Difference between revisions of "Vertical coordinate system"

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<div class="definition"><div class="short_definition">The system used to define the [[finite-difference approximation]] applied  in the direction roughly perpendicular to the earth's surface in a numerical [[model]].</div><br/> <div class="paragraph">The most obvious example is the use of geometric height; however, there are numerical or  physical advantages to many other vertical coordinate systems. For example, a &ldquo;terrain following&rdquo; vertical coordinate system is one with a lowest [[coordinate surface]] that follows the terrain. <br/>''See''  [[sigma vertical coordinate]], [[eta vertical coordinate]], [[hybrid vertical coordinate]], [[isentropic vertical  coordinate]], [[pressure vertical coordinates]].</div><br/> </div>
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<div class="definition"><div class="short_definition">The system used to define the [[finite-difference approximation]] applied  in the direction roughly perpendicular to the earth's surface in a numerical [[model]].</div><br/> <div class="paragraph">The most obvious example is the use of geometric height; however, there are numerical or  physical advantages to many other vertical coordinate systems. For example, a "terrain following" vertical coordinate system is one with a lowest [[coordinate surface]] that follows the terrain. <br/>''See''  [[sigma vertical coordinate]], [[eta vertical coordinate]], [[hybrid vertical coordinate]], [[isentropic vertical  coordinate]], [[pressure vertical coordinates]].</div><br/> </div>
 
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Revision as of 16:25, 20 February 2012



vertical coordinate system

The system used to define the finite-difference approximation applied in the direction roughly perpendicular to the earth's surface in a numerical model.

The most obvious example is the use of geometric height; however, there are numerical or physical advantages to many other vertical coordinate systems. For example, a "terrain following" vertical coordinate system is one with a lowest coordinate surface that follows the terrain.
See sigma vertical coordinate, eta vertical coordinate, hybrid vertical coordinate, isentropic vertical coordinate, pressure vertical coordinates.


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