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 > Oceanography

diurnal tide

Earth science; Oceanography

A tide in which there is only one high water and one low water each lunar day .

buoyancy frequency

Earth science; Oceanography

In a continuously stratified fluid, the buoyancy frequency is the natural frequency of vertical oscillation of fluid parcels. Explicitly the squared buoyancy frequency is N^2 ...

eddy viscosity

Earth science; Oceanography

An approximation to turbulent flow whereby the net effect of molecular diffusion enhanced by strain flows between eddies is parametrized by an eddy viscosity acting on large scale ...

bathymetric chart

Earth science; Oceanography

A map delineating the form of the bottom of a body of water, usually be means of depth contours ( isobaths ).

drainage basin

Earth science; Oceanography

A land area where precipitation runs off into streams, rivers, lakes, and reservoirs. It is a land feature that can be identified by tracing a line along the highest elevations ...

coriolis force

Earth science; Oceanography

An apparent force arising from the fact that Earth turns on its axis. It is an apparent force that makes sense only because Earth is a noninertial frame of reference. Earth's ...