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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 
bouguer plate
Earth science; Mapping science
An imaginary, cylindrical plate of infinite radius and of thickness equal to the elevation of a particular gravity station, placed with its upper surface horizontal at the gravity ...
comparison base line
Earth science; Mapping science
(1) The distance between two marked points, determined with highest possible accuracy, and used for calibrating baseline apparatus. (2) Two marked points, the distance between ...
bonds
Earth science; Mapping science
A long-term debt security with contractual obligations regarding interest payments and redemption.
political coastline
Earth science; Mapping science
The limits of inland waters in the vicinity of islands. This term is used to distinguish this kind of coastline from a physical coastline.
gyroscopic compass
Earth science; Mapping science
(1) A compass whose principal component is a gyroscope suspended so that its axis of rotation points to astronomic north. Gravitational torque and the Earth's rotation combine ...
compass error
Earth science; Mapping science
The angular difference between the direction indicated by a compass and the corresponding, true direction. Compass error includes the effect of declination of the compass.
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)