Static initialization of primitive equation models on a bounded, extratropical region

Trond Iversen; Thor Erik Nordeng

doi:10.3402/tellusa.v36i1.11462

Static initialization of primitive equation models on a bounded, extratropical region

Tellus

Volume 36 (1984): Issue 1

By: Trond Iversen and Thor Erik Nordeng

Open Access

|Jan 1984

Abstract

Two filtered models (FM) are studied for their properties in providing initial data for primitive equation models (PEM) solved on a bounded, extratropical region. The methods are tested on actual data, and topography and friction are included. The results suggest that filtered models are powerful tools for suppressing gravity-inertia waves in the primitive equation models in cases where the horizontal normal modes are difficult to find. Inconsistencies between the initialization method and the prognostic model regarding vertical, finite differences and horizontal approximations at the lateral boundaries, may give rise to low-frequency “noise”. Inconsistent horizontal, finite differences chiefly give rise to high-frequency “noise” that can be removed by a time filtering technique.

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Articles in this issue

DOI: https://doi.org/10.3402/tellusa.v36i1.11462 | Journal eISSN: 3035-9554

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Language: English

Page range: 21 - 29

Submitted on: May 5, 1982

Accepted on: Mar 16, 1983

Published on: Jan 1, 1984

Published by: Stockholm University Press

In partnership with: Paradigm Publishing Services

© 1984 Trond Iversen, Thor Erik Nordeng, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 36 (1984): Issue 1