- 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, ...
An almost vertical slope along the beach, caused by erosion of the beach by waves. Its height may vary from a few centimeters to a meter or more, depending on the kind of waves acting on the beach and on the kind of material composing the beach.
Industry:Earth science
Involving the combined methods and/or data of astronomy and geodesy. For example, astro geodetic leveling and astro geodetic coordinates.
Industry:Earth science
An alidade which provides horizontal distance and difference of elevation when the stadia interval is multiplied by the constant displayed by the alidade.
Industry:Earth science
That part of a harbor or channel which is constructed or set aside for the turning of ships.
Industry:Earth science
The angle from the line of apsides of an elliptical orbit to the radius vector from the attracting focus to the center of mass of the moving body. It is commonly denoted by v or by v.
Industry:Earth science
The arc through which a beacon, usually a lamp, is visible. It is designated by its limiting bearings as observed from the sea.
Industry:Earth science
A method of block aerotriangulation adjustment applied only to horizontal control (planimetry). Elevations are supposed to be satisfactorily accurate or not important. Developed about 1965 by van der Hout.
Industry:Earth science
Selected material, such as crushed stone, placed on the roadbed to hold the railroad tracks in place.
Industry:Earth science
An adjustment in which conditions are imposed on certain arbitrary functions of the unknowns rather than on the unknowns themselves. For example, it may be required that the trace of the normal matrix be a minimum, or that the coordinates of all points be referred to the center of mass of the adjusted set.
Industry:Earth science
