- 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, ...
An interrupted map made by mapping the sphere onto an inclosing polyhedron, using the gnomonic map projection for each face. Fisher's polygnomonic map is a mapping of the sphere onto a circumscribed icosahedron.
Industry:Earth science
A camera made from a long-focal-length aerial camera of the U.S. Air Force and adapted to photographing artificial satellites. It was used considerably in the 1950's.
Industry:Earth science
The comparing, adjusting, and correcting of details on the overlapping part of a new map to agree with the same details on the overlapped part of an existing map.
Industry:Earth science
An oblique photograph which does not show the horizon.
Industry:Earth science
The process of adding control points to a network in a region already containing control points.
Industry:Earth science
A photograph related to the object photographed by a perspective (projection).
Industry:Earth science
(1) A single piece of land described in a single description in a deed or as one of a number of lots on a plat, separately owned either publicly or privately and capable of being conveyed separately. (2) A piece of land not describable (identifiable) by lot number.
Industry:Earth science
The horizontal-control datum which is defined by the following coordinates of the origin and azimuth (clockwise from South) on the Clarke spheroid of 1866; the origin is at Meades Ranch:<br>
Industry:Earth science
A pendulum in which the point of support is below the center of mass. In this position, the inverted pendulum is in unstable equilibrium and is extremely sensitive to changes in the location of the point of support or to changes in the value of gravity. The Lejay pendulum and the Lejay-Holweck pendulum-apparatus used for gravimetry have the pendulum supported by a short, flat, vertical band of elastic metal, one end of the band being fastened to the support, the other end being fastened to the lower end of the rod carrying the mass.
Industry:Earth science
A tiny, clear spot on photographic negatives, caused by dust, air bubbles or undissolved chemicals.
Industry:Earth science
