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precipitation-efficiency index

precipitation-efficiency index Devised in 1931 by C. W. Thornthwaite, an index based on the ratio of mean monthly rainfall and temperature values in relation to evaporation rates. Summation of monthly values gives an annual precipitation-efficiency index (P–E), which is used to define major climatic regions. See also Thornthwaite climate classification.

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"precipitation-efficiency index." A Dictionary of Ecology. . Encyclopedia.com. 19 Sep. 2017 <http://www.encyclopedia.com>.

"precipitation-efficiency index." A Dictionary of Ecology. . Encyclopedia.com. (September 19, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/precipitation-efficiency-index-0

"precipitation-efficiency index." A Dictionary of Ecology. . Retrieved September 19, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/precipitation-efficiency-index-0

precipitation-efficiency index

precipitation-efficiency index Devised in 1931 by C. W. Thornthwaite, an index based on the ratio of mean monthly rainfall and temperature values to evaporation rates. Summation of monthly values gives an annual precipitation-efficiency index (P-E), which is used to define major climatic regions. See also THORNTHWAITE CLIMATE CLASSIFICATION.

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"precipitation-efficiency index." A Dictionary of Earth Sciences. . Encyclopedia.com. 19 Sep. 2017 <http://www.encyclopedia.com>.

"precipitation-efficiency index." A Dictionary of Earth Sciences. . Encyclopedia.com. (September 19, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/precipitation-efficiency-index

"precipitation-efficiency index." A Dictionary of Earth Sciences. . Retrieved September 19, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/precipitation-efficiency-index

precipitation-efficiency index

precipitation-efficiency index Devised in 1931 by C. W. Thornthwaite, an index based on the ratio of mean monthly rainfall and temperature values to evaporation rates. Summation of monthly values gives an annual precipitation-efficiency index (P–E), which is used to define major climatic regions.

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"precipitation-efficiency index." A Dictionary of Plant Sciences. . Encyclopedia.com. 19 Sep. 2017 <http://www.encyclopedia.com>.

"precipitation-efficiency index." A Dictionary of Plant Sciences. . Encyclopedia.com. (September 19, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/precipitation-efficiency-index-1

"precipitation-efficiency index." A Dictionary of Plant Sciences. . Retrieved September 19, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/precipitation-efficiency-index-1