Oceanography

Oceanography

The scientific studies of the ocean.

Industry: Earth science

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Oceanography

Littoral

Earth science; Oceanography

The beach, the space between high and low tide marks, or water a little below low water mark.

Mean sea level

Earth science; Oceanography

The average level of the sea over a period of time, taking into account periodic changes due to tides and other fluctuations (such as wind waves).

Stratopause

Earth science; Oceanography

The boundary between the stratosphere and the mesosphere. It occurs at an atmosphere height of approximately 50 km; however this depends on latitude. The atmosphere is characterised by a decrease ...

Mesosphere

Earth science; Oceanography

The atmospheric shell in which temperature generally decreases with heights that extend from the stratopause at about 50-55 km to the mesopause at about 80-85 km. Compare to stratosphere and ...

The boundary between the troposphere and stratosphere, usually characterised by an abrupt change of lapse rate. The change is in the direction of increased atmospheric stability from regions below ...

Hydrodynamic instability

Earth science; Oceanography

The development of an infinitessimal disturbance in a mean flow field that grows by drawing energy from the mean flow.

Peru current

Earth science; Oceanography

The cold ocean current flowing north along the coasts of Chile and Peru. It is one of the swiftest of ocean currents. The Peru current originates where part of the water that flows toward the east ...