ZONAL-INDEX TENDENCY EQUATION AND ITS APPLICATION TO FORECASTS OF THE ZONAL INDEX

1 April 1952

journal article
Published by American Meteorological Society in Journal of Meteorology

Vol. 9 (2) , 87-92
https://doi.org/10.1175/1520-0469(1952)009<0087:ziteai>2.0.co;2

Abstract

An equation is derived relating the rate of change of the integrated zonal-index to the poleward angular-momentum flux convergence. The validity of the equation and its utility in forecasting the zonal-index change are checked against observed cases, with good results. For the simple harmonic case, the equation is integrated and the solution compared with an observed example.

Keywords

ANGULAR MOMENTUM
DERIVED RELATING
EQUATION IS INTEGRATED
FORECASTS
INDEX TENDENCY
TENDENCY EQUATION
ZONAL INDEX

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