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Lake Iro
Iro Lake (french: Lac Iro) is a cyclically occurring lake in the Moyen-Chari Region in southeastern Chad. It is fed in the summer and autumn months from the eastern arm of the Bahr Salamat, which forks seven kilometers southwest of the lake. The lake is about 100 kilometers north of the border with the Central African Republic. It is nearly circular, 13 kilometers long and 11 kilometers wide. During the dry season it can completely run dry. It has been suspected that the depression is the remains of an impact crater An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact crater ....W. Reimold & C. Koeberl (2014)Impact structures in Africa: A review Journal of African Earth Sciences, Volume 93, May 2014, Pages 57–175. See also * Bosumtwi Lake – a confirmed impact crater in Africa References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sentinel-2
Sentinel-2 is an Earth observation mission from the Copernicus Programme that systematically acquires optical imagery at high spatial resolution (10 m to 60 m) over land and coastal waters. The mission is currently a constellation with two satellites, Sentinel-2A and Sentinel-2B; a third satellite, Sentinel-2C, is currently undergoing testing in preparation for launch in 2024. The mission supports a broad range of services and applications such as agricultural monitoring, emergencies management, land cover classification or water quality. Sentinel-2 has been developed and is being operated by the European Space Agency, and the satellites were manufactured by a consortium led by Airbus Defence and Space in Friedrichshafen. Overview The Sentinel-2 mission has the following key characteristics: * Multi-spectral data with 13 bands in the visible, near infrared, and short wave infrared part of the spectrum * Systematic global coverage of land surfaces from 56° S to 84°&nb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moyen-Chari Region
Moyen-Chari ( ar, شاري الأوسط) is one of the 23 regions of Chad, located in the south of the country. Its capital is Sarh. The former prefecture of the same name was larger and included modern Mandoul Region. Geography The region borders Guéra Region to the north, Salamat Region to the east, the Central African Republic to the south, and Mandoul Region, Tandjilé Region and Chari-Baguirmi to the west. The region is largely flat savannah, with parts of the region protected as part of the Manda National Park. Lake Iro, a suspected impact crater, is located in the north-east. Settlements The capital of Moyen-Chari is Sarh, the third largest city in Chad; other major settlements include Alako, Balimba, Baltoubaye, Bohobé, Boum Kebbir, Danamadji, Dindjebo, Djéké Djéké, Korbol, Koumogo, Kounou, Kyabé, Maro, Moussa Foyo, Ngondeye, Roro and Singako Demographics As per the 2009 Chadian census, the region's population was 588,008 inhabitants. The main e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chad
Chad (; ar, تشاد , ; french: Tchad, ), officially the Republic of Chad, '; ) is a landlocked country at the crossroads of North and Central Africa. It is bordered by Libya to the north, Sudan to the east, the Central African Republic to the south, Cameroon to the southwest, Nigeria to the southwest (at Lake Chad), and Niger to the west. Chad has a population of 16 million, of which 1.6 million live in the capital and largest city of N'Djamena. Chad has several regions: a desert zone in the north, an arid Sahelian belt in the centre and a more fertile Sudanian Savanna zone in the south. Lake Chad, after which the country is named, is the second-largest wetland in Africa. Chad's official languages are Arabic and French. It is home to over 200 different ethnic and linguistic groups. Islam (55.1%) and Christianity (41.1%) are the main religions practiced in Chad. Beginning in the 7th millennium BC, human populations moved into the Chadian basin in great numbe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bahr Salamat
Bahr Salamat is a seasonally intermittent river in Chad. It flows southwards, and is a tributary of the Chari River. When the Bahr Salama river is flowing, it runs through the community of Am Timan and also the Bahr Salamat Faunal Reserve of Chad. The Chari River is a tributary of Lake Chad Lake Chad (french: Lac Tchad) is a historically large, shallow, endorheic lake in Central Africa, which has varied in size over the centuries. According to the ''Global Resource Information Database'' of the United Nations Environment Programme, ... See also * Chari River topics References Rivers of Chad Ramsar sites in Chad Chari River {{Chad-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evaporation
Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase. High concentration of the evaporating substance in the surrounding gas significantly slows down evaporation, such as when humidity affects rate of evaporation of water. When the molecules of the liquid collide, they transfer energy to each other based on how they collide. When a molecule near the surface absorbs enough energy to overcome the vapor pressure, it will escape and enter the surrounding air as a gas. When evaporation occurs, the energy removed from the vaporized liquid will reduce the temperature of the liquid, resulting in evaporative cooling. On average, only a fraction of the molecules in a liquid have enough heat energy to escape from the liquid. The evaporation will continue until an equilibrium is reached when the evaporation of the liquid is equal to its condensation. In an enclosed environment, a liquid will evaporate until the surrounding air is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central African Republic
The Central African Republic (CAR; ; , RCA; , or , ) is a landlocked country in Central Africa. It is bordered by Chad to the north, Sudan to the northeast, South Sudan to the southeast, the DR Congo to the south, the Republic of the Congo to the southwest, and Cameroon to the west. The Central African Republic covers a land area of about . , it had an estimated population of around million. , the Central African Republic is the scene of a civil war, ongoing since 2012. Most of the Central African Republic consists of Sudano-Guinean savannas, but the country also includes a Sahelo- Sudanian zone in the north and an equatorial forest zone in the south. Two-thirds of the country is within the Ubangi River basin (which flows into the Congo), while the remaining third lies in the basin of the Chari, which flows into Lake Chad. What is today the Central African Republic has been inhabited for millennia; however, the country's current borders were established by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impact Crater
An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact craters typically have raised rims and floors that are lower in elevation than the surrounding terrain. Lunar impact craters range from microscopic craters on lunar rocks returned by the Apollo Program and small, simple, bowl-shaped depressions in the lunar regolith to large, complex, multi-ringed impact basins. Meteor Crater is a well-known example of a small impact crater on Earth. Impact craters are the dominant geographic features on many solid Solar System objects including the Moon, Mercury, Callisto, Ganymede and most small moons and asteroids. On other planets and moons that experience more active surface geological processes, such as Earth, Venus, Europa, Io and Titan, visible impact craters are less common because they become eroded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bosumtwi Lake
Lake Bosumtwi is the only natural lake in Ghana. It is situated within an ancient impact crater that is about in diameter. It is about south-east of Kumasi, the capital of Ashanti, and is a popular recreational area. There are about 30 villages near the crater lake of Lake Bosumtwi, with a combined population of about 70,000. The most popular amongst the villages where tourists usually settle is Abono. The Ashanti consider Bosumtwi a sacred lake. According to traditional belief, the souls of the dead come here to bid farewell to the goddess Asase Ya. Because of this, it is considered permissible to fish in the lake only from wooden planks. Among the fish species in the lake is the endemic cichlid ''Hemichromis frempongi'', and the near-endemic cichlids ''Tilapia busumana'' and '' T. discolor''. Impact crater The Lake Bosumtwi impact crater is in diameter, slightly larger than the present lake which is approximately across, and is estimated to be 1.07 million years old ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
