- 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, ...
One cycle per second. The symbol required by the S.I. Is Hz. For example, 16 Hz means 16 cycles per second. The term cycles per second (symbol c/s) is still in use but is not part of the S.I. It was replaced officially by hertz because of the common, misleading practice of writing cycles when cycles per second was meant.
Industry:Earth science
(1) The techniques associated with making holograms or with reproducing images from holograms.
Industry:Earth science
(1) The science or art of describing elevations or heights of land surfaces with reference to a specified surface (usually the geoid). (2) The topography (relief) or a region referred to a specific datum. (3) Those parts of a map which represent relief.
Industry:Earth science
A prism inserted in the optical system of an instrument such as the bubble sextant, to permit the horizon to be seen.
Industry:Earth science
The sum of the Bouguer gravity correction and the topographic gravity correction.
Industry:Earth science
Every sort of inheritable property, such as real, personal and corporeal, and incorporate property such as right-of-way.
Industry:Earth science
That area, on the ground, which is illuminated by a transmitter or visible to a detector carried on an aircraft or satellite. The term is usually understood to refer to a particular instant of time, the terms swath or, more often total ground coverage being used to denote the area illuminated or detected over a specific interval of time.
Industry:Earth science
The average interval of time between the Moon's transit over the Greenwich meridian and the time of the following high water at a place. The interval may be expressed either in solar or in lunar time. When it is expressed in solar time, it is the same as the Greenwich high-water interval. When it is expressed in lunar time, it is equal to the Greenwich high-water interval multiplied by the factor 0.966
Industry:Earth science
A gravity anomaly calculated as the average value of gravity anomalies over a specified region.
Industry:Earth science
Representation of a gravity anomaly either mathematically, by means of a formula, or physically as the result of the gravitational attraction by point masses of suitable size and rotating with the Earth.
Industry:Earth science
