Geography

Geography

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Industry: Geography

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Geography

Great circle route

Geography; Geography

The shortest distance between two places on the Earth's surface. The route follows a line described by the intersection of the surface with an imaginary plane passing through the Earth's center.

Harmonic tremor

Geography; Geography

Continuous rhythmic earthquakes in the Earth's upper lithosphere that can be detected by seismographs. Harmonic tremors often precede or accompany volcanic eruptions.

Glacial till

Geography; Geography

The mass of rocks and finely ground material carried by a glacier, then deposited when the ice melted. This creates an unstratified material of varying composition.

Globe

Geography; Geography

A true-to-scale map of the Earth that duplicates its round shape and correctly represents areas, relative size, and shape of physical features, distances, and directions.