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

cross-track error

Earth science; Mapping science

That component, of the difference between the location of a satellite's location as computed from theory and the location estimated from observations by the method of least ...

alluvial fan

Earth science; Mapping science

A fan consisting of silt and other fine material deposited by a stream or river at its mouth or where the slope of the bed abruptly becomes less.

spheroidal excess

Earth science; Mapping science

The amount by which the sum of the three angles of a spheroidal triangle exceeds 180 o . In geodesy, spherical angles are used instead of spheroidal angles; the difference ...

observed error

Earth science; Mapping science

(1) The average value of a random quantity minus a particular value of a measurement of that quantity. (2) The average value of a set of random values, minus the average value of ...

physiographic feature

Earth science; Mapping science

A prominent or conspicuous physiographic landform or a salient part thereof.

extrapolation

Earth science; Mapping science

The process of estimating the value of a function at a specified point outside a certain region, from known values of the function at points within that region. Sometimes called ...