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Karst Spring
A karst spring or karstic spring is a Spring (hydrology), spring (exsurgence, outflow of groundwater) that is part of a karst hydrological system. Description Because of their often conical or inverted bowl shape, karst springs are also known in German-speaking lands as a ''Topf'' ("pot") which is reflected in names such as Aachtopf (the source of the Radolfzeller Aach) or Blautopf (the source of the Blau (river), Blau river in Blaubeuren). Karst springs often have a very high yield (hydrology), yield or Discharge (hydrology), discharge rate, because they are often fed by underground drainage from a large catchment basin. Because the springs are usually the terminus of a cave drainage system at the place where a river cave reaches the Earth's surface, it is often possible to enter the caves from karst springs for exploration. Large karst springs are located in many parts of the world; the largest ones are believed to be in Papua New Guinea, with others located in Mediterranean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cetina River Source
The Cetina () is a river in southern Croatia. It has a length of and its basin covers an area of . From its source, Cetina descends from an elevation of above sea level to the Adriatic Sea. It is the most water-rich river in Dalmatia.Naklada Naprijed, ''The Croatian Adriatic Tourist Guide'', pg. 258, Zagreb (1999), Geography and geology Cetina has its source in the northwestern slopes of Dinara. Rising from a spring at Milasevo near a small village called Cetina (Civljane), Cetina, north of Vrlika, it flows to the Adriatic Sea. A large artificial lake begins near Vrlika, the Peruća Lake, which was created by a Peruća Dam, dam some downstream. Cetina then passes into the lower portion of the Sinj karst field, through the city of Sinj. After that it runs eastward, through the city of Trilj and then back westward around the Mosor mountain, before flowing into the Adriatic in the city of Omiš. Apart from its visible basin, the Cetina also receives a lot of water from the w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Croatia
Croatia, officially the Republic of Croatia, is a country in Central Europe, Central and Southeast Europe, on the coast of the Adriatic Sea. It borders Slovenia to the northwest, Hungary to the northeast, Serbia to the east, Bosnia and Herzegovina and Montenegro to the southeast, and shares a maritime border with Italy to the west. Its capital and largest city, Zagreb, forms one of the country's Administrative divisions of Croatia, primary subdivisions, with Counties of Croatia, twenty counties. Other major urban centers include Split, Croatia, Split, Rijeka and Osijek. The country spans , and has a population of nearly 3.9 million. The Croats arrived in modern-day Croatia, then part of Illyria, Roman Illyria, in the late 6th century. By the 7th century, they had organized the territory into Duchy of Croatia, two duchies. Croatia was first internationally recognized as independent on 7 June 879 during the reign of Duke Branimir of Croatia, Branimir. Tomislav of Croatia, Tomis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drinking Water
Drinking water or potable water is water that is safe for ingestion, either when drunk directly in liquid form or consumed indirectly through food preparation. It is often (but not always) supplied through taps, in which case it is also called tap water. The amount of drinking water required to maintain good health varies, and depends on physical activity level, age, health-related issues, and environmental conditions. This 2004 article focuses on the USA context and uses data collected from the US military. For those who work in a hot climate, up to a day may be required. About 1 to 2 billion people lack safe drinking water. Water can carry vectors of disease and is a major cause of death and illness worldwide. Developing countries are most affected by unsafe drinking water. Sources Potable water is available in almost all populated areas of the world, although it may be expensive, and the supply may not always be sustainable. Sources where drinking water is commo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gerstetten
Gerstetten is a municipality in the district of Heidenheim in Baden-Württemberg in southern Germany. It consists of the following villages: * Gerstetten (population: 7,534) * Dettingen (population: 2,042, incorporation 1972) * Gussenstadt (population: 1,533, incorporation 1971) * Heldenfingen (population: 1,052, incorporation 1971) * Heuchlingen (population: 924, incorporation 1974) * Heuchstetten (population: 137) * and Sontbergen (population: 56, incorporation 1974). The total population of the municipality is 12,009 (population figures as of September 2004). Politics The current mayor is Roland Polaschek. Twin towns Gerstetten has two twin towns: Cébazat, a small town near Clermont-Ferrand in France and Pilisvörösvár (German: Werischwar) in Hungary, about 20 km from Budapest. * Cébazat (near Clermont-Ferrand), France (Auvergne) since June 27, 1992 * Pilisvörösvár, Hungary since May 5, 1996 Notable people *1578 Andreas Josua Ulsheimer, † ???, born in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superstition
A superstition is any belief or practice considered by non-practitioners to be irrational or supernatural, attributed to fate or magic (supernatural), magic, perceived supernatural influence, or fear of that which is unknown. It is commonly applied to beliefs and practices surrounding luck, amulets, astrology, fortune telling, Spirit (animating force), spirits, and certain paranormal wikt: entity, entities, particularly the belief that future events can be foretold by specific unrelated prior events. The word ''superstition'' is also used to refer to a religion not practiced by the majority of a given society regardless of whether the prevailing religion contains alleged superstitions or to all religions by the antireligion, antireligious. Contemporary use Definitions of the term vary, but they commonly describe superstitions as irrational beliefs at odds with scientific knowledge of the world. Stuart Vyse proposes that a superstition's "presumed mechanism of action is inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intermittent Spring
