- Industry: Earth science
- Number of terms: 93452
- Number of blossaries: 0
- Company Profile:
Founded in 1941, the American Congress on Surveying and Mapping (ACSM) is an international association representing the interests of professionals in surveying, mapping and communicating spatial data relating to the Earth's surface. Today, ACSM's members include more than 7,000 surveyors, ...
Extension of a growing city outward along the main routes of transportation. The pattern created by axial growth is usually star-shaped.
Industry:Earth science
A grid reference system using a square grid or standard scale, with its origin placed on a graticule so that locations can be referred to or directions and distances between points on the grid calculated accurately and consistently. Also written as Military Grid Reference System.
Industry:Earth science
Ordinarily, words of limitation and not of purchase. At common law, the words were essential to conveyance granting title in fee simple. They are unneces-sary for that or any other purpose under statute law when used in wills or deeds.
Industry:Earth science
A calendar in which numbered years not divisible by 4, or divisible by 100 but not divisible by 400, contain 365 mean solar days, while numbered years (called leap years) divisible by 400, or divisible by 4 but not by 100, contain 366 mean solar days. Thus, 1985 is not a leap year but 1984 is; 1600 and 2000 are leap years, but 1700, 1800, and 1900 are not. Therefore, only 97 years out of every 400 are longer by 1 day, and the average length of a year in the Gregorian calendar is exactly 365.2425 mean solar days. This average year is longer than the tropical year by about 26 s. The Gregorian calendar was adopted by all Roman Catholic countries in 1582 October 4/15. Great Britain and the American colonies adopted it in 1752 September 3/14. The USSR adopted it for civil purposes in 1918 February 1/14
Industry:Earth science
A templet made by tracing the radials from a photograph onto a transparent sheet. Hand templets are laid out and adjusted by hand to form the radial aerotriangulation.
Industry:Earth science
A (railroad) yard in which cars are moved (sorted) by pushing them over a summit, beyond which they move by gravity.
Industry:Earth science
A collection of rectangular grid systems devised or adopted by the British for use on military maps. There is no related global plan for the many grids, belts, and zones making up the British grid system. It is being replaced by the Universal Transverse Mercator (UTM) grid system.
Industry:Earth science
Geoidal height above an ellipsoid of reference having its center at the Earth's center of mass.
Industry:Earth science
The tendency of the axis of rotation of an object rotating at high speed to maintain its initial direction in space without modification.
Industry:Earth science
