A reservoir is, most an enlarged natural or artificial lake, pond or impoundment created using a dam or lock to store water. 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. Defined as a storage space for fluids, reservoirs may hold gasses, including hydrocarbons. Tank reservoirs elevated, or buried tanks. Tank reservoirs for water are called cisterns. Most underground reservoirs are used to store liquids, principally either water or petroleum, below ground. Reservoir is most an enlarged natural or artificial lake. A dam constructed in a valley relies on the natural topography to provide most of the basin of the reservoir. Dams are located at a narrow part of a valley downstream of a natural basin; the valley sides act as natural walls, with the dam located at the narrowest practical point to provide strength and the lowest cost of construction.
In many reservoir construction projects, people have to be moved and re-housed, historical artifacts moved or rare environments relocated. Examples include the temples of Abu Simbel, the relocation of the village of Capel Celyn during the construction of Llyn Celyn, the relocation of Borgo San Pietro of Petrella Salto during the construction of Lake Salto. Construction of a reservoir in a valley will need the river to be diverted during part of the build through a temporary tunnel or by-pass channel. In hilly regions, reservoirs are constructed by enlarging existing lakes. Sometimes in such reservoirs, the new top water level exceeds the watershed height on one or more of the feeder streams such as at Llyn Clywedog in Mid Wales. In such cases additional side dams are required to contain the reservoir. Where the topography is poorly suited to a single large reservoir, a number of smaller reservoirs may be constructed in a chain, as in the River Taff valley where the Llwyn-on, Cantref and Beacons Reservoirs form a chain up the valley.
Coastal reservoirs are fresh water storage reservoirs located on the sea coast near the river mouth to store the flood water of a river. As the land based reservoir construction is fraught with substantial land submergence, coastal reservoir is preferred economically and technically since it does not use scarce land area. Many coastal reservoirs were constructed in Europe. Saemanguem in South Korea, Marina Barrage in Singapore and Plover Cove in China, etc are few existing coastal reservoirs. Where water is pumped or siphoned from a river of variable quality or size, bank-side reservoirs may be built to store the water; such reservoirs are formed by excavation and by building a complete encircling bund or embankment, which may exceed 6 km in circumference. Both the floor of the reservoir and the bund must have an impermeable lining or core: these were made of puddled clay, but this has been superseded by the modern use of rolled clay; the water stored in such reservoirs may stay there for several months, during which time normal biological processes may reduce many contaminants and eliminate any turbidity.
The use of bank-side reservoirs allows water abstraction to be stopped for some time, when the river is unacceptably polluted or when flow conditions are low due to drought. The London water supply system is one example of the use of bank-side storage: the water is taken from the River Thames and River Lee. Service reservoirs store treated potable water close to the point of distribution. Many service reservoirs are constructed as water towers as elevated structures on concrete pillars where the landscape is flat. Other service reservoirs can be entirely underground in more hilly or mountainous country. In the United Kingdom, Thames Water has many underground reservoirs, sometimes called cisterns, built in the 1800s, most of which are lined with brick. A good example is the Honor Oak Reservoir in London, constructed between 1901 and 1909; when it was completed it was said to be the largest brick built underground reservoir in the world and it is still one of the largest in Europe. This reservoir now forms part of the southern extension of the Thames Water Ring Main.
The top of the reservoir is now used by the Aquarius Golf Club. Service reservoirs perform several functions, including ensuring sufficient head of water in the water distribution system and providing water capacity to out peak demand from consumers, enabling the treatment plant to run at optimum efficiency. Large service reservoirs can be managed to reduce the cost of pumping, by refilling the reservoir at times of day when energy costs are low. Circa 3 000 BC, the craters of extinct volcanoes in Arabia were used as reservoirs by farmers for their irrigation water. Dry climate and water scarcity in India led to early development of stepwells and water resource management techniques, including the building of a reservoir at Girnar in 3000 BC. Artificial lakes dating to the 5th century BC have been found in ancient Greece; the artificial Bhojsagar lake in present-day Madhya Pradesh state of India, constructed in the 11th century, covered 650 square kilometres. In Sri Lanka large reservoirs were created by ancient Sinhalese kings in order to save the water for irrigation.
