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SWMF Global Magnetosphere Simulations of January 2005: Geomagnetic Indices and Cross‐Polar Cap Potential
dc.contributor.authorHaiducek, John D.
dc.contributor.authorWelling, Daniel T.
dc.contributor.authorGanushkina, Natalia Y.
dc.contributor.authorMorley, Steven K.
dc.contributor.authorOzturk, Dogacan Su
dc.date.accessioned2018-02-05T16:32:51Z
dc.date.available2019-01-07T18:34:38Zen
dc.date.issued2017-12
dc.identifier.citationHaiducek, John D.; Welling, Daniel T.; Ganushkina, Natalia Y.; Morley, Steven K.; Ozturk, Dogacan Su (2017). "SWMF Global Magnetosphere Simulations of January 2005: Geomagnetic Indices and Cross‐Polar Cap Potential." Space Weather 15(12): 1567-1587.
dc.identifier.issn1542-7390
dc.identifier.issn1542-7390
dc.identifier.urihttps://hdl.handle.net/2027.42/141399
dc.description.abstractWe simulated the entire month of January 2005 using the Space Weather Modeling Framework (SWMF) with observed solar wind data as input. We conducted this simulation with and without an inner magnetosphere model and tested two different grid resolutions. We evaluated the model’s accuracy in predicting Kp, SYM‐H, AL, and cross‐polar cap potential (CPCP). We find that the model does an excellent job of predicting the SYM‐H index, with a root‐mean‐square error (RMSE) of 17–18 nT. Kp is predicted well during storm time conditions but overpredicted during quiet times by a margin of 1 to 1.7 Kp units. AL is predicted reasonably well on average, with an RMSE of 230–270 nT. However, the model reaches the largest negative AL values significantly less often than the observations. The model tended to overpredict CPCP, with RMSE values on the order of 46–48 kV. We found the results to be insensitive to grid resolution, with the exception of the rate of occurrence for strongly negative AL values. The use of the inner magnetosphere component, however, affected results significantly, with all quantities except CPCP improved notably when the inner magnetosphere model was on.Key PointsIncreasing grid resolution from that used by SWPC improves AL prediction during disturbances but has little effect on Kp, SYM‐H, or CPCPThe model does an excellent job at predicting SYM‐H but less well in predicting ALSWMF tends to overpredict Kp and CPCP during quiet times but predicts those quantities better during active times
dc.publisherButterworth‐Heinemann
dc.publisherWiley Periodicals, Inc.
dc.subject.othergeomagnetic indices
dc.subject.othervalidation
dc.subject.othermagnetosphere
dc.subject.othermetrics
dc.subject.otherMHD
dc.titleSWMF Global Magnetosphere Simulations of January 2005: Geomagnetic Indices and Cross‐Polar Cap Potential
dc.typeArticleen_US
dc.rights.robotsIndexNoFollow
dc.subject.hlbsecondlevelElectrical Engineering
dc.subject.hlbtoplevelEngineering
dc.description.peerreviewedPeer Reviewed
dc.description.bitstreamurlhttps://deepblue.lib.umich.edu/bitstream/2027.42/141399/1/swe20534_am.pdf
dc.description.bitstreamurlhