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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 
center of section
Earth science; Mapping science
The point formed by lines connecting opposite corners of quarter sections in a section of land. It is also called the center quarter corner.
break-circuit chronometer
Earth science; Mapping science
A chronometer equipped with a device which automatically breaks an electric circuit to indicate a specific time or interval of time.
forced centering
Earth science; Mapping science
Replacement of one device or instrument by another in such a way that if the original object was vertically over a mark, then so is the replacement. Some mountings are designed ...
panoramic camera
Earth science; Mapping science
A camera which takes a partial or complete panoramic photograph of the terrain. Some designs contain a lens system and slot like aperture which rotate about an axis ...
checkerboard method
Earth science; Mapping science
A method of determining details of the terrain, in a small topographic survey, by covering the region with a rectangular grid marked by stakes at 15, 20 or 30 meter intervals, ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)