Surface Pressure Variations in Polar Regions

Ralph Shapiro Air Force Cambridge Research Laboratories, Bedford Mass.

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Harold L. Stolov The City College of the City University Of New York

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Abstract

Power and cross-power spectra involving the daily average station pressure at arctic and antarctic stations along with various measures of solar variability, such as fmin, riometer data, and Kp, failed to reveal any associations between solar particle emission and the surface pressure in polar legions. However, a small but apparently real, coherent variation in surface pressure exists between the two polar regions. This oscillation with period somewhat greater than 60 days is almost exactly 180° out of phase between the two polar regions, indicating a more or less direct exchange of mass between the arctic and antarctic.

Abstract

Power and cross-power spectra involving the daily average station pressure at arctic and antarctic stations along with various measures of solar variability, such as fmin, riometer data, and Kp, failed to reveal any associations between solar particle emission and the surface pressure in polar legions. However, a small but apparently real, coherent variation in surface pressure exists between the two polar regions. This oscillation with period somewhat greater than 60 days is almost exactly 180° out of phase between the two polar regions, indicating a more or less direct exchange of mass between the arctic and antarctic.

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