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Testing of the New USGS K Index Algorithm at Bear Lake Observatory

Testing of the New USGS K Index Algorithm at Bear Lake Observatory

Paperback

General EducationPhysics

ISBN10: 1249830222
ISBN13: 9781249830221
Publisher: Biblioscholar
Published: Oct 17 2012
Pages: 124
Weight: 0.41
Height: 0.26 Width: 6.14 Depth: 9.21
Language: English

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 index; all of them were computer algorithms. One of the approved methods, the Wilson code, recently underwent some modifications. The new algorithm is now part of a Windows-based computer program being developed by the United States Geological Survey (USGS).

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