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Earth science
Any of several geological sciences that are concerned with the earth, its origins, and all of its various structures and physical forms and phenomena.
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Earth science > Mapping science 
relative elevation
Earth science; Mapping science
The distance of a point above an arbitrary, specified surface of reference, taken along the vertical through the point.
normal orthometric elevation
Earth science; Mapping science
The value HnoN calculated for the elevation of a point PN according to the formula
Eötvös unit
Earth science; Mapping science
A unit of measure for rate of change of acceleration with distance i.e., the gradient of acceleration. It has magnitude and dimensions 10 -9 m/(s²m) or 10 -9 cm/(s²cm). The ...
mean element
Earth science; Mapping science
One of the elements, of an orbit adopted as reference, which approximates the actual, perturbed orbit. Mean elements serve as the basis for calculating perturbations.
enlarger
Earth science; Mapping science
An apparatus which creates an enlarged image of the picture on a photographic transparency. Some enlargers allow tilting the surface (easel) onto which the image is projected. ...
osculating element
Earth science; Mapping science
(1) One of the six orbital elements which specify that elliptical orbit which is tangent to the actual orbit at a particular instant and which the orbiting point mass would follow ...
equation of center
Earth science; Mapping science
The difference between the true anomaly and the mean anomaly. The difference, in elliptical motion, between the actual location in the orbit and the location the body would have ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)