POWER-SPECTRUM ANALYSIS OF ATMOSPHERIC OZONE PARAMETERS

Arthur Adel Arizona State College

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Edward S. Epstein Arizona State College

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Abstract

Power spectra have been computed for three parameters of atmospheric ozone: ERTOR (effective radiation temperature of the ozone region), absorption of solar radiation by ozone in the 9.6-micron band, and total amount of ozone as measured with a Dobson spectraphotometer. Power spectra have been computed also for 700-mb middle-latitude zonal wind, geomagnetic planetary index, and Farthing's “net” index of solar coronal activity. All the spectra of the atmospheric variables exhibit spectral peaks in the vicinity of two and one-half week periods. Additional peaks in several of the ozone spectra suggest a high atmospheric level summertime variation in ozone densities with a period near one and one-half weeks.

Abstract

Power spectra have been computed for three parameters of atmospheric ozone: ERTOR (effective radiation temperature of the ozone region), absorption of solar radiation by ozone in the 9.6-micron band, and total amount of ozone as measured with a Dobson spectraphotometer. Power spectra have been computed also for 700-mb middle-latitude zonal wind, geomagnetic planetary index, and Farthing's “net” index of solar coronal activity. All the spectra of the atmospheric variables exhibit spectral peaks in the vicinity of two and one-half week periods. Additional peaks in several of the ozone spectra suggest a high atmospheric level summertime variation in ozone densities with a period near one and one-half weeks.

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