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Lake Qaraoun
Lake Qaraoun ( / ALA-LC: ''Buḥayrat al-Qara‘ūn'') is an artificial lake or reservoir located in the southern region of the Beqaa Valley, Lebanon. It was created near Qaraoun village in 1959 by building a concrete-faced rockfill dam (the largest dam in Lebanon) in the middle reaches of the Litani River (longest river in Lebanon). The reservoir has been used for hydropower generation (), domestic water supply, and for irrigation of . The annual surface water flow in the Litani River received at Lake Qaraoun is . This flow is used for generating hydroelectric power of 600 GWh at three hydroelectric power stations at Markaba, Awali and Jun with the total installed capacity of . During the dry season, of water is diverted from Markaba power station to meet the needs of the Kassmieh irrigation project. The lake is a habitat for some 20,000 migratory birds which visit it annually. Geography The upper Litani River, where the artificial lake or reservoir has been created with the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beqaa Valley
The Beqaa Valley (, ; Bekaa, Biqâ, Becaa) is a fertile valley in eastern Lebanon and its most important farming region. Industry, especially the country's agricultural industry, also flourishes in Beqaa. The region broadly corresponds to the Coele-Syria of classical antiquity. The Beqaa is located about east of Beirut. The valley is situated between Mount Lebanon to the west and the Anti-Lebanon mountains to the east. It is the northern continuation of the Jordan Rift Valley, and thus part of the Great Rift Valley, which stretches from Syria to the Red Sea. Beqaa Valley is long and wide on average. It has a Mediterranean climate of wet, often snowy winters and dry, warm summers. Climate The region receives limited rainfall, particularly in the north, because Mount Lebanon creates a rain shadow that blocks precipitation coming from the sea. The northern section has an average annual rainfall of , compared to in the central valley. Nevertheless, two rivers originate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karstic
Karst () is a topography formed from the dissolution of soluble carbonate rocks such as limestone and dolomite. It is characterized by features like poljes above and drainage systems with sinkholes and caves underground. There is some evidence that karst may occur in more weathering-resistant rocks such as quartzite given the right conditions. Subterranean drainage may limit surface water, with few to no rivers or lakes. In regions where the dissolved bedrock is covered (perhaps by debris) or confined by one or more superimposed non-soluble rock strata, distinctive karst features may occur only at subsurface levels and can be totally missing above ground. The study of ''paleokarst'' (buried karst in the stratigraphic column) is important in petroleum geology because as much as 50% of the world's hydrocarbon reserves are hosted in carbonate rock, and much of this is found in porous karst systems. Etymology The English word ''karst'' was borrowed from German in the late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larks
Larks are passerine birds of the family Alaudidae. Larks have a cosmopolitan distribution with the largest number of species occurring in Africa. Only a single species, the horned lark, occurs in North America, and only Horsfield's bush lark occurs in Australia. Habitats vary widely, but many species live in drier regions. When the word "lark" is used without specification, it often refers to the Eurasian skylark ''(Alauda arvensis)''. Taxonomy and systematics The family Alaudidae was introduced in 1825 by the Irish zoologist Nicholas Aylward Vigors as a subfamily Alaudina of the finch family Fringillidae. Larks are a well-defined family, partly because of the shape of their . They have multiple Scute#Birds, scutes on the hind side of their tarsi, rather than the single plate found in most songbirds. They also lack a pessulus, the bony central structure in the syrinx of songbirds. They were long placed at or near the beginning of the songbirds or oscines (now often called Pas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrate
Nitrate is a polyatomic ion with the chemical formula . salt (chemistry), Salts containing this ion are called nitrates. Nitrates are common components of fertilizers and explosives. Almost all inorganic nitrates are solubility, soluble in water. An example of an insoluble nitrate is bismuth oxynitrate. Chemical structure The nitrate anion is the conjugate acid, conjugate base of nitric acid, consisting of one central nitrogen atom surrounded by three identically bonded oxygen atoms in a trigonal planar arrangement. The nitrate ion carries a formal charge of −1. This charge results from a combination formal charge in which each of the three oxygens carries a − charge, whereas the nitrogen carries a +1 charge, all these adding up to formal charge of the polyatomic nitrate ion. This arrangement is commonly used as an example of Resonance (chemistry), resonance. Like the isoelectronic carbonate ion, the nitrate ion can be represented by three resonance structures: Che ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biochemical Oxygen Demand
Biochemical oxygen demand (also known as BOD or biological oxygen demand) is an analytical parameter representing the amount of dissolved oxygen (DO) consumed by aerobic bacteria growing on the organic material present in a water sample at a specific temperature over a specific time period. The BOD value is most commonly expressed in milligrams of oxygen consumed per liter of sample during 5 days of incubation at 20 °C and is often used as a surrogate of the degree of organic water pollution. Biochemical Oxygen Demand (BOD) reduction is used as a gauge of the effectiveness of wastewater treatment plants. BOD of wastewater effluents is used to indicate the short-term impact on the oxygen levels of the receiving water. BOD analysis is similar in function to chemical oxygen demand (COD) analysis, in that both measure the amount of organic compounds in water. However, COD analysis is less specific, since it measures everything that can be chemically oxidized, rather than j ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joun
