- 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, ...
A method of determining geoidal heights from deflections of the vertical calculated from gravimetric data, or from a combination of gravimetric and astronomic data.
Industry:Earth science
The theory that for a lens to produce a faithful image, it must be large enough to transmit the entire diffraction pattern of the object.
Industry:Earth science
A self reading leveling rod on which graduations are marked by triangles each 0. 02 foot in height. The Barlow leveling rod is no longer in general use.
Industry:Earth science
An astronomical almanac prepared for use on ocean-going vessels, containing such astronomical information as is needed for navigation on the high seas and to the degree of accuracy needed for such navigation.
Industry:Earth science
Some act of concurrence by the adjoining owners bearing on the practical location of their common boundary, where the definite, or more accurate, position of the line or lines has not been or cannot be defined by survey, or with the tacit consent of one by not interposing a formal objection to what might be an encroachment by the other, all subject to judicial review as to the legal effect.
Industry:Earth science
The solid material (sand, silt, gravel, or other material) deposited by running water. It may accumulate to form land (the process, and sometimes the result, being referred to as alluvion) or it may remain below the surface of the water to raise the level of the bed (the result being referred to as batture).
Industry:Earth science
That barometer, in the single base method of barometric altimetry, which is moved to those points whose elevations are to be determined.
Industry:Earth science
A menomic code close to the code (machine language) in which the computer actually does its work.
Industry:Earth science
