- Branche: 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 reducing distances, measured using radio waves, to mean sea level (or the geoid) by combining the reduction with the making of corrections for index or refraction, curvature of path, slope, chord to arc and location of sea level.
Industry:Earth science
A line located midway between the lower level of the flowing water (of a stream) that just reaches the cut bank and the higher level of it that approaches but does not overtop the cut bank. This kind of boundary was created by judicial action in the settlement of the boundary between Oklahoma and Texas.
Industry:Earth science
A leveling instrument designed by G.M. Goulier to keep the line of sight level by having it pass through a prism mounted on a pendulum having a Cardan suspension. It was a forerunner of the present day, automatic leveling instrument.
Industry:Earth science
An instrument which measures the rate of change of some physical quantity with distance, in some specified direction or set of directions. The quantity measured is usually specified as part of the name of the instrument, as, e.g., gravity gradiometer.
Industry:Earth science
A current associated with horizontal differences of pressure in the ocean. In particular, a geostrophic current.
Industry:Earth science
A map produced by applying drawing three meridians so that each passes through one of the three major continental regions (North and South America, Europe and Africa, Asia and Australia) dividing these regions from each other by suitable meridians, and applying Werner's map projection to each lobe thus obtained. New meridians are chosen as desired to keep the central line approximately in the center of the region.
Industry:Earth science
The roughing, as by grinding or scouring, of the surface of a metallic plate to be used in a printing press, to increase the area of the surface and to improve the ability of the surface to absorb water.
Industry:Earth science
A term used to describe changes in riparian lands which bring such changes within the scope of the doctrine of accretion and erosion. The test of what is gradual and imperceptible has been held to be that, though the witnesses may see, from time to time, that progress has been made, they could not perceive it while the progress was going on.
Industry:Earth science
Related to the Earth or the life on the Earth. The form generally favored is geographical. However, geodesists prefer the form geographic in terms such as geographic coordinates, geographic position, geographic north, etc.
Industry:Earth science
A local street or road auxiliary to and located on the side of an arterial highway for service to abutting property and adjacent localities, and for control of access.
Industry:Earth science
