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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 
vertical adjustment
Earth science; Mapping science
Adjustment of the elevations or differences of elevations in a vertical network.
aphelion
Earth science; Mapping science
That point, in an elliptical orbit of a planet or comet, which is farthest from the Sun.
assessment work
Earth science; Mapping science
Work required to be performed annually by the claimant in order for him to maintain a possessionary right to a mining claim for which a patent has not been issued.
appleton layer
Earth science; Mapping science
(1) The F layer in the ionosphere. It occurs in the general region between 150 and 300km above the ground. (2) The F 2 -layer in the ionosphere. It occurs at about 300km ...
two pendulum apparatus
Earth science; Mapping science
A pendulum apparatus having two working pendulums hanging from the same support. In use, the two pendulums are set swinging in opposite directions. The effect of flexure in ...
apparent
Earth science; Mapping science
(1) As observed; as seen. (2) Measurable or observable, referring to characteristics of real or visible bodies. The term, common in the older scientific literature, is now ...
accession to real property
Earth science; Mapping science
The addition to real property by growth, increase, or labor. Land gradually deposited on the bank of a stream by imperceptible means. Title to real property can be acquired by ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)