A decametre (
International spelling as used by the
International Bureau of Weights and Measures and by most English speaking countries,
dekameter or decameter,
), symbol dam ("da" for the
SI prefix
The International System of Units, known by the international abbreviation SI in all languages and sometimes pleonastically as the SI system, is the modern form of the metric system and the world's most widely used system of measurement. E ...
deca-,
"m" for the
SI unit
metre), is a
unit of length in the
International System of Units
The International System of Units, known by the international abbreviation SI in all languages and sometimes pleonastically as the SI system, is the modern form of the metric system and the world's most widely used system of measurement. E ...
(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 (dam
3) is equivalent to a capacity of one megalitre (ML).
One
technical atmosphere is the pressure of one decameter of water. Also, the
are
Are commonly refers to:
* Are (unit), a unit of area equal to 100 m2
Are, ARE or Åre may also refer to:
Places
* Åre, a locality in Sweden
* Åre Municipality, a municipality in Sweden
**Åre ski resort in Sweden
* Are Parish, a municipa ...
(a), a metric unit for land
area, is equal to one square decametre (dam
2).
See also
*
Orders of magnitude (length)
*
Conversion of units, for comparison with other units
References
Metre
+31
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