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Ionosonde Data

Data in our data server are updated daily, except on holidays and weekends.

Check which date is latest
as a plot (GIF) as a table (plain text)
Select data type & date and press 'Show' button:
Daily data as a plot (1995 -) as a text table (1995 -)
Monthly data: Data bulletin (1993/08 -)
Monthly medians: as a plot (1957/08 as a text table (1957/08 -)
  as a plot of 4 years (1957 - 1992) as one plot (1957 - 1992)
Enter date as yyyy-mm-dd:
or Select: Year: Month: Day:

NOTE: Our data are available free of charge for scientific and educational purposes. If our data are used for scientific publications, we require you to contact us in order to discuss under which conditions our data can be published, i.e. whether an acknowledgment of the Sodankylä Geophysical Observatory in your paper is sufficient or whether we require co-authorship. For detailed access to additional data, please contact our office or the observer in charge.
See the detailed data licence.

Last modified: 28 August 2015, 11:29:08.