By downloading data you agree to follow SuperMAG's Rules of the road.
SuperMAG global data are distributed in NetCDF format. Please see the NetCDF website for more details on this format. The files are for the complete day of interest.
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You can also download magnetometer data directly into your application using the SuperMAG Web Service API (IDL, Python, Matlab, and R clients are available). Gridded solutions and High Fidelity one second data are not yet available via Web Services.
SuperMAG is made possible by the generous contribution of data by numerous collaborators. To ensure their continued operation the user must follow the below rules-of-the-road. Data, plots or derived data products are provided under the limitations of "fair use" and cannot be redistributed. Contact the individual instrument PI and the SuperMAG PI for requests that are in conflict with these restrictions.
The user is requested to acknowledge individual collaborators and SuperMAG when original data, derived data, movies, or data products are used in publications and/or presentations.
When Using DataIn all cases:
In cases that only a few stations play a key role and their data are central to the scientific conclusion of the paper:
Lichtenberger J., M. Clilverd, B. Heilig, M. Vellante, J. Manninen, C. Rodger, A. Collier, A. Jørgensen, J. Reda, R. Holzworth, and R. Friedel (2013), The plasmasphere during a space weather event: first results from the PLASMON project, J. Space Weather Space Clim., 3, A23 (www.swsc-journal.org/articles/swsc/pdf/2013/01/swsc120062.pdf).
Collaborator IMAGE ChainTanskanen, E.I. (2009), A comprehensive high-throughput analysis of substorms observed by IMAGE magnetometer network: Years 1993-2003 examined, 114, A05204, doi:10.1029/2008JA013682.
Collaborator MACCSEngebretson, M. J., W. J. Hughes, J. L. Alford, E. Zesta, L. J. Cahill, Jr., R. L. Arnoldy, and G. D. Reeves (1995), Magnetometer array for cusp and cleft studies observations of the spatial extent of broadband ULF magnetic pulsations at cusp/cleft latitudes , J. Geophys. Res., 100, 19371-19386, doi:10.1029/95JA00768.
Collaborator McMAC ChainChi, P. J., M. J. Engebretson, M. B. Moldwin, C. T. Russell, I. R. Mann, M. R. Hairston, M. Reno, J. Goldstein, L. I. Winkler, J. L. Cruz-Abeyro, D.-H. Lee, K.Yumoto, R. Dalrymple, B. Chen, and J. P. Gibson (2013), Sounding of the plasmasphere by Mid-continent MAgnetoseismic Chain magnetometers, J. Geophys. Res. Space Physics, 118, doi:10.1002/jgra.50274.
Collaborator MAGDAS / 210 ChainYumoto, K,. and the CPMN Group (2001), Characteristics of Pi 2 magnetic pulsations observed at the CPMN stations: A review of the STEP results, Earth Planets Space, 53, 981-992.
Collaborator CARISMAMann, I. R., et al. (2008), The upgraded CARISMA magnetometer array in the THEMIS era, Space Sci. Rev., 141, 413–451, doi:10.1007/s11214-008-9457-6.
Collaborator AALPIPClauer, C. R., et al. (2014), An autonomous adaptive low-power instrument platform (AAL-PIP) for remote high-latitude geospace data collection, Geosci. Instrum. Methods Data Syst., 3, 211–227, doi:10.5194/gi-3-211-2014
Collaborator INTERMAGNETLove, J. J., Chulliat, A., (2013), An international network of magnetic observatories, Eos, 94(42), 373-374, doi:10.1002/2013EO420001
SuperMAGGjerloev, J. W. (2012), The SuperMAG data processing technique, J. Geophys. Res., 117 , A09213, doi:10.1029/2012JA017683.
Indices SML, SMU, SMENewell, P. T., and J. W. Gjerloev (2011), Evaluation of SuperMAG auroral electrojet indices as indicators of substorms and auroral power, J. Geophys. Res., 116, A12211, doi:10.1029/2011JA016779.
Indices SMLs, SMLd, SMUs, SMUdGjerloev, J. W., R. A. Hoffman, S. Ohtani, J. Weygand, and R. Barnes, Response of the Auroral Electrojet Indices to Abrupt Southward IMF Turnings (2010), Annales Geophysicae, 28, 1167-1182.
Indices SME-LT, SMU-LT, SML-LTNewell, P. T., and J. W. Gjerloev (2014), Local geomagnetic indices and the prediction of auroral power, J. Geophys. Res. Space Physics, 119, doi:10.1002/2014JA020524.
