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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 
augmetation correction
Earth science; Mapping science
A correction for the effect of augmentation on a measurement, and particularly that correction made to an angular elevation measured with a sextant.
area
Earth science; Mapping science
(1) A numerical measure of the amount of surface contained within a closed curve on a surface. It is usually referred to as the area of the figure if the surface is flat. Area ...
altitude hole
Earth science; Mapping science
The blank region extending from the starting point of the sweep (on a radar's screen) to the point at which the first return from the ground shows.
assumed azimuth
Earth science; Mapping science
An azimuth chosen as a matter of convenience, usually by assigning north south line in a survey as the meridional direction, or by defining an east west line as being at right ...
apparatus
Earth science; Mapping science
A device of considerable complexity, usually composed of several parts that must be assembled before the device can be used.
accuracy
Earth science; Mapping science
(1) The difference (unsigned) between a specified value of a particular quantity and a value that has been accepted as correct for that quantity. When this difference is known ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)