PubMed · 5437507
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1970-04-18. Environment: not just talk.. https://doi.org/10.1038/226202c0
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This work is based on former investigations describing the similarity between the distribution of MS-frequency and solar particle rays. The analysis of the prevalence values shows clearly that the global MS-frequency is closer related to the geomagnetic than to the geographic latitude. This relation is best described by a Gaussian curve: in temperate latitudes the MS-frequency increases rapidly in pole direction and decreases again in pole-proximity. The MS-distribution shows a spatial relation to the distribution of solar particle rays and geomagnetic activity and to the external radiation belt of the earth. Further considerations are being made including the 11-year-sun-cycle.