Choose a radar from the drop down list to view the quantity of data for a given month in the calendar. The radars are ordered first with SuperDARN Canada radars, then the remaining northern hemisphere radars, followed by the southern hemisphere radars. The colorbar below is adaptive, so if you view the overview of years or months in a given year the highest value will scale. However each month showing individual days is comparable. In addition, each day can be clicked to give an overview of the size of the 2 hour files below the calendar. Days with no data may currently be block listed, and are not currently included in this tool. FITACF 2.5 Data from SuperDARN Canada radars can be downloaded using our data downloading tool, for other radars see our data products information page for more information.
Borealis data is currently unavailable.
The amount of data in a given file can be loosely correlated to the 'activity' of the ionosphere at that time. Hence, files with a large amount of ionospheric backscattered data indicate that the ionosphere can be considered 'active'. Please note that ground scatter is still included in the total file size, so the correlation should be taken as an indication, not a definitive measure of activity. In addition, some radars may change operation between 15km and 45km range gates, and as such when the former is used the data files will be larger in size.
The Super Dual Auroral Radar Network (SuperDARN) is a made up of 36 radars and 20 institutions, to cite general SuperDARN you can use:
Greenwald, R.A., Baker, K.B., Dudeney, J.R. et al. Space Sci Rev (1995) 71: 761. doi:10.1007/BF00751350
For the general achievements of the SuperDARN Network, you can read these papers:
Chisham, G., Lester, M., Milan, S.E. et al. A decade of the Super Dual Auroral Radar Network (SuperDARN): scientific achievements, new techniques and future directions. Surv Geophys 28, 33–109 (2007) doi:10.1007/s10712-007-9017-8
Nishitani, N., Ruohoniemi, J.M., Lester, M. et al. Review of the accomplishments of mid-latitude Super Dual Auroral Radar Network (SuperDARN) HF radars. Prog Earth Planet Sci 6, 27 (2019) doi:10.1186/s40645-019-0270-5
During your study, if using data from individual radars only, please contact the Principal Investigator (PI) of that radar about potential co-authorship. A list of radars, institutions, and their PI's information can be found here.
For SuperDARN Canada managed radars (Saskatoon, Rankin Inlet, Inuvik, Clyde River, and Prince George), contact Dr. Kathryn McWilliams of the University of Saskatchewan.