- Industry: 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, ...
(1) A Julian date calculated in days containing 86 400 ephemeris second. (2) A Julian date with the day beginning at 12h Ephemeris Time instead of at 12h Universal Time.
Industry:Earth science
An instant identified by giving the Julian day number of the Julian day preceding the instant and the fractional part of the day from the preceding noon (12h) U.T. to the instant. Unless otherwise specified, each Julian day is a mean solar day.
Industry:Earth science
An image which can, in concept, be superposed on the object exactly with only a change in scale being needed.
Industry:Earth science
Any individual or institution that supplies investment advice to clients on a per fee basis. The investment advisor inherently has no role in the management of the underlying portfolio companies of a partnership/fund.
Industry:Earth science
A rotational ellipsoid adopted by the International Association of Geodesy (IAG) in 1924 for international use. It is characterized by the following constants:<br>
Industry:Earth science
The magnitude of gravity, as distinct from the direction of gravity. The intensity of gravity is measured by spring balances such as spring-type gravimeters. It is what geophysicists and geodesists usually mean by gravity.
Industry:Earth science
(1) The process of matching two pictures to determine the locations of the elements of one picture with respect to the corresponding elements of the other.
Industry:Earth science
The set of points in image space formed by the intersection of rays from corresponding points in object space. The power radiated from each point on the object is concentrated by the optical system to a small region, the real image, in image space. This power can be detected and recorded by a suitable material such as photographic emulsion (if the image is formed by light)
Industry:Earth science
Property held jointly by two or more persons by the same title, whether their rights be equal or unequal in quantity or value.
Industry:Earth science
