Myriad (unit of area)
Encyclopedia
A myriad is an area 100 km × 100 km square i.e. it is 10,000 (one myriad
) square kilometer. 100 of these squares would be one million square kilometers.
The term has a particular use in connection with the British Ordnance Survey
national grid
and the US Military grid reference system
, where the grids are divided into 100 km × 100 km squares, each with a two letter prefix. For example, in an OS grid reference the prefix TL refers to the myriad 500 km east and 200 km north of the grid origin.
A myriad contains 100 hectads
.
Myriad
Myriad , "numberlesscountless, infinite", is a classical Greek word for the number 10,000. In modern English, the word refers to an unspecified large quantity.-History and usage:...
) square kilometer. 100 of these squares would be one million square kilometers.
The term has a particular use in connection with the British Ordnance Survey
Ordnance Survey
Ordnance Survey , an executive agency and non-ministerial government department of the Government of the United Kingdom, is the national mapping agency for Great Britain, producing maps of Great Britain , and one of the world's largest producers of maps.The name reflects its creation together with...
national grid
British national grid reference system
The Ordnance Survey National Grid reference system is a system of geographic grid references used in Great Britain, different from using latitude and longitude....
and the US Military grid reference system
Military grid reference system
The Military Grid Reference System is the geocoordinate standard used by NATO militaries for locating points on the earth. The MGRS is derived from the UTM grid system and the UPS grid system, but uses a different labeling convention...
, where the grids are divided into 100 km × 100 km squares, each with a two letter prefix. For example, in an OS grid reference the prefix TL refers to the myriad 500 km east and 200 km north of the grid origin.
A myriad contains 100 hectads
Hectad (unit of area)
A hectad is an area 10 km x 10 km square.The term has a particular use in connection with the British Ordnance Survey national grid, and then refers to any of the 100 such squares which make up a standard 100 km x 100 km myriad; these are denoted using the letter code of the...
.