Dixon, John C. Department of Geography, University of Arkansas, Fayetteville, Arkansas.
Show previous versions
- Water characteristics
- Environmental considerations
- Additional Readings
An inland body of standing water occupying a depression on the Earth's surface. The surface of a lake is exposed to the atmosphere; in addition, subterranean lakes occur. The term lake includes expanded parts of rivers, reservoirs behind dams, and lake basins intermittently or previously covered with water. Small lakes are usually called ponds, tarns (in mountains), and less frequently pools or meres. Lakes are variable in size, with most lakes being less than 65 ft (20 m) in depth. Collectively, lakes cover approximately 9.6 × 105 mi2 (2.5 × 106 km2) of the Earth's surface (see table). The largest lake basins together hold about 40% of the Earth's freshwater supplies; about half this volume is contained in a single lake basin, Lake Baikal. See also: Hydrosphere
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Its dedicated editorial team is led by Sagan Award winner John Rennie. Contributors include more than 9000 highly qualified scientists and 42 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 17,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information