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Cosmic ray modulation produced by radial density gradients in the interplanetary medium

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Abstract

A new technique for the calculation of cosmic ray daily variations, given the radial number density gradient, is introduced. The technique is applied to selected gradients to account for the average, enhanced and asymmetrical diurnal variations and different Forbush decrease profiles. A small semidiurnal variation is predicted and it is concluded that the profiles of Forbush decreases are strongly dependent on the radial approach velocity of the shock.

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Authors and Affiliations

  1. Physics Department, University of Adelaide, South Australia

    L. R. Barnden

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  1. L. R. Barnden
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Barnden, L.R. Cosmic ray modulation produced by radial density gradients in the interplanetary medium. Sol Phys 18, 165–171 (1971). https://doi.org/10.1007/BF00146041

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  • DOI: https://doi.org/10.1007/BF00146041

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