- 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, ...
A description containing full information on the vicinity of the piece of land, a call for each tie and monument determining the boundaries, all references to adjoining lands by name and record and a full recital of distances and directions of all courses on the external boundary of the piece of land.
Industry:Earth science
The map outlining present and future rights-of-way for streets or other public land, and adopted by the legislative body of a city or other governmental unit.
Industry:Earth science
That imaginary surface which is thought of as present in a stereoscopic model and to which heights or elevations are referred. The term is often modified to designate the type of photography used, e.g., convergent model datum and transverse model datum.
Industry:Earth science
An equatorial mounting in which the two bearings for the polar axis are both below the declination axis.
Industry:Earth science
A class of map projections mapping, in their normal aspect, parallels of latitude into concentric, circular arcs and mapping meridians into curved lines converging at the pole with their true, angular value. The best known pseudo-azimuthal map-projection is Wiechel's map-projection (1879).
Industry:Earth science
A matrix whose diagonal elements are variances and whose off diagonal elements are covariances.
Industry:Earth science
The magnitude, absolute or apparent, of an object, as determined by measuring the radiation with a photoelectric photometer. The photoelectric photometers most commonly used are much more sensitive to the blue end of the spectrum than the red end, so that the photoelectric magnitudes of red objects are larger than their visual magnitudes, while the photoelectric magnitudes of blue objects are less than their visual magnitudes.
Industry:Earth science
A conic map-projection in which the cone is secant to the spheroid.
Industry:Earth science