The famous Sri Lankan king Pa
Europe is a continent located in the Northern Hemisphere and in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west and the Mediterranean Sea to the south, it comprises the westernmost part of Eurasia. Since around 1850, Europe is most considered to be separated from Asia by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas and the waterways of the Turkish Straits. Although the term "continent" implies physical geography, the land border is somewhat arbitrary and has been redefined several times since its first conception in classical antiquity; the division of Eurasia into two continents reflects East-West cultural and ethnic differences which vary on a spectrum rather than with a sharp dividing line. The geographic border does not follow political boundaries, with Turkey and Kazakhstan being transcontinental countries. A strict application of the Caucasus Mountains boundary places two comparatively small countries and Georgia, in both continents.
Europe covers 2 % of the Earth's surface. Politically, Europe is divided into about fifty sovereign states of which the Russian Federation is the largest and most populous, spanning 39% of the continent and comprising 15% of its population. Europe had a total population of about 741 million as of 2016; the European climate is affected by warm Atlantic currents that temper winters and summers on much of the continent at latitudes along which the climate in Asia and North America is severe. Further from the sea, seasonal differences are more noticeable than close to the coast. Europe, in particular ancient Greece, was the birthplace of Western civilization; the fall of the Western Roman Empire in 476 AD and the subsequent Migration Period marked the end of ancient history and the beginning of the Middle Ages. Renaissance humanism, exploration and science led to the modern era. Since the Age of Discovery started by Portugal and Spain, Europe played a predominant role in global affairs. Between the 16th and 20th centuries, European powers controlled at various times the Americas all of Africa and Oceania and the majority of Asia.
The Age of Enlightenment, the subsequent French Revolution and the Napoleonic Wars shaped the continent culturally and economically from the end of the 17th century until the first half of the 19th century. The Industrial Revolution, which began in Great Britain at the end of the 18th century, gave rise to radical economic and social change in Western Europe and the wider world. Both world wars took place for the most part in Europe, contributing to a decline in Western European dominance in world affairs by the mid-20th century as the Soviet Union and the United States took prominence. During the Cold War, Europe was divided along the Iron Curtain between NATO in the West and the Warsaw Pact in the East, until the revolutions of 1989 and fall of the Berlin Wall. In 1949 the Council of Europe was founded, following a speech by Sir Winston Churchill, with the idea of unifying Europe to achieve common goals, it includes all European states except for Belarus and Vatican City. Further European integration by some states led to the formation of the European Union, a separate political entity that lies between a confederation and a federation.
The EU originated in Western Europe but has been expanding eastward since the fall of the Soviet Union in 1991. The currency of most countries of the European Union, the euro, is the most used among Europeans. In classical Greek mythology, Europa was a Phoenician princess; the word Europe is derived from her name. The name contains the elements εὐρύς, "wide, broad" and ὤψ "eye, countenance", hence their composite Eurṓpē would mean "wide-gazing" or "broad of aspect". Broad has been an epithet of Earth herself in the reconstructed Proto-Indo-European religion and the poetry devoted to it. There have been attempts to connect Eurṓpē to a Semitic term for "west", this being either Akkadian erebu meaning "to go down, set" or Phoenician'ereb "evening, west", at the origin of Arabic Maghreb and Hebrew ma'arav. Michael A. Barry, professor in Princeton University's Near Eastern Studies Department, finds the mention of the word Ereb on an Assyrian stele with the meaning of "night, sunset", in opposition to Asu " sunrise", i.e. Asia.
The same naming motive according to "cartographic convention" appears in Greek Ἀνατολή. Martin Litchfield West stated that "phonologically, the match between Europa's name and any form of the Semitic word is poor." Next to these hypotheses there is a Proto-Indo-European root *h1regʷos, meaning "darkness", which produced Greek Erebus. Most major world languages use words derived from Europa to refer to the continent. Chinese, for example, uses the word Ōuzhōu. In some Turkic languages the Persian name Frangistan is used casually in referring to much of Europe, besides official names such as Avrupa or Evropa; the prevalent definition of Europe as a geographical term has been in use since the mid-19th century. Europe is taken to be bounded by large bodies of water
Eleanor of Arborea
Eleanor of Arborea was one of the most powerful and important, one of the last, judges of Sardinia, Sardinia's most famous heroine. When Judge Pietro III of Arborea died without descendants in 1347, the Crown de Logu of the Judged elected the father of Eleanor, who held his brother’s old post from 1347 to 1376. Eleanor was born at Molins de Rei. Recent studies, based on a letter from Aymeric VI of Narbonne, husband of Beatrice, to King Peter IV of Aragon, in which he claimed the Arboreal throne for son Guglielmo I after the death of Ugone III, ascertain that she was the third child of Marianus IV and Timbora, she was married off to Brancaleone Doria, for the sake of an alliance between the Doria and Arborea families. She obtained her judgeship in 1383 when her brother Ugone and his daughter were killed in a conspiracy. In 1392 Eleanor granted for the first time in history the protection of bird nests against illegal hunters under the jurisdiction conferred by the Carta de Logu, she herself, as well as her other family members, enjoyed falconry.
She enacted the code of laws known as the Carta de Logu, in effect in Sardinia from 1395 until 1827. In that code there is the modernizing of certain norms and the juridical wisdom that contains elements of the Roman-canonical tradition, the Byzantine one, the Bolognese jurisprudence and the thought of the glossators of the Catalan court culture, but above all the local juridical elaboration of the Sardinian customs made by Sardinian municipal law. One notable provision of the Code is that it gave sons the same inheritance rights; as well, it declared that rape could be recompensed through marriage only if the woman, raped agreed to marry her rapist, if she did the Code declared that the rapist still had to either pay a large fine to the Senate or have his foot cut off. If she did not agree to marry him, he had to give her a dowry that suited her social status, so that she could marry someone else, he still had to either pay a large fine to the Senate or have his foot cut off; as well, these punishments were not affected by.
The Code led Eleanor to be remembered as one of the first lawmakers to set up the condition of reciprocity when dealing with foreigners, as well as the crime of misfeasance. Eleanor died of plague in 1404, Arborea fell into decline due to her death; the scholar Francesco Cesare Casula identified, in the church of San Gavino Monreale, a few miles from the castle of Monreale in Sardara, the high reliefs representing the only contemporary portraits of Eleanor, Marianus IV, Ugone III and Brancaleone Doria. There is a statue of Eleanor in the Piazza Eleonora in Oristano. Brancaleone Doria Giudicato of Arborea Marianus IV of Arborea Caravale, Mario. Dizionario Biografico degli Italiani LXII Dugoni – Enza. Rome, 1993. Carta de Logu 15th century Incunable. Http://www.sardegnacultura.it/documenti/7_88_20070215114729.pdf Lupinu, Giovanni. Carta de Logu dell ` Nuova edizione critica secondo il manoscritto di Cagliari. Centro di Studi Filologici Sardi. 2010. ISBN 9788895701219 Manno, Giuseppe. Storia di Sardegna.
P. M. Visaj. Mearns and Richard. Biographies for Birdwatchers. ISBN 0-12-487422-3 Pitzorno, Vita di Eleonora d'Arborea, Milan 2010. Queens of Italy-Women in Power in Medieval Italy: ELEANOR of ARBOREA
Sardinia is the second-largest island in the Mediterranean Sea. It is located west of the Italian Peninsula and to the immediate south of the French island of Corsica. Sardinia is politically a region of Italy, whose official name is Regione Autonoma della Sardegna / Regione Autònoma de Sardigna, enjoys some degree of domestic autonomy granted by a specific Statute, it is divided into four provinces and a metropolitan city, with Cagliari being the region's capital and its largest city. Sardinia's indigenous language and the other minority languages spoken on the island are recognized by the regional law and enjoy "equal dignity" with Italian. Due to the variety of its ecosystems, which include mountains, plains uninhabited territories, rocky coasts and long sandy beaches, the island has been defined metaphorically as a micro-continent. In the modern era, many travelers and writers have extolled the beauty of its untouched landscape, which houses the vestiges of the Nuragic civilization; the name Sardinia is from the pre-Roman noun *srd- romanised as sardus.
