The Effect of Solar Activity on the Cosmic Ray Intensity at Solar Minimum
Abstract
In examining the cosmic ray intensity between successive solar minima, it has been noted that the intensity at 1 AU was slightly higher between the 19th and 20th solar cycles (i.e. 1965) and between the 21st and 22nd solar cycles (i.e. 1987) than between the 20th and 21st solar cycles (i.e. 1976). The fact that the galactic cosmic ray intensity in the mid 70's did not return to the levels observed at the other two solar minima is attributed to increased solar activity throughout the 1976 solar minimum period.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 29, 1991
- Accession Number
- ADA235342
Entities
People
- Don F. Smart
- Margaret Shea
Organizations
- Phillips Laboratory