Hydrostatic model

From Glossary of Meteorology
Revision as of 17:16, 26 January 2012 by imported>Perlwikibot (Created page with " {{TermHeader}} {{TermSearch}} <div class="termentry"> <div class="term"> == hydrostatic model == </div> <div class="definition"><div class="short_definition">An [[atmo...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

hydrostatic model

An atmospheric model in which the hydrostatic approximation replaces the vertical momentum equation.

This implies that vertical acceleration is negligible compared to vertical pressure gradients and vertical buoyancy forces, a good approximation for synoptic and subsynoptic scales of motion. Hydrostatic models have been successfully applied with horizontal resolutions as small as about 10 km, resolving even some mesoscale circulations. Global and regional weather prediction models have traditionally been hydrostatic models.

Copyright 2022 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact permissions@ametsoc.org. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.