Absolute velocity: Difference between revisions
From Glossary of Meteorology
imported>Perlwikibot No edit summary |
m (Rewrite with Template:Term and clean up) |
||
| (One intermediate revision by one other user not shown) | |||
| Line 1: | Line 1: | ||
{{Term | |||
|Display title=absolute velocity | |||
{{ | |Definitions={{Definition | ||
{{ | |Num=1 | ||
|Meaning= | |||
[[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. | |||
}} | |||
}} | |||
Latest revision as of 16:08, 7 November 2023
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.