It makes its first appearance on the Nora Stone, where the word Šrdn testifies to the name's existence when the Phoenician merchants first arrived. According to Timaeus, one of Plato's dialogues and its people as well might have been named after a legendary woman going by Sardò, born in Sardis, capital of the ancient Kingdom of Lydia. There has been speculation that identifies the ancient Nuragic Sards with the Sherden, one of the Sea Peoples, it is suggested that the name had a religious connotation from its use as the adjective for the ancient Sardinian mythological hero-god Sardus Pater, as well as being the stem of the adjective "sardonic". In Classical antiquity, Sardinia was called a number of names besides Sardò or Sardinia, like Ichnusa and Argirofleps. Sardinia is the second-largest island in the Mediterranean Sea, with an area of 24,100 square kilometres, it is situated between 8 ° 8' and 9 ° 50' east longitude. To the west of Sardinia is the Sea of Sardinia, a unit of the Mediterranean Sea.
The nearest land masses are the island of Corsica, the Italian Peninsula, Tunisia, the Balearic Islands, Provence. The Tyrrhenian Sea portion of the Mediterranean Sea is directly to the east of Sardinia between the Sardinian east coast and the west coast of the Italian mainland peninsula; the Strait of Bonifacio is directly north of Sardinia and separates Sardinia from the French island of Corsica. The coasts of Sardinia are high and rocky, with long straight stretches of coastline, many outstanding headlands, a few wide, deep bays, many inlets and with various smaller islands off the coast; the island has an ancient geoformation and, unlike Sicily and mainland Italy, is not earthquake-prone. Its rocks date in fact from the Palaeozoic Era. Due to long erosion processes, the island's highlands, formed of granite, trachyte, basalt and dolomite limestone, average at between 300 to 1,000 metres; the highest peak is part of the Gennargentu Ranges in the centre of the island. Other mountain chains are Monte Limbara in the northeast, the Chain of Marghine and Goceano running crosswise for 40 kilometres towards the north, the Monte Albo, the Sette Fratelli Range in the southeast, the Sulcis Mountains and the Monte Linas.
The island's ranges and plateaux are separated by wide alluvial valleys and flatlands, the main ones being the Campidano in the southwest between Oristano and Cagliari and the Nurra in the northwest. Sardinia has few major rivers, the largest being the Tirso, 151 km long, which flows into the Sea of Sardinia, the Coghinas and the Flumendosa. There are 54 artificial dams that supply water and electricity; the main ones are Lake Coghinas. The only natural freshwater lake is Lago di Baratz. A number of large, salt-water lagoons and pools are located along the 1,850 km of the coastline; the climate of the island is variable from area to area, due to several factors including the extension in latitude and the elevation. It can be classified in two different macrobioclimates, one macrobioclimatic variant, called Submediterranean, four classes of continentality, eight thermotypic horizons and seven ombrotypic horizons, resulting in a combination of 43 different isobioclimates. During the year there is a major concentration
Italy the Italian Republic, is a country in Southern Europe. Located in the middle of the Mediterranean Sea, Italy shares open land borders with France, Austria and the enclaved microstates San Marino and Vatican City. Italy covers an area of 301,340 km2 and has a temperate seasonal and Mediterranean climate. With around 61 million inhabitants, it is the fourth-most populous EU member state and the most populous country in Southern Europe. Due to its central geographic location in Southern Europe and the Mediterranean, Italy has been home to a myriad of peoples and cultures. In addition to the various ancient peoples dispersed throughout modern-day Italy, the most famous of which being the Indo-European Italics who gave the peninsula its name, beginning from the classical era and Carthaginians founded colonies in insular Italy and Genoa, Greeks established settlements in the so-called Magna Graecia, while Etruscans and Celts inhabited central and northern Italy respectively; the Italic tribe known as the Latins formed the Roman Kingdom in the 8th century BC, which became a republic with a government of the Senate and the People.
