A numerical investigation of the long-term transient behavior in a coupled atmosphere-ocean model.
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Authors
Lambertson, Wayne Roger
Subjects
numerical investigation
long-term integration
transient behavior
coupled atmosphere-ocean model
spectrum analysis
two-level, quasi-geostrophic atmospheric model
three-level, primitive equation ocean model
long-period oscillations
long-term integration
transient behavior
coupled atmosphere-ocean model
spectrum analysis
two-level, quasi-geostrophic atmospheric model
three-level, primitive equation ocean model
long-period oscillations
Advisors
Williams, R.T.
Date of Issue
1972-09
Date
September 1972
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
A two-level, quasi-geos trophic atmospheric model on a
mid-latitude ß-plane with a single wave in the x-direction
was coupled with a three level primitive equation ocean
model through the exchange of sensible heat and momentum
to investigate the effect of the ocean circulation on transients
in the atmospheric circulation and vice versa. A
long-term (79 years) simulation of the atmosphere-ocean
system was carried out. The experiment was conducted in
three phases that consisted of integrating the combined,
the ocean-only and the atmosphere-only model equations.
The combined model produced realistic patterns of both
atmospheric and oceanic circulations. Energy studies of
the atmosphere were completed with the results comparing
favorably with the existing knowledge of the energy balance
in the real atmosphere.
Data were retained at selected points on a daily basis
and spectrally analyzed for a simulated six year period.
Transients with periods on the order of one and two months
appeared in the spectra of both atmospheric and oceanic
variables from the combined model. These transients were
not observed in the ocean-only or atmosphere-only phases of
the experiment, and are attributed to the interaction occur
ring in the combined model.
Type
Thesis
Description
Series/Report No
Department
Meteorology
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.