Algunas características de las variaciones magnéticas observadas en las provincias de Buenos Aires y Chubut

Abstract

The studies of magnetic diurnal variation at the stations in Buenos Aires Province (Morea and Las Acacias) and those of the Magnetic Observatory of Trelew, Chubut Province, Argentina, are presented. To show the situation of Argentine stations relatively to other ones, the world map and the list of observatories, both for the system of geomagnetic coordinates, are added* The variations of Trelew Observatory for 1958 are presented by graphs and the Sq — H is analyzed harmonically. The geographical situation of this observatory, in relation to the vortex route of electrical currents, gives interesting features, which can be seen from two-maximums’ Sq - H curves on different months of a year and from the results of harmonic analysis.