The Roman Republic conquered and assimilated its neighbours on the peninsula, in some cases through the establishment of federations, the Republic expanded and conquered parts of Europe, North Africa and the Middle East. By the first century BC, the Roman Empire emerged as the dominant power in the Mediterranean Basin and became the leading cultural and religious centre of Western civilisation, inaugurating the Pax Romana, a period of more than 200 years during which Italy's technology, economy and literature flourished. Italy remained the metropole of the Roman Empire; the legacy of the Roman Empire endured its fall and can be observed in the global distribution of culture, governments and the Latin script. During the Early Middle Ages, Italy endured sociopolitical collapse and barbarian invasions, but by the 11th century, numerous rival city-states and maritime republics in the northern and central regions of Italy, rose to great prosperity through shipping and banking, laying the groundwork for modern capitalism.
These independent statelets served as Europe's main trading hubs with Asia and the Near East enjoying a greater degree of democracy than the larger feudal monarchies that were consolidating throughout Europe. The Renaissance began in Italy and spread to the rest of Europe, bringing a renewed interest in humanism, science and art. Italian culture flourished, producing famous scholars and polymaths such as Michelangelo, Leonardo da Vinci, Raphael and Machiavelli. During the Middle Ages, Italian explorers such as Marco Polo, Christopher Columbus, Amerigo Vespucci, John Cabot and Giovanni da Verrazzano discovered new routes to the Far East and the New World, helping to usher in the European Age of Discovery. Italy's commercial and political power waned with the opening of trade routes that bypassed the Mediterranean. Centuries of infighting between the Italian city-states, such as the Italian Wars of the 15th and 16th centuries, left the region fragmented, it was subsequently conquered and further divided by European powers such as France and Austria.
By the mid-19th century, rising Italian nationalism and calls for independence from foreign control led to a period of revolutionary political upheaval. After centuries of foreign domination and political division, Italy was entirely unified in 1871, establishing the Kingdom of Italy as a great power. From the late 19th century to the early 20th century, Italy industrialised, namely in the north, acquired a colonial empire, while the south remained impoverished and excluded from industrialisation, fuelling a large and influential diaspora. Despite being one of the main victors in World War I, Italy entered a period of economic crisis and social turmoil, leading to the rise of a fascist dictatorship in 1922. Participation in World War II on the Axis side ended in military defeat, economic destruction and the Italian Civil War. Following the liberation of Italy and the rise of the resistance, the country abolished the monarchy, reinstated democracy, enjoyed a prolonged economic boom and, despite periods of sociopolitical turmoil became a developed country.
Today, Italy is considered to be one of the world's most culturally and economically advanced countries, with the sixth-largest worldwide national wealth. Its advanced economy ranks eighth-largest in the world and third in the Eurozone by nominal GDP. Italy owns the third-largest central bank gold reserve, it has a high level of human development, it stands among the top countries for life expectancy. The country plays a prominent role in regional and global economic, military and diplomatic affairs. Italy is a founding and leading member of the European Union and a member of numerous international institutions, including the UN, NATO, the OECD, the OSCE, the WTO, the G7, the G20, the Union for the Mediterranean, the Council of Europe, Uniting for Consensus, the Schengen Area and many more; as a reflection
In hydrology, the inflow of a body of water is the source of the water in the body of water. It can refer to the average volume of incoming water in unit time, it is contrasted with outflow. All bodies of water have multiple inflows, but one inflow may predominate and be the largest source of water. However, in many cases, no single inflow will predominate and there will be multiple primary inflows. For a lake, the inflow may be a river or stream that flows into the lake. Inflow may be speaking, not flows, but rather precipitation, like rain. Inflow can be used to refer to groundwater recharge; the dictionary definition of inflow at Wiktionary