Joun () is a Lebanese village sitting on seven hills in the Chouf () district of Mount Lebanon at a distance of 13 kilometers from the city of Sidon in Lebanon. Joun means "the corner" in Aramaic, and it is located in between Mount Lebanon and South Lebanon, forming a corner shape. Joun is a village of approximately 7,400 inhabitants, who are mainly Greek Catholic, Shiite, and Maronite. History Joun is an old village located above the temple of the Phoenician god Eshmun near the city of Sidon. In 1887, the Ottomans appointed the first commission of Joun. The members were: Gerges Chamy, Mitri Mousawbaa, Assaad Khoriaty, Mikhael Nab’aa, Youssef Gebran Khoury (Greek Catholics); Hossein Chamseddine, Hossein Saleh (Shiites); Ibrahim Youness, Youssef Estefan (Maronites); and Youssef Koussa (Protestant). Their tasks were to take care of the land of Joun and regulate the environment and day-to-day work, such as agricultural life and water, and also to supervise the local security. By ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ain Ez Zarqa
Ain ez Zarqa (also spelled Ayn ez Zarqa or Ain-el-Zerqa) is a natural artesian karst spring located south of Hermel in the Beqaa Governorate, in central Lebanon. Producing an average of 3,435 gallons per second, it is the main source of the Orontes River. Because of its heavy flow, it is characterized as a first-magnitude spring. It sits beneath the caves at Deir Mar Maroun, an ancient monastery carved into the cliffs that surround the spring. Melting snow from these nearby heights supplements the spring's large groundwater reservoir, in the Jurassic and Cretaceous strata. It is estimated that the spring's phreatic zone The phreatic zone, saturated zone, or zone of saturation, is the part of an aquifer, below the water table The water table is the upper surface of the phreatic zone or zone of saturation. The zone of saturation is where the pores and fractur ... reservoir contains as much as 10 billion cubic metres of storage. As a result, its flow has been less affected ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Awali (river)
The Awali ( / ALA-LC: ''Nahr al-Awalī'', ancient Bostrenus / Bostrenos) is a Perennial stream, perennial river flowing in Southern Lebanon. In ancient times it was known as Asclepius River. The long Awali originates from the Barouk mountain at a height of and the Niha mountain. The Awali is supplemented by two tributaries, the Barouk and Aaray rivers. The Awali is also known as the Bisri river in its upper section; it flows through the western face of Mount Lebanon and into the Mediterranean. The Awali river has a discharge of , it forms a watershed that has an area of about . The river flows into Joun Lake, which is part of the Bisri Dam project to improve the supply of fresh water to the region. A large portion of the Bisri Dam project funding, from the World Bank, was cancelled by the World Bank in September 2020. References {{coord, 33.5888, N, 35.3860, E, source:wikidata, display=title Rivers of Lebanon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Litani River Authority
Litani may refer to: * Litani River (''Nahr al-Līţānī''; from Leontes), a river in Lebanon ** Battle of the Litani River (1941) ** 1978 South Lebanon conflict or Operation Litani, invasion by Israel of Lebanon up to the Litani River ** Operation Change of Direction 11 The Operation Change of Direction 11 was the final offensive operation by the Israel Defense Forces (IDF) during the 2006 Lebanon War that began on August 11, 2006, and ended three days later when the ceasefire came into effect. It involved a t ... or Litani offensive, by Israel during the 2006 Lebanon War * Litani (Maroni) (or ''Itany''), a river forming part of the boundary between Suriname and French Guiana See also * Litany (other) {{place name disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beqaa Governorate
Beqaa ( ') is a governorate in Lebanon and one of the eight districts of the country. It is located in the eastern part of Lebanon and borders with Syria. The capital of the district is the city of Zahlé. Districts Since 2014, Beqaa Governorate contains three districts: * West Beqaa * Rashaya * Zahle A law was passed in 2003 to separate Baalbek District and Hermel District from Beqaa Governorate to form a new governorate, Baalbek-Hermel Governorate Baalbek-Hermel () is a governorate of Lebanon and is the largest by area in the country. It comprises the districts of Baalbek and Hermel, which in turn are subdivided into a total of 74 municipalities. The capital is at Baalbek. The governorate .... Implementation of Baalbek-Hermel began in 2014 with the appointment of its first governor. Demographics According to registered voters in 2014: References Governorates of Lebanon {{Lebanon-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Markaba (Beqaa Governorate)
Markaba () is a municipality located at Marjayoun municipality at Nabatieh Governorate, Lebanon. It is south of Raabatt Tallame, east of Banni Hayyan and northeast of Talloussah, South Lebanon. Etymology E. H. Palmer wrote that the name Markaba came from a personal name, from "to ride" or "to lie", as one thing on top of another. History In 1596, it was named as a village, ''Markaba famous as Marj Kaba,'' in the Ottoman ''nahiya'' (subdistrict) of Tibnin under the ''liwa''' (district) of Safad, with a population of fifteen households and one bachelor, all Muslim. The villagers paid a fixed tax rate of 25% on agricultural products, such as wheat, barley, fruit trees, goats and beehives, in addition to "occasional revenues"; a total of 5,110 akçe.Hütteroth and Abdulfattah, 1977, p. 182 In 1875 Victor Guérin found Markaba to have 150 Metawileh inhabitants. He further noted: "Here a mosque replaces a more ancient sanctuary, temple, or church, to which belonged several fragmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
