- Branche: Earth science
- Number of terms: 93452
- Number of blossaries: 0
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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, ...
That part of the Doppler effect which occurs when the source of radiation is moving in a direction perpendicular to the direction of the radiation received by the observer.
Industry:Earth science
The angle whose sine is the eccentricity. Because the eccentricity always lies between 0 and +1, the angular eccentricity always lies between 0 and π/2.
Industry:Earth science
A positioning system consisting of a radio receiver at the points whose coordinates are to be determined, one or more beacons in orbit about the Earth, a number of radio receivers at points whose locations are known, and computing systems for determining the orbits of the beacons and for determining the location of the point of interest. The difference between the frequency of the radio wave as received and the frequency at which the radio wave was transmitted by the beacon is a function of the radial velocity of the beacon with respect to the receiver. Given the ephemeris of the beacon, as determined from data gathered by the receivers at known locations, the coordinates of the receiver at the point of interest can be calculated from the data gathered there and from the ephemeris.
Industry:Earth science
The right, privilege, or liberty given to a person or group to use land belonging to another for a specific and definite purpose. A common easement is that giving a company the right to bring electrical transmission lines across private property. Another is the legal establishment of a public trail across private property. It is approximately equivalent to servitude (Canada), but the latter term includes restrictive covenants and profit a prendre.
Industry:Earth science
In the USA, the territory ceded to the Federal Government by the original thirteen states, together with certain subsequent additions by cession, treaty, and purchase. At its greatest extent, the public domain contained over 1 820 000 000 acres and included the present States of Alaska, Alabama, Arizona, Arkansas, California, Colorado, Florida, Idaho, Illinois, Indiana, Iowa, Kansas, Louisiana, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Mexico, North Dakota, Ohio, Oklahoma, Oregon, South Dakota, Utah, Washington, Wisconsin and Wyoming. It now contains about 677 800 000 acres (2 743 000 sq. km. ), administered by Federal agencies.
Industry:Earth science
(1) Lands granted from the public domain to an individual as a bounty, gift or donation. Particularly, in early history of Pennsylvania, lands thus granted to soldiers of the Revolutionary War. (2) Lands granted from the public domain to a corporation. e.g., lands so granted to railroad companies as incentives to the construction of railroads.
Industry:Earth science
In the civil and old English law: (1) Ownership. (2) Property in the larger sense, including both the right of property and the right of possession or use. (3) The mere right of property, as distinguished from the possession or usufruct. (4) The right which a lord had in the fee of his tenant. In this sense, the word is very clearly distinguished by Bracton from dominicum.
Industry:Earth science
A displacement of the two verniers, on the horizontal circle of a transit or theodolite, so that the line joining their indices does not pass through the axis about which the upper plate rotates.
Industry:Earth science
