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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 
bayou
Earth science; Mapping science
(1) The outlet of a lake. (southern U. S. A. ) (2) A small river or creek. (southern U. S. A. )
astrograph mean time
Earth science; Mapping science
A form of mean time used particularly in setting an astrograph (navigational device); 1200 hours mean time is set to occur when the local hour angle of the vernal equinox is 0°.
nadir point aerotriangulation
Earth science; Mapping science
Radial aerotriangulation using the nadir point instead of the principal point.
right acre
Earth science; Mapping science
The share of a citizen of a New England town in the common land. The value of the acre right was a fixed quantity in each town but varied from town to town. A 10 acre lot or ...
amplitude of the tide
Earth science; Mapping science
One half of the difference in elevation between consecutive high water and low water. Also referred to as tidal amplitude or tide amplitude.
arm of the sea
Earth science; Mapping science
A comparatively narrow extension of a larger body of water.
false bearing
Earth science; Mapping science
The difference between the direct bearing and the back bearing, caused by meridional convergence.
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)