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39-457: The villages of Dolní Kamenice, Filipov, Horní Kamenice, Huníkov, Kamenická Nová Víska, Kerhartice, Líska, Pekelský Důl and Víska pod Lesy are administrative parts of Česká Kamenice. The name Kamenice was transferred to the settlement from the Kamenice River. In the 14th century, the settlement was called Německá Kamenice ("German Kamenice") to distinguish it from nearby Srbská Kamenice . From

78-427: 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 the drainage divide line. A drainage basin's boundaries are determined by watershed delineation ,

117-437: A common task in environmental engineering and science. In a closed drainage basin, or endorheic basin , rather than flowing to the ocean, water converges toward the interior of 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 not identical to hydrologic units , which are drainage areas delineated so as to nest into

156-449: A drainage basin, and there are different ways to interpret that data. In the unlikely event that the gauges are many and evenly distributed over an area of uniform precipitation, using the arithmetic mean method will give good results. In the Thiessen polygon method, the drainage basin is divided into polygons with the rain gauge in the middle of each polygon assumed to be representative for

195-540: A drainage boundary is referred to as watershed delineation . Finding the area and extent of a drainage basin is an important step in many areas of science and engineering. Most of the water that discharges from the basin outlet originated as precipitation falling on the basin. A portion of the water that enters the groundwater system beneath the drainage basin may flow towards the outlet of another drainage basin because groundwater flow directions do not always match those of their overlying drainage network. Measurement of

234-517: A memorial and historical overview. The I/13 road (the section from Liberec to Děčín , part of the European route E442 ) passes through the town. Česká Kamenice is located on the railway line Děčín– Rumburk . Česká Kamenice is also connected with Kamenický Šenov by a short railway line. Historic trains run on it. It is only in operation during the summer tourist season and on weekends in some months out of season. Míru Square and its surroundings form

273-581: A multi-level hierarchical drainage system . Hydrologic units are defined to allow multiple inlets, outlets, or sinks. In a strict sense, all drainage basins are hydrologic units but not all hydrologic units are drainage basins. About 48.71% of the world's land drains to the Atlantic Ocean . In North America , surface water drains to the Atlantic via the Saint Lawrence River and Great Lakes basins,

312-541: Is 2.7 m3/s. The longest tributaries of the Kamenice are: The river flows through the municipal territories of Svor , Kytlice , Prysk , Česká Kamenice , Janská , Srbská Kamenice , Jetřichovice , Růžová and Hřensko . Atlantic salmon , which were exterminated in the Czech Republic in the 1920s, have been reintroduced into the river. Efforts to restore it have been ongoing since 1998. The Kamenice flows through

351-656: Is a river in the Czech Republic , a right tributary of the Elbe River. It originates in the Liberec Region , but mostly flows through the Ústí nad Labem Region . It is 37.7 km (23.4 mi) long. Kamenice is a common Czech toponymy. The name is derived from the Czech word kamenný , i.e. 'stony'. The river was named after the character of the river bed. The river is sometimes called Hřenská Kamenice to distinguish it from

390-486: Is from 1352. The town was founded at the crossroads of two paths, the so-called " Bohemian Road" and the " Lusatian Road", probably in the area of an older Slavic settlement. It was founded before 1283, probably in the 1270s during the reign of King Ottokar II , when the colonization of the region culminates mainly in settlers from neighbouring Saxony . In spring 1944, the Rabstein sub-camp of Flossenbürg concentration camp

429-480: Is referred to as " watershed management ". In Brazil , the National Policy of Water Resources, regulated by Act n° 9.433 of 1997, establishes the drainage basin as the territorial division of Brazilian water management. When a river basin crosses at least one political border, either a border within a nation or an international boundary, it is identified as a transboundary river . Management of such basins becomes

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468-600: Is the Dead Sea . Drainage basins have been historically important for determining territorial boundaries, particularly in regions where trade by water has been important. For example, the English crown gave the Hudson's Bay Company a monopoly on the fur trade in the entire Hudson Bay basin, an area called Rupert's Land . Bioregional political organization today includes agreements of states (e.g., international treaties and, within

507-682: The African Great Lakes , the interiors of Australia and the Arabian Peninsula , and parts in Mexico and the Andes . Some of these, such as the Great Basin, are not single drainage basins but collections of separate, adjacent closed basins. In endorheic bodies of water where evaporation is the primary means of water loss, the water is typically more saline than the oceans. An extreme example of this

546-584: The Eastern Seaboard of the United States, the Canadian Maritimes , and most of Newfoundland and Labrador . Nearly all of South America east of the Andes also drains to the Atlantic, as does most of Western and Central Europe and the greatest portion of western Sub-Saharan Africa , as well as Western Sahara and part of Morocco . The two major mediterranean seas of the world also flow to

