- 行业: 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, ...
(1) A prominent or conspicuous topographic form, or a salient part thereof. (2) A relief feature generally of third order, but sometimes of second-order magnitude.
Industry:Earth science
An error in direction or measured bearing, caused usually by the departure of an antenna pattern from
Industry:Earth science
That error introduced in a computation by using incorrect data or incorrect theory.
Industry:Earth science
(1) Any part of a surface adjacent to a curve and lying toward the convex side of the curve. (2) That part of a surface not included within the circle of which the curve is part of the circumference.
Industry:Earth science
An estuary in which tidal action is the principal mixing agent.
Industry:Earth science
A long, narrow ridge composed of sand and gravel which was once the bed of a stream flowing under or in the ice of a glacier.
Industry:Earth science
A catalog or listing of the natures and magnitudes of the errors which affect the results of a project. The term is used when the project is a hypo-thetical or planned one as well as when the project is actual.
Industry:Earth science
A graphic record of depth measurements obtained by echo sounding equipment.
Industry:Earth science
The difference between the length of a ray refracted by the atmosphere and the distance along a straight line between the ends of the ray.
Industry:Earth science
A horizontal control datum defined by the following coordinates of the origin and the deflection of the vertical on the International Ellipsoid; the origin is at the control point in Helmert Tower, Potsdam:<br>
Industry:Earth science
