The effects of fluctuations and noise on the neutron monitor diurnal anisotropy, 2. Non-field-aligned diffusion
Article first published online: 20 SEP 2012
Copyright 1977 by the American Geophysical Union.
Journal of Geophysical Research
Volume 82, Issue 35, pages 5551–5554, 1 December 1977
How to Cite
1977), The effects of fluctuations and noise on the neutron monitor diurnal anisotropy, 2. Non-field-aligned diffusion, J. Geophys. Res., 82(35), 5551–5554, doi:10.1029/JA082i035p05551.(
- Issue published online: 20 SEP 2012
- Article first published online: 20 SEP 2012
- Manuscript Accepted: 26 JUL 1977
- Manuscript Received: 26 OCT 1976
The effects of non-field-aligned diffusion (i. e., terms in the diffusion tensor proportional to the antisymmetric coefficient κA) on the observed day-to-day deviation of the diffusive diurnal anisotropy from the daily average magnetic field direction are considered. Using reasonable parameters for the diffusion of cosmic rays in interplanetary space, I show that these terms give a natural explanation for the angular difference between the anisotropy and field directions during normal quiet interplanetary epochs.