runoff variability

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• Water distribution on Earth — Contents 1 Distribution of river water 2 Variability of water availability 3 See also …   Wikipedia

• Murray-Darling Basin — The Murray Darling Basin is 3,375km long, drains one seventh of the Australian land mass, and is currently by far the most significant agricultural area in Australia. The name of the basin is derived from its two major rivers, the Murray River… …   Wikipedia

• Murray-Darling basin — Map of the Murray Darling Basin The Murray Darling basin is a large geographical area in the interior of southeastern Australia, whose name is derived from its two major rivers, the Murray River and the Darling River. It drains one seventh of the …   Wikipedia

• Open and closed lakes — refer to the major subdivisions of lakes bodies of water surrounded by land. An open lake is a lake where water constantly flows out under almost all climatic circumstances. Because water does not remain in an open lake for any length of time,… …   Wikipedia

• Cryosphere — Overview of the Cryosphere and its larger components, from the UN Environment Programme Global Outlook for Ice and Snow. The cryosphere (from the Greek κρύος cryos cold , frost or ice ) is the term which collectively describes the portions of the …   Wikipedia

• climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… …   Universalium

• Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium

• china — /chuy neuh/, n. 1. a translucent ceramic material, biscuit fired at a high temperature, its glaze fired at a low temperature. 2. any porcelain ware. 3. plates, cups, saucers, etc., collectively. 4. figurines made of porcelain or ceramic material …   Universalium

• China — /chuy neuh/, n. 1. People s Republic of, a country in E Asia. 1,221,591,778; 3,691,502 sq. mi. (9,560,990 sq. km). Cap.: Beijing. 2. Republic of. Also called Nationalist China. a republic consisting mainly of the island of Taiwan off the SE coast …   Universalium

• conservation — conservational, adj. /kon seuhr vay sheuhn/, n. 1. the act of conserving; prevention of injury, decay, waste, or loss; preservation: conservation of wildlife; conservation of human rights. 2. official supervision of rivers, forests, and other… …   Universalium

• global warming — an increase in the earth s average atmospheric temperature that causes corresponding changes in climate and that may result from the greenhouse effect. [1975 80] * * * Potential increase in global average surface temperatures resulting from… …   Universalium