Service International des Indices Géomagnétiques
International Service of Geomagnetic Indices

Softwares

Source files for different K-indice derivation algorithms

FMI-method for K-indices computation
provided by L. Hakkinen, Finnish Meteorolical Institute, Finland

Hermanus algorithm, using the linear-phase robust non-linear smoothing method (LRNS)
provided by M Hattingh of the Hermanus Magnetic Observatory, CISR, South Africa

KASM method for K-indices computation (algorithm using the adaptative smoothing method)
provided bu Tomascz Ernst of the Institute of Geophysics, Polish Academy of Science

USGS method for K-indices computation
provided by Lanny Wilson, USGS, USA