Observation of pronounced isotropic variations of cosmic ray intensity during August–September 1979
D Venkatesan, K Volk… - Journal of Geophysical …, 1981 - Wiley Online Library
A study of the cosmic ray intensity data from high‐latitude stations reveals an isotropic
variation of∼ 30‐day periodicity and a peak‐to‐peak amplitude of 10% during the two …
variation of∼ 30‐day periodicity and a peak‐to‐peak amplitude of 10% during the two …