Earth science

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

local datum

Earth science; Mapping science

A datum defining a coordinate system which is used only over a region of very limited extent.

found corner

Earth science; Mapping science

(1) A corner (a) of which the original or restored monument or mark is recovered, or (b) the location of which was definitely established by one or more witness corners or ...

current pole

Earth science; Mapping science

A pole used in measuring the velocity of the current.

generalized spherical coordinate

Earth science; Mapping science

One of a set of N coordinates, in N dimensional space, consisting of a distance r, and azimuth θ, and N-2 latitude like angles φ1, φ2, φ3, . . . φN-2. If the rectangular, ...

Conrad discontinuity

Earth science; Mapping science

A region, at depths of 17 to 20 km under some parts of the continents, in which the speed of seismic P waves increases abruptly from about 6. 2 km/s to about 6. 6 km/s. Unlike ...

current income

Earth science; Mapping science

A return objective in which the investor seeks to generate income rather than capital gains; generally a goal of an investor who wants to supplement earnings with income to meet ...