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Study of Atmospheric Behavior Using A Quasi-Geostrophic, Diabatic, Two-Level Model

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  • 1 U.S. Navy Weather Research Facility, Norfolk, Va.
  • | 2 Research Triangle Institute, Research Triangle Park, N.C.
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Abstract

A simple two-level model was used to explore the effect of diabatic heating in the atmosphere. Non-trivial solutions for the steady-state condition were found only when diabatic heating was allowed. The steady state was characterized by a state of no motion and no growth or decay of energy for a particular wave number. The state of no motion was brought about by a balance between the Rossby motion and the motion produced by the divergence associated with the heating.

The model was used to compute the heating required to account for the observed behavior of individual harmonic components in the atmosphere for the period Jan. 10–14, 1966. The computed magnitudes and positions of the heating waves correlated well with previous results relating to this subject.

Now affiliated with the Center for Experiment Design and Data Analysis, NOAA, Rockville, Md.

Now affiliated with Old Dominion University, Norfolk, Va.

Abstract

A simple two-level model was used to explore the effect of diabatic heating in the atmosphere. Non-trivial solutions for the steady-state condition were found only when diabatic heating was allowed. The steady state was characterized by a state of no motion and no growth or decay of energy for a particular wave number. The state of no motion was brought about by a balance between the Rossby motion and the motion produced by the divergence associated with the heating.

The model was used to compute the heating required to account for the observed behavior of individual harmonic components in the atmosphere for the period Jan. 10–14, 1966. The computed magnitudes and positions of the heating waves correlated well with previous results relating to this subject.

Now affiliated with the Center for Experiment Design and Data Analysis, NOAA, Rockville, Md.

Now affiliated with Old Dominion University, Norfolk, Va.

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