585-718: The Mississippi (3.22 million km ), and the Río de la Plata (3.17 million km ). The three rivers that drain the most water, from most to least, are the Amazon, Ganges , and Congo rivers. Endorheic basin are inland basins that do not drain to an ocean. Endorheic basins cover around 18% of the Earth's land. Some endorheic basins drain to an Endorheic lake or Inland sea . Many of these lakes are ephemeral or vary dramatically in size depending on climate and inflow. If water evaporates or infiltrates into

624-781: The Nile River ), Southern , Central, and Eastern Europe , Turkey , and the coastal areas of Israel , Lebanon , and Syria . The Arctic Ocean drains most of Western Canada and Northern Canada east of the Continental Divide , northern Alaska and parts of North Dakota , South Dakota , Minnesota , and Montana in the United States, the north shore of the Scandinavian peninsula in Europe, central and northern Russia, and parts of Kazakhstan and Mongolia in Asia , which totals to about 17% of

663-568: The 17th century, the name Česká Kamenice (" Bohemian Kamenice") is used. Česká Kamenice is located about 13 kilometres (8 mi) east of Děčín . The municipal territory is hilly and extends into three geomorphological regions: Lusatian Mountains , Central Bohemian Uplands and Elbe Sandstone Mountains . The highest point is the Studenec hill at 737 m (2,418 ft) above sea level. The Kamenice River and several brooks flow through Česká Kamenice. The first written mention of Česká Kamenice

702-758: The Andes. The Indian Ocean 's drainage basin also comprises about 13% of Earth's land. It drains the eastern coast of Africa, the coasts of the Red Sea and the Persian Gulf , the Indian subcontinent , Burma, and most parts of Australia . The five largest river basins (by area), from largest to smallest, are those of the Amazon (7 million km ), the Congo (4 million km ), the Nile (3.4 million km ),

741-701: The Atlantic. The Caribbean Sea and Gulf of Mexico basin includes most of the U.S. interior between the Appalachian and Rocky Mountains , a small part of the Canadian provinces of Alberta and Saskatchewan , eastern Central America , the islands of the Caribbean and the Gulf, and a small part of northern South America. The Mediterranean Sea basin, with the Black Sea , includes much of North Africa , east-central Africa (through

780-598: The US, interstate compacts ) or other political entities in a particular drainage basin to manage the body or bodies of water into which it drains. Examples of such interstate compacts are the Great Lakes Commission and the Tahoe Regional Planning Agency . In hydrology , the drainage basin is a logical unit of focus for studying the movement of water within the hydrological cycle . The process of finding

819-514: The area. On Studenec, there is an iron observation tower from 1888, a technical monument. A ruin of Česká Kamenice Castle is preserved on the Zámecký hill, in its premises there is a wooden observation tower. The remains of the concentration camp and the underground aircraft factory contains an exposition and under certain conditions are open to the public. Česká Kamenice is twinned with: Kamenice (Elbe) The Kamenice ( German : Kamnitz )

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858-406: The basin, it can form tributaries that change the structure of the land. There are three different main types, which are affected by the rocks and ground underneath. Rock that is quick to erode forms dendritic patterns, and these are seen most often. The two other types of patterns that form are trellis patterns and rectangular patterns. Rain gauge data is used to measure total precipitation over

897-430: The discharge of water from a basin may be made by a stream gauge located at the basin's outlet. Depending on the conditions of the drainage basin, as rainfall occurs some of it seeps directly into the ground. This water will either remain underground, slowly making its way downhill and eventually reaching the basin, or it will permeate deeper into the soil and consolidate into groundwater aquifers. As water flows through

936-441: The drainage area is dependent on the soil type. Certain soil types such as sandy soils are very free-draining, and rainfall on sandy soil is likely to be absorbed by the ground. However, soils containing clay can be almost impermeable and therefore rainfall on clay soils will run off and contribute to flood volumes. After prolonged rainfall even free-draining soils can become saturated , meaning that any further rainfall will reach

975-692: The drainage basin to the mouth, and may accumulate there, disturbing the natural mineral balance. This can cause eutrophication where plant growth is accelerated by the additional material. Because drainage basins are coherent entities in a hydrological sense, it has become common to manage water resources on the basis of individual basins. In the U.S. state of Minnesota , governmental entities that perform this function are called " watershed districts ". In New Zealand, they are called catchment boards. Comparable community groups based in Ontario, Canada, are called conservation authorities . In North America, this function

