Portal:Lakes

The Lakes Portal
A portal dedicated to Lakes

Selected panorama

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

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 -

Satellite photo of Baikal, 2001

Lake Baikal (/baɪˈkɑːl, -ˈkæl/ by-KAHL, -⁠KAL; Russian: Oзеро Байкал, romanized: Ozero Baykal [ˈozʲɪrə bɐjˈkaɫ]; Buryat: Байгал далай, romanized: Baigal dalai) is a large rift lake in Russia. It is situated in southern Siberia, between the federal subjects of Irkutsk Oblast to the northwest and the Republic of Buryatia to the southeast.

At 31,722 km² (12,248 sq mi)—slightly larger than Belgium—Lake Baikal is the world's seventh-largest lake by surface area, as well as the second largest lake in Eurasia after the Caspian Sea. However, because it is also the deepest lake, with a maximum depth of 1,642 metres (5,387 feet; 898 fathoms), Lake Baikal is the world's largest freshwater lake by volume, containing 23,615.39 km³ (5,670 cu mi) of water or 22–23% of the world's fresh surface water, more than all of the North American Great Lakes combined. It is also the world's oldest lake at 25–30 million years, and among the clearest.

Lake Baikal is home to thousands of species of plants and animals, many of them endemic to the region. It is also home to Buryat tribes, who raise goats, camels, cattle, sheep, and horses on the eastern side of the lake, where the mean temperature varies from a winter minimum of −19 °C (−2 °F) to a summer maximum of 14 °C (57 °F). The region to the east of Lake Baikal is referred to as Transbaikalia or as the Transbaikal, and the loosely defined region around the lake itself is sometimes known as Baikalia. UNESCO declared Baikal a World Heritage Site in 1996. (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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General images -

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

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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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  Satellite image of subglacial Lake Vostok in Antarctica. Image credit: NASA (from Subglacial lake)
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  Lac Gentau in the Ossau Valley of the Pyrenees, France (from Lake)
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  Lura Lakes are the glacial lakes of the Lurë Mountains, Albania (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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  Lava lake at Mount Nyiragongo in the Democratic Republic of the Congo (from Volcanogenic lake)
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  Cross sectional diagram of limnological lake zones (left) and algal community types (right) (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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  Crater Lake in Oregon, USA (from Volcanogenic lake)
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  Badwater Basin dry lake, 15 February 2007. Landsat 5 satellite photo (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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  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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  Lake Teletskoye, Siberia (from Lake)
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  Lake Mapourika, New Zealand (from Lake)
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  Lake Michigan during a storm near the Ludington Lighthouse (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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  Russian scientist Peter Kropotkin first proposed the idea of fresh water under Antarctic ice. (from Subglacial lake)
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  Five Flower Lake in Jiuzhaigou, Sichuan (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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  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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  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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  The Caspian Sea is either the world's largest lake or a full-fledged inland sea (from Lake)
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  The crater lake of Mount Rinjani, Indonesia (from Lake)
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  Soda Lakes in Nevada, USA (from Volcanogenic 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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  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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  Ice melting on Lake Balaton in Hungary (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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  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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  These kettle lakes in Alaska were formed by a retreating glacier. (from Lake)
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  Lake Eyre's shape and depth as a gradient map (from Lake)

Related portals

WikiProjects

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

• WikiProject Lakes
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Lakes

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Associated Wikimedia

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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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