchical pattern. Other terms for a drainage basin are catchment area, catchment basin, drainage area, river basin, water basin, and impluvium. In North America, they are commonly called a watershed, though in other English-speaking places, "watershed" is used only in its original sense, that of a drainage divide. In a closed drainage basin, or endorheic basin, the water converges to a single point inside the basin, known as a sink, which may be a permanent lake, a dry lake, or a point where surface water is lost underground. Drainage basins are similar but no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siltation
Siltation, is water pollution caused by particulate terrestrial clastic material, with a particle size dominated by silt or clay. It refers both to the increased concentration of suspended sediments and to the increased accumulation (temporary or permanent) of fine sediments on bottoms where they are undesirable. Siltation is most often caused by soil erosion or sediment spill. It is sometimes referred to by the ambiguous term "sediment pollution", which can also refer to a chemical contamination of sediments accumulated on the bottom, or to pollutants bound to sediment particles. Although "siltation" is not perfectly stringent, since it also includes particle sizes other than silt, it is preferred for its lack of ambiguity. Causes The origin of the increased sediment transport into an area may be erosion on land or activities in the water. In rural areas, the erosion source is typically soil degradation by intensive or inadequate agricultural practices, leading to soil eros ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enticho Sandstone
The Enticho Sandstone is a geological formation in north Ethiopia. It forms the lowermost sedimentary rock formation in the region and lies directly on the basement rocks. Enticho Sandstone consists of arenite that is rich in quartz. The formation has a maximum thickness of 200 metres. Locally, its upper part is coeval with the Edaga Arbi Glacials. The Enticho Sandstone has been deposited during the Ordovician (485–443 million years), as evidenced by impressions of organisms. Description Name and definition The name was coined by geologists D.B. Dow and colleagues. So far the nomenclature has not been proposed for recognition to the International Commission on Stratigraphy. Geographical extent Enticho Sandstone outcrops in central-southern Eritrea and in northeast Tigray in Ethiopia. Stratigraphic context Northern Ethiopia has experienced glaciations during the Early Palaeozoic (Late Ordovician; circa 445 million years ago), as well as in the Late Palaeozoic (Carbon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reservoirs In Ethiopia
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an embayment within it, through excavation, or building any number of retaining walls or levees. In other contexts, "reservoirs" may refer to storage spaces for various fluids; they may hold liquids or gasses, including hydrocarbons. ''Tank reservoirs'' store these in ground-level, elevated, or buried tanks. Tank reservoirs for water are also called cisterns. Most underground reservoirs are used to store liquids, principally either water or petroleum. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam constructed across a valley, and rely on the natural topography to provide most of the basin of the re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1993 Establishments In Ethiopia
File:1993 Events Collage.png, From left, clockwise: The Oslo I Accord is signed in an attempt to resolve the Israeli–Palestinian conflict; The White House (Moscow), Russian White House is shelled during the 1993 Russian constitutional crisis; Czechoslovakia is peacefully Dissolution of Czechoslovakia, dissolved into the Czech Republic and Slovakia; In the United States, the ATF Waco siege, besieges a compound belonging to David Koresh and the Branch Davidians in a search for illegal weapons, which ends in the building being set alight and killing most inside; Eritrea gains independence; A major 1993 Storm of the Century, snow storm passes over the United States and Canada, leading to over 300 fatalities; Drug lord and narcoterrorism, narcoterrorist Pablo Escobar is killed by Military Forces of Colombia, Colombian special forces; Ramzi Yousef and other Islamic terrorism, Islamic terrorists 1993 World Trade Center bombing, detonate a truck bomb in the subterranean garage of List of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_-_Ethiopia_(8713311209).jpg "Click for more on -> Freweyni")
