User-defined IMAGE magnetograms

More user-friendly version available

Fill in the form below to get magnetograms as JPG plots and PostScript files. You may use the plots for scientific purposes according to the rules of the road.

Pre-stored daily X-component magnetograms
Data requests in different formats

Equivalent currents
IMAGE electrojet indicators (IU, IL, IE)

• To define a station list yourself, type in the text box 3-letter codes separated by a blanko, e.g. NUR HAN OUJ. Abbreviations are listed in a table of the IMAGE stations.
• Station are automatically ordered from north (up) to south (down). However, if you type your own list then the first site is plotted up and the last down.
• Fennoscandia = all available stations in the continental part of IMAGE.
• Svalbard = BJN, HOP, HOR, LYR, NAL (since October 1993).
• TAR-SOR = meridional chain TAR-NUR-HAN-OUJ-PEL-MUO-MAS-SOR (TAR since September 2001).
• TAR-NAL = meridional chain TAR-NUR-HAN-OUJ-PEL-MUO-MAS-SOR-BJN-HOR-LYR-NAL.
• To get the EISCAT magnetometer sites (until summer 1991), select all.

• Geographical components are used: X (north), Y (east), Z (downwards).
• One minute average values are used.
• Data availability charts are updated manually. So newer data may be available than shown on them.

• The default scaling is not always convenient. Change it by typing a new value (>0) in the corresponding box.

Updated: 16.9.2011

CGI programming: Anneli Ketola
Data reading routines: Lasse Häkkinen
Comments and bug reports to Ari Viljanen (AV)