Articles | Volume 13, issue 5
https://doi.org/10.5194/essd-13-1987-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.Historical K index data collection of Soviet magnetic observatories, 1957–1992
Data sets
Historical K index data collection of Soviet magnetic observatories, 1957-1992 https://doi.org/10.1594/PANGAEA.922233
Digital Images of Magnetograms http://www.wdcb.ru/stp/geomag/magnetogr_list.en.html
K and C indices according to the data of 40 observatories of Russia and the CIS countries and stations ``North Pole'' http://www.wdcb.ru/stp/data/K_indices/