Indices SMR, SMR-LTNewell, P. T. and J. W. Gjerloev (2012), SuperMAG-Based Partial Ring Current Indices, J. Geophys. Res., 117, doi:10.1029/2012JA017586.
Substorm ListForsyth, C., Rae, I. J., Coxon, J. C., Freeman, M. P., Jackman, C. M., Gjerloev, J., and Fazakerley, A. N. ( 2015), A new technique for determining Substorm Onsets and Phases from Indices of the Electrojet (SOPHIE), J. Geophys. Res. Space Physics, 120, 10,592– 10,606, doi:10.1002/2015JA021343.
Frey, H. U., Mende, S. B., Angelopoulos, V., and Donovan, E. F. (2004), Substorm onset observations by IMAGE‐FUV, J. Geophys. Res., 109, A10304, doi:10.1029/2004JA010607.
Gjerloev, J. W. (2012), The SuperMAG data processing technique, J. Geophys. Res., 117, A09213, doi:10.1029/2012JA017683.
Liou, K. (2010), Polar Ultraviolet Imager observation of auroral breakup, J. Geophys. Res., 115, A12219, doi:10.1029/2010JA015578.
Newell, P. T., and J. W. Gjerloev (2011), Evaluation of SuperMAG auroral electrojet indices as indicators of substorms and auroral power, J. Geophys. Res., 116, A12211, doi:10.1029/2011JA016779.
Newell, P. T., and J. W. Gjerloev (2011), Substorm and magnetosphere characteristic scales inferred from the SuperMAG auroral electrojet indices, J. Geophys. Res., 116, A12232, doi:10.1029/2011JA016936.
Ohtani, S., and J. Gjerloev, Is the Substorm Current Wedge an Ensemble of Wedgelets?: Revisit to Midlatitude Positive Bays, accepted, J. Geophys. Res, 2020.
Polar plots of ground level magnetic field perturbations. Vectors are deduced from the two horizontal components and can be displayed in two ways:
SuperMAG Coordinate system and baseline
The uniformly gridded data are derived from statistical-based method which combines with basis function expansion techniques (Waters et al., 2015) to provide extensive maps of the ground level perturbation magnetic field from 40° magnetic latitude to the magnetic pole for all longitudes. The method combines all available data from the SuperMAG data base, Principal Component Analysis, and a spherical cap harmonic basis function expansion in order to fill in magnetic perturbation data where there are no magnetometers and produce the poloidal current potential. The final uniform solutions are derived from measured perturbations and the fill-in (model) vectors. On the website are shown the measured perturbations and the final fitted solutions. The fill-in (model) vectors are not shown. Download gridded solutions here including:
Waters, C. L., J. W. Gjerloev, M. Dupont, and R. J. Barnes (2015), Global maps of ground magnetometer data, J. Geophys. Res. Space Physics, 120,doi:10.1002/2015JA021596
ULF data products are derived from the 1-sec magnetometer data provided by the SuperMAG collaborators. If you use the ULF data products in publications and/or presentations please clearly indicate that these are SuperMAG derived ULF data.
SuperMAG includes Auroral Images from the IMAGE Far Ultraviolet Image and Polar Visible Imaging System (VIS).
The foot points of the NASA Van Allen Probes spacecraft and the ESA SWARM spacecraft are included in the polar plots.
The instantaneous position of the NASA Van Allen Probes are marked by circles on the plot. The orbit track shows the last six (6) hours, marked with arrows at hourly intervals pointing in the direction the spacecraft is moving. The track for Van Allen Probe A is shown in red, Van Allen Probe B is shown in blue.
The foot point is calculated by tracing from the spacecraft location to the ground along a magnetic field line. The magnetic field model is the Olsen-Pfitzer 1997 Quiet time model.
The instantaneous position of the ESA SWARM spacecraft are marked by triangles on the plot.SWARM A is shown in red, SWARM B in green, and SWARM C in blue.
SuperMAG gratefully acknowledges the assistance of the NASA Van Allen Probes Mission and the ESA Swarm Mission for the use of these spacecraft ephemerides.
Solar Wind data has been propagated to the front of the magnetosphere (courtesy Dr. James Weygand) using the pseudo-minimum variance technique of Dan Weimer et al. [2003; 2004].
You must login to download plots and derived parameters.
The full SuperMAG magnetometer data set is available for download from the Large Data Downloads page.
You can also download gridded solutions directly into your application using the SuperMAG Web Service API (IDL/Python clients available).