6 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
latent ambiguity
Earth science; Mapping science
An uncertainty which does not appear upon the face of an instrument but arises from evidence aliunde - that is, one which is not involved in the words themselves but arises from outside matters. ...
Airy-Heiskamen gravity reduction
Earth science; Mapping science
A gravity reduction applying to a measured or computed value of gravity the sum ä AH of the free air gravity correction äg f , the complete topographic gravity correction äg tc , and the Airy ...
base line
Earth science; Mapping science
(1) An imaginary line connecting two points and used as a referent for measurements. Also spelled baseline. (2) A surveyed line established with more than usual care, to which surveys are referred ...
beach berm
Earth science; Mapping science
A nearly horizontal portion of the beach, formed by the material left by the waves. Some beaches have no beach berms, while others may have several.
bay
Earth science; Mapping science
(1) In general, an unmistakable and pronounced indentation of a coast. According to the Geneva Convention of 1958, a bay is: a well marked indentation whose penetration is in such proportion to ...
axis of sighting
Earth science; Mapping science
The line drawn through the optical center and centers of curvature of the lenses of a telescope.
great elliptic arc
Earth science; Mapping science
An arc (1) defined by the intersection of an ellipsoid with a plane through the center of the ellipsoid and two specified points on the surface.
