Absolute velocity: Difference between revisions
From Glossary of Meteorology
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|Display title=absolute velocity | |||
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[[velocity|Velocity]] as measured in an [[absolute coordinate system]]; hence, in meteorology, the ([[vector]]) sum of the velocity of a [[fluid parcel]] relative to the earth and the velocity of the parcel due to the earth's rotation.<br/> The east–west component is the only one affected: <blockquote>[[File:ams2001glos-Ae3.gif|link=|center|ams2001glos-Ae3]]</blockquote> where ''u'' and ''u''<sub>''a''</sub> are the relative and absolute eastward speeds, Ω the angular speed of the earth's rotation, ''r'' the radial distance of the parcel from the center of the earth, and φ the latitude of the parcel. | |||
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Latest revision as of 21:05, 27 March 2024
Velocity as measured in an absolute coordinate system; hence, in meteorology, the (vector) sum of the velocity of a fluid parcel relative to the earth and the velocity of the parcel due to the earth's rotation.
The east–west component is the only one affected:
The east–west component is the only one affected:
where u and ua are the relative and absolute eastward speeds, Ω the angular speed of the earth's rotation, r the radial distance of the parcel from the center of the earth, and φ the latitude of the parcel.
