Geomagnetic Micropulsations

Abstract

This paper describes simultaneous observations of geomagnetic micropulsations at three places ranging from 280 S. to 51 0 S. geomagnetic latitude. It is shown that there is no observable change in the micropulsation period with latitude although there is a monotonic increase in the amplitude with latitude for all periods between 10 and 100 sec. The interpretation of these results in terms of existing theories is discussed.