Decametre
Unit of length
A decametre (International spelling as used by the International Bureau of Weights and Measures and by most English speaking countries, United States spelling dekameter), symbol dam ("da" for the SI prefix deca-, "m" for the SI unit metre), is a unit of length in the International System of Units (SI) equal to ten metres.
While any combination of SI prefix and unit can be used, many are rarely used in practice; the decametre is used less frequently than other units of length. One practical use is for altitude of geopotential heights in meteorology. The volumetric form cubic decametre is convenient for describing large volumes of water such as in rivers and lakes; a volume of one cubic decametre (dam3) is equivalent to a capacity of 1,000 cubic metres or one megalitre (ML).
One technical atmosphere is the pressure of one decametre of water. Also, the are (a), a non-SI metric unit for land area, is equal to one square decametre (dam2).
Sources and credits
This article is adapted from the Wikipedia article “Decametre”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Container Augsburg.jpg by Martini171, CC BY-SA 3.0
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