Relation of Atmosphere Surface Pressure Fluctuations with Geomagnetic and Cosmic Factors

Details Relation of Atmosphere Surface Pressure Fluctuations with Geomagnetic and Cosmic Factors Relation of Atmosphere Surface Pressure Fluctuations with Geomagnetic and Cosmic Factors

2003-05-16

arxiv.org/abs/physics/0305071v1

Physics

Atmospheric and Oceanic Physics

5 pages, LaTeX. Presented at VI International Telecommunicational Conference "Youth and Science", Oct 10 - Dec 20, 2002, Mosco

Scientific paper

We present results of the digital spectral analysis of the time series containing the daily samples of the atmosphere surface pressure measured at Saratov city from Jan 1, 1995 to Dec 31, 1999. We calculated also cross correlation functions between the pressure fluctuations and the planetary geomagnetic indices, Ap and Cp, and cross correlation function between these fluctuations and the cosmic-ray intensity. Two peaks detected in the calculated power spectrum are related, probably, with the atmosphere tidal waves. The relation of the pressure fluctuations with the Ap index of the geomagnetic activity is statistically insignificant. The cross correlation function between the pressure fluctuations and the Cp index has the maximal value 0.044+-0.023 at the pressure time delay 4 days. The statistically significant negative correlation is discovered between the surface pressure fluctuations and the cosmic-ray intensity. The cross correlation function has two minima: at the zero time delay with the value -0.068+-0.023, and at the pressure time delay 12 days with the value -0.087+-0.023. The negative correlation between the pressure and the cosmic-ray intensity is observed at the pressure time delay as long as 17 days and can be explained by the so-called condensation mechanism of an interaction of the cosmic rays with the atmosphere.

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