Prediction of the geomagnetic K index based on its previous value. Geophysica

• Main Authors: Ari Viljanen, Antti Pulkkinen, Risto Pirjola
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2008
• Subjects: Sodankylä
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.573.4975; http://www.geophysica.fi/pdf/geophysica_2008_44_1-2_003_viljanen.pdf

The statistical behaviour of the geomagnetic K index is studied at two observatories in Finland: Nurmijärvi in the subauroral region and Sodankylä near the auroral region. Using data of 19532006, we show that the present K index can be used as a proxy for predicting the future indices. Especially, t...