On a certain type of integration error in numerical weather prediction models

Author:

Økland, Hans.

Title:

On a certain type of integration error in numerical weather prediction models / Hans Økland.

Format:

Book

Published:

Suitland, Md. : U.S. Dept. of Commerce, Environmental Science Services Administration, Weather Bureau, 1969.

Language:

English

Description:

23 p. : ill. ; 27 cm.

Other contributors:

National Meteorological Center (U.S.)

Portion of title:

Integration error in numerical weather prediction models

Series:

ESSA technical memorandum WBTM NMC ; 45

Notes:

"September 1969." Includes bibliographical references (p. 17).

Summary:

"Certain truncation errors occur in numerical weather prediction models when a grid-point representation of the variables is used to simulate advection phenomena. The errors are manifest by excessive values of the variables and upstream propagation of small-scale noise. The mechanism causing these errors is studied by numerical experiments and harmonic analysis. Several ways to avoid or prevent errors of this kind are cited. Inclusion of a horizontal diffusion term in the scheme may be necessary to remove the errors completely."

Subject headings:

Numerical weather forecasting--United States. Meteorology--United States--Mathematics. Weather forecasting--United States--Mathematical models. Synoptic meteorology--United States. Numerical analysis. Error analysis (Mathematics) Integration, Functional.