Portal:Lakes

The Lakes Portal
A portal dedicated to Lakes

Selected panorama

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   Thunder Lake in Northern Alberta
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   A view of Lake Teletskoye, the largest lake in the Altai Mountains and the Altai Republic, Russia
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   A view of Isojärvi in Satakunta, Western Finland
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   A view of the six lowest (and largest) lakes of the Seven Rila Lakes
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   A view of Goëngarijpsterpoelen, one of the Frisian Lakes
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   A view of West Lake in Hangzhou, China

Introduction

Lac Gentau in the Ossau Valley of the Pyrenees, France

A lake is a naturally occurring, relatively large and fixed body of water on the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from the ocean, although they may be connected with the ocean by rivers, such as Lake Ontario. Most lakes are freshwater and account for almost all the world's surface freshwater, but some are salt lakes with salinities even higher than that of seawater. Lakes vary significantly in surface area and volume.

Lakes are typically larger and deeper than ponds, which are also water-filled basins on land, although there are no official definitions or scientific criteria distinguishing the two. Lakes are also distinct from lagoons, which are shallow tidal pools dammed by sandbars at coastal regions of oceans or large lakes. Most lakes are fed by springs, and both fed and drained by creeks and rivers, but some lakes are endorheic without any outflow, while volcanic lakes are filled directly by precipitation runoffs and do not have any inflow streams.

Natural lakes are generally found in mountainous areas (i.e. alpine lakes), dormant volcanic craters, rift zones and areas with ongoing glaciation. Other lakes are found in depressed landforms or along the courses of mature rivers, where a river channel has widened over a basin formed by eroded floodplains and wetlands. Some parts of the world have many lakes formed by the chaotic drainage patterns left over from the last ice age. All lakes are temporary over long periods of time, as they will slowly fill in with sediments or spill out of the basin containing them. (Full article...)

Selected article -

Radar satellite image of Lake Vostok

Lake Vostok (Russian: озеро Восток, romanized: ozero Vostok) is the largest of Antarctica's 675 known subglacial lakes. Lake Vostok is located at the southern Pole of Cold, beneath Russia's Vostok Station under the surface of the central East Antarctic Ice Sheet, which is at 3,488 m (11,444 ft) above mean sea level. The surface of this fresh water lake is approximately 4,000 m (13,100 ft) under the surface of the ice, which places it at approximately 500 m (1,600 ft) below sea level.

Measuring 250 km (160 mi) long by 50 km (30 mi) wide at its widest point, it covers an area of 12,500 km² (4,830 sq mi) making it the 16th largest lake by surface area. With an average depth of 432 m (1,417 ft), it has an estimated volume of 5,400 km³ (1,300 cu mi), making it the 6th largest lake by volume.

The lake is divided into two deep basins by a ridge. The liquid water depth over the ridge is about 200 m (700 ft), compared to roughly 400 m (1,300 ft) deep in the northern basin and 800 m (2,600 ft) deep in the southern. (Full article...)

General topics

• List of lakes
  • Lists of lakes
  • List of lakes by area
  • List of lakes by depth
  • List of drying lakes
  • List of international lakes
  • List of ancient lakes
  • List of prehistoric lakes
  • List of largest lakes and seas in the Solar System
• Limnology
• Lake ecosystem
• Lake stratification
• Ancient lake
• Former lake
• Shrunken lake
• Salt lake
• Lava lake
• Reservoir
• Lakes of Titan

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Do you have a question about lakes that you can't find the answer to? Consider asking it at the Wikipedia reference desk.

General images -

The following are images from various Lake-related articles on Wikipedia.

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  Five Flower Lake in Jiuzhaigou, Sichuan (from Lake)
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  The Caspian Sea is either the world's largest lake or a full-fledged inland sea (from Lake)
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  Cross sectional diagram of limnological lake zones (left) and algal community types (right) (from Lake)
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  Lakes can have significant cultural importance. The West Lake of Hangzhou has inspired romantic poets throughout the ages, and has been an important influence on garden designs in China, Japan and Korea. (from Lake)
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  Crater Lake in Oregon, USA (from Volcanogenic lake)
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  The first view of the sediment at the bottom of subglacial Lake Whillans, captured by the WISSARD expedition. Image credit: NASA/JPL, California Institute of Technology (from Subglacial lake)
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  Russian scientist Peter Kropotkin first proposed the idea of fresh water under Antarctic ice. (from Subglacial lake)
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  Lava lake at Mount Nyiragongo in the Democratic Republic of the Congo (from Volcanogenic lake)
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  Round Tangle Lake, one of the Tangle Lakes, 2,864 feet (873 m) above sea level in interior Alaska (from Lake)
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  Lac Gentau in the Ossau Valley of the Pyrenees, France (from Lake)
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  View of Lake Toba in Sumatra, Indonesia which is the largest volcanic lake in the world (from Volcanogenic lake)
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  The crater lake of Mount Rinjani, Indonesia (from Lake)
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  Lake Eyre's shape and depth as a gradient map (from Lake)
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  A view of the southern polar plain of Mars. The area where a subglacial lake has been detected is highlighted. Image credit: USGS Astrogeology Science Center, Arizona State University (from Subglacial lake)
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  Titan's north polar hydrocarbon seas and lakes, as seen in a false-color Cassini synthetic aperture radar mosaic (from Lake)
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  Lake Teletskoye, Siberia (from Lake)
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  The Nowitna River in Alaska. Two oxbow lakes – a short one at the bottom of the picture and a longer, more curved one at the middle-right. (from Lake)
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  Lura Lakes are the glacial lakes of the Lurë Mountains, Albania (from Lake)
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  Ephemeral 'Lake Badwater', a lake only noted after heavy winter and spring rainfall, Badwater Basin, Death Valley National Park, 9 February 2005. Landsat 5 satellite photo (from Lake)
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  An illustration of ice core drilling above subglacial Lake Vostok. These drilling efforts collected re-frozen lake water that has been analyzed to understand the lake's chemistry. Image credit: Nicolle Rager-Fuller / US National Science Foundation (from Subglacial lake)
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  Lake Michigan during a storm near the Ludington Lighthouse (from Lake)
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  Lake Kaniere is a glacial lake in the West Coast region of New Zealand. (from Lake)
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  Soda Lakes in Nevada, USA (from Volcanogenic lake)
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  Ice melting on Lake Balaton in Hungary (from Lake)
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  An artist's depiction of the subglacial lakes and rivers beneath the Antarctic Ice Sheet. Image credit: Zina Deretsky / US National Science Foundation (from Subglacial lake)
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  These kettle lakes in Alaska were formed by a retreating glacier. (from Lake)
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  Lake Mapourika, New Zealand (from Lake)
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  Satellite image of subglacial Lake Vostok in Antarctica. Image credit: NASA (from Subglacial lake)
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  A schematic cross-section of the subglacial pool beneath Taylor Glacier and its outflow, Blood Falls. Image credit: Zina Deretsky / US National Science Foundation (from Subglacial lake)
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  Garibaldi Lake in British Columbia, Canada, is impounded by lava flows comprising The Barrier (from Volcanogenic lake)
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  Badwater Basin dry lake, 15 February 2007. Landsat 5 satellite photo (from Lake)

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WikiProjects

Tulainyo Lake is a freshwater alpine lake in the eastern Sierra Nevada in the U.S. state of California

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External media

External media

• World Lake Database. International Lake Environment Committee Foundation. – provides a searchable database
• Global Lakes and Wetlands Database. World Wide Fund for Nature. – available for free download

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