1014-528: The eponymous rivers in the country. The Kamenice originates in the territory of Svor in the Lusatian Mountains at an elevation of 576 m (1,890 ft) and flows to Hřensko , where it enters the Elbe River at an elevation of 119 m (390 ft). It is 37.7 km (23.4 mi) long. Its drainage basin has an area of 217.2 km (83.9 sq mi). The average discharge at its mouth

1053-435: The ground and along rivers it can pick up nutrients , sediment , and pollutants . With the water, they are transported towards the outlet of the basin, and can affect the ecological processes along the way as well as in the receiving water body . Modern use of artificial fertilizers , containing nitrogen (as nitrates ), phosphorus , and potassium , has affected the mouths of drainage basins. The minerals are carried by

1092-744: The ground at its terminus, the area can go by several names, such playa, salt flat, dry lake , or alkali sink . The largest endorheic basins are in Central Asia , including the Caspian Sea , the Aral Sea , and numerous smaller lakes. Other endorheic regions include the Great Basin in the United States, much of the Sahara Desert , the drainage basin of the Okavango River ( Kalahari Basin ), highlands near

1131-617: The historic town centre. The stone renaissance fountain on the square is from 1574. The main landmarks of the centre are Church of Saint James the Great, Evangelical church, Pilgrimage Chapel of the Nativity of the Virgin Mary, Kamenice Chateau and Salhausen Chateau. There are many preserved houses in Neoclassical and Art Nouveau styles. Due to the natural conditions, there are several rocky lookouts in

1170-460: The national park of Bohemian Switzerland . Among the best preserved and most valuable parts of the national park is the Kamenice Gorge . Punt rides are organized for tourists. The gorge belongs to the most visited tourist destinations of the region and to the most visited natural tourist destinations in the entire Czech Republic. Due to the location in the national park, individual sailing on

1209-418: The rainfall on the area of land included in its polygon. These polygons are made by drawing lines between gauges, then making perpendicular bisectors of those lines form the polygons. The isohyetal method involves contours of equal precipitation are drawn over the gauges on a map. Calculating the area between these curves and adding up the volume of water is time-consuming. Isochrone maps can be used to show

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1248-625: The responsibility of the countries sharing it. Nile Basin Initiative , OMVS for Senegal River , Mekong River Commission are a few examples of arrangements involving management of shared river basins. Management of shared drainage basins is also seen as a way to build lasting peaceful relationships among countries. The catchment is the most significant factor determining the amount or likelihood of flooding . Catchment factors are: topography , shape, size, soil type, and land use (paved or roofed areas). Catchment topography and shape determine

1287-489: The river is prohibited. Drainage basin A drainage basin is an area of land in which 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

1326-461: The river rather than being absorbed by the ground. If the surface is impermeable the precipitation will create surface run-off which will lead to higher risk of flooding; if the ground is permeable, the precipitation will infiltrate the soil. Land use can contribute to the volume of water reaching the river, in a similar way to clay soils. For example, rainfall on roofs, pavements , and roads will be collected by rivers with almost no absorption into

1365-418: The speed with which the runoff reaches a river. A long thin catchment will take longer to drain than a circular catchment. Size will help determine the amount of water reaching the river, as the larger the catchment the greater the potential for flooding. It is also determined on the basis of length and width of the drainage basin. Soil type will help determine how much water reaches the river. The runoff from

1404-415: The time taken for rain to reach the river, while catchment size, soil type, and development determine the amount of water to reach the river. Generally, topography plays a big part in how fast runoff will reach a river. Rain that falls in steep mountainous areas will reach the primary river in the drainage basin faster than flat or lightly sloping areas (e.g., > 1% gradient). Shape will contribute to

1443-477: The time taken for runoff water within a drainage basin to reach a lake, reservoir or outlet, assuming constant and uniform effective rainfall. Drainage basins are the principal hydrologic unit considered in fluvial geomorphology . A drainage basin is the source for water and sediment that moves from higher elevation through the river system to lower elevations as they reshape the channel forms. Drainage basins are important in ecology . As water flows over

1482-753: The world's land. Just over 13% of the land in the world drains to the Pacific Ocean . Its basin includes much of China, eastern and southeastern Russia, Japan, the Korean Peninsula , most of Indochina, Indonesia and Malaysia, the Philippines, all of the Pacific Islands , the northeast coast of Australia , and Canada and the United States west of the Continental Divide (including most of Alaska), as well as western Central America and South America west of

1521-402: Was created here, with a capacity of 600 prisoners. At the end of the war, 1,500 inmates were incarcerated in the camp. The camp provided workers for the nearby underground aircraft factory in the town of Janská, 3 km west of Česká Kamenice. The number of inmate deaths is not known due to the destruction of all camp documentation. The foundations of the camp buildings remain visible, along with

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