Vertical coordinate system

From Glossary of Meteorology
Revision as of 19:18, 26 January 2012 by imported>Perlwikibot (Created page with " {{TermHeader}} {{TermSearch}} <div class="termentry"> <div class="term"> == vertical coordinate system == </div> <div class="definition"><div class="short_definition">...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

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.