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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 
Clarke's formulae
Earth science; Mapping science
A set of three formulae for the longitude λ, latitude φ and back azimuth A of the normal section (to P o ) at a point P on a rotational ellipsoid, given the longitude λ o and ...
broker
Earth science; Mapping science
An agent who executes orders to buy or sell securities on behalf of a client in exchange for a commission.
bedrock
Earth science; Mapping science
(1) A hard layer of rock covered by soil, sediment, etc. , and more or less continuous over a large region. It is distinguished from silt, clay, etc. , by being hard, and from ...
choropleth
Earth science; Mapping science
A continuous color or shading applied to parts of a map other than those parts bounded by isopleths and indicating quantitatively some characteristic of the region depicted.
mean center of the moon
Earth science; Mapping science
(1) The point at which the Moon's surface is intersected by the lunar radius directed towards the Earth's center when the Moon is at the mean ascending node and the node coincides ...
Ceplecha's method
Earth science; Mapping science
A method of plate reduction developed by Z. Cephlecha and applied to determining the locations of meteors and satellites.
bubble sextant
Earth science; Mapping science
A sextant in which the bubble of a spirit level serves as the horizon. A simple form of bubble sextant was designed by E. E. Byrd and used by him for aerial navigation, on ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)