15 Terms
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Mapping science
The systemic study of the processes and designs involved with map making.
Industry: Earth science
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Mapping science
helical antenna
Earth science; Mapping science
An antenna in the form of an open ended, loosely coiled helix; the distance around one turn is approximately equal to the wavelength for which the antenna was designed. It has appreciable gain in ...
amplitude of oscillation
Earth science; Mapping science
The length of the arc passed over by a pendulum in moving from a new position of greatest displacement to the other.
open bay
Earth science; Mapping science
(1) A coastal indentation that is part of the open sea. (2) A coastal indentation which encloses an area less than that inclosed by a semi circle whose diameter is a line drawn between the ...
ascension
Earth science; Mapping science
A motion from a lower to a higher location. In particular, a point on the celestial equator at which such a motion occurs.
dihedral angle
Earth science; Mapping science
(1) The figure formed by two intersecting half planes and the line (called the axis) of intersection on which they terminate. The half planes are called the sides of the dihedral angle. (2) The ...
backstep
Earth science; Mapping science
A method of determining the offsets for the line representing the lowest latitude of a map projection by measuring the appropriate distances down from the line representing the highest latitude.
individual model aerotriangulation adjustment
Earth science; Mapping science
Aerotriangulation adjustment in which corrections to coordinates of ground points are determined separately for each stereoscopic model. Inconsistencies between coordinates from different models ...
