Computer Science
Scientific paper
Dec 1970
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970p%26ss...18.1719d&link_type=abstract
Planetary and Space Science, Volume 18, Issue 12, p. 1719-1728.
Computer Science
1
Scientific paper
Power spectrum estimates are computed for cosmic ray and pressure variations in the frequency range of 1.6 × 10-6 to 4.15 × 10-3 c/sec for three data sets each of 27 days length (2 min interval) recorded at Chacaltaya (Bolivia) during 1965-1966. The general trend of these spectra showy ƒ;-α fit having exponent values from -1.5 to -1.9 for L.F. side. From the semi-diurnal peaks both in cosmic rays and pressure, the average value of pressure coefficient is found to be 0.3 per cent/mm of Hg. For the same three sets of data, a detailed analysis of cross-spectrum, coherence and phase relationship between cosmic rays and pressure is carried out in the frequency range of 1-12 c/day. Besides semi-diurnal peak, variations of 3, 4, 7 and 8 c/day are found to be common both in cosmic rays and pressure. The value of pressure coefficient and residual amplitude of cosmic rays for these particular frequencies are calculated.
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