Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 7-Day Trial for You or Your Team.

Learn More →

Parametrization and influence of subgridscale orography in general circulation and numerical weather prediction models

Parametrization and influence of subgridscale orography in general circulation and numerical... The problem of representing the drag due to subgridscale orography is examined. Results from model simulations are used to illustrate clear deficiencies in the global angular momentum budgets and possible ways of correcting for these deficiencies are considered. It is argued that a formulation for the stress due to subgridscale gravity waves is required, as was first recognized by Boer et al. (1984a, b), and the impact of a scheme based on Palmer et al. (1986) is presented. The scheme is improved by using directionally-dependent subgridscale orographic variances. Results from 90-day integrations using the ECMWF and UKMO models with similar resolutions are very much in accord both with and without a wave drag parametrization scheme; showing much improved wintertime circulations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Meteorology and Atmospheric Physics Springer Journals

Parametrization and influence of subgridscale orography in general circulation and numerical weather prediction models

Download PDF
26 pages

Loading next page...
 
/lp/springer-journals/parametrization-and-influence-of-subgridscale-orography-in-general-GbeR0gYR4s

References (23)

Publisher
Springer Journals
Copyright
Copyright © 1989 by Springer-Verlag
Subject
Earth Sciences; Atmospheric Sciences; Meteorology; Math. Appl. in Environmental Science; Terrestrial Pollution; Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution
ISSN
0177-7971
eISSN
1436-5065
DOI
10.1007/BF01027469
Publisher site
See Article on Publisher Site

Abstract

The problem of representing the drag due to subgridscale orography is examined. Results from model simulations are used to illustrate clear deficiencies in the global angular momentum budgets and possible ways of correcting for these deficiencies are considered. It is argued that a formulation for the stress due to subgridscale gravity waves is required, as was first recognized by Boer et al. (1984a, b), and the impact of a scheme based on Palmer et al. (1986) is presented. The scheme is improved by using directionally-dependent subgridscale orographic variances. Results from 90-day integrations using the ECMWF and UKMO models with similar resolutions are very much in accord both with and without a wave drag parametrization scheme; showing much improved wintertime circulations.

Journal

Meteorology and Atmospheric Physics – Springer Journals

Published: Jan 7, 2005

There are no references for this article.