LIBROS DEL AUTOR: ariel o acebal

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  • Testing of the New USGS K Index Algorithm at Bear Lake Observatory
    Ariel O. Acebal
    The K index was developed by Bartels in 1939 as an estimate of the level of geomagnetic activity caused by the Sun. This index was computed manually every three hours at geomagnetic observatories using the magnetic traces of the surface planetary magnetic field. In 1991, the International Association of Geomagnetism and Aeronomy approved four additional methods to compute the K...
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