A rhythmic spring (also: ebb and flow spring, periodic spring, intermittent spring) is a cold water spring from which the flow of water either varies or starts and stops entirely, over a fairly regular time-scale of minutes or hours. Compared to continuously flowing springs, rhythmic springs are uncommon, with the number worldwide estimated in 1991 to be around one hundred. Theory Although the cause of the periodicity in flow is not known for certain, the most accepted theory (first postulated in the early 18th century) is that as groundwater flows continuously into a cavern, it fills a narrow tube that leads upwards from near the base of the cavern, then downwards to the spring. As the water level reaches the high point of the tube, it creates a siphon effect, sucking water out of the chamber. Eventually air rushes into the tube and breaks the siphon, stopping the flow if there is no other source feeding the spring, or reducing the flow if there is a continuous flow from ano ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Level Rise
The sea level has been rising from the end of the last ice age, which was around 20,000 years ago. Between 1901 and 2018, the average sea level rose by , with an increase of per year since the 1970s. This was faster than the sea level had ever risen over at least the past 3,000 years. The rate accelerated to /yr for the decade 2013–2022. Climate change due to human activities is the main cause. Between 1993 and 2018, melting ice sheets and glaciers accounted for 44% of sea level rise, with another 42% resulting from thermal expansion of water. Sea level rise lags behind changes in the Earth's temperature by decades, and sea level rise will therefore continue to accelerate between now and 2050 in response to warming that has already happened. What happens after that depends on future human greenhouse gas emissions. If there are very deep cuts in emissions, sea level rise would slow between 2050 and 2100. The reported factors of increase in flood hazard potential are often e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mediterranean Sea
The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern Europe, on the south by North Africa, and on the west almost by the Morocco–Spain border. The Mediterranean Sea covers an area of about , representing 0.7% of the global ocean surface, but its connection to the Atlantic via the Strait of Gibraltar—the narrow strait that connects the Atlantic Ocean to the Mediterranean Sea and separates the Iberian Peninsula in Europe from Morocco in Africa—is only wide. Geological evidence indicates that around 5.9 million years ago, the Mediterranean was cut off from the Atlantic and was partly or completely desiccation, desiccated over a period of some 600,000 years during the Messinian salinity crisis before being refilled by the Zanclean flood about 5.3 million years ago. The sea was an important ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fontaine De Vaucluse (spring)
The Fontaine de Vaucluse (; ) is a karst spring in the Communes of France, commune of Fontaine-de-Vaucluse, France. It is the largest karst spring in metropolitan France by flow and fifth largest in the world, with an annual output of of water. The spring is the prime example in hydrogeology of a "Vaucluse spring". It is the source of the Sorgue. Geography Location The Fontaine de Vaucluse is in the commune of Fontaine-de-Vaucluse in the department of Vaucluse. The commune was formerly called "Vaucluse", but being in a department with the same name caused confusion, so the commune was renamed "Fontaine-de-Vaucluse", after the spring. Origin of the name The village in which the spring is located was called "''Vallis Clausa''" ("closed valley") in Latin because of its topographical position. This in time became "Vaucluse", from which the spring takes its name. The name in the Provençal dialect is "Fònt de Vauclusa", the spring of the closed valley. The word ''font'' has two mean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinkhole
A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer. The term is sometimes used to refer to doline, enclosed depressions that are also known as shakeholes, and to openings where surface water enters into underground passages known as ''ponor'', swallow hole or swallet. A ''cenote'' is a type of sinkhole that exposes groundwater underneath. ''Sink'', and ''stream sink'' are more general terms for sites that drain surface water, possibly by infiltration into sediment or crumbled rock. Most sinkholes are caused by Karst topography, karst processes – the chemical dissolution of carbonate rocks, collapse or suffosion processes. Sinkholes are usually circular and vary in size from tens to hundreds of Metre, meters both in diameter and depth, and vary in form from soil-lined bowls to bedrock-edged chasms. Sinkholes may form gradually or suddenly, and are found worldwide. Formation Natural processes Sinkholes may capture surf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estavelle
In karst geology, estavelle or inversac is a ground orifice which, depending on weather conditions and season, can serve either as a sink or as a source of fresh water. It is a type of ponor or sinkhole A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer. The term is sometimes used to refer to doline, enclosed depressions that are also known as shakeholes, and to openings where surface water .... References Karst Cave geology Dinaric karst formations Dinaric Alps {{geology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
