Cover Journal of Applied Meteorology and Climatology
Journal of Applied Meteorology and Climatology
All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 102 92 0
PDF Downloads 7 3 0
Editorial Type:
Article

A Method of Removing Lamb Waves from Initial Data for Primitive Equation Models

Warren M. Washington1 and David P. Baumhefner1
View More View Less
  • 1 National Center for Atmospheric Research, Boulder, Colo. 80303
Print Publication:
01 Feb 1975
DOI:
https://doi.org/10.1175/1520-0450(1975)014<0114:AMORLW>2.0.CO;2
Page(s):
114–119
© Get Permissions Rent on DeepDyve
Restricted access

Abstract

A simple method of reducing the amplitude of Lamb waves in primitive equation model forecasts has been proposed and tested. This method makes use of a Boussinesq-type approximation in which the vertical mean mass divergence is set equal to zero. It effectively reduces the Lamb waves by a factor of 3 in the example shown here and does not degrade the forecast accuracy. The largest reduction in Lamb wave amplitude is found in the tropical regions.

Abstract

A simple method of reducing the amplitude of Lamb waves in primitive equation model forecasts has been proposed and tested. This method makes use of a Boussinesq-type approximation in which the vertical mean mass divergence is set equal to zero. It effectively reduces the Lamb waves by a factor of 3 in the example shown here and does not degrade the forecast accuracy. The largest reduction in Lamb wave amplitude is found in the tropical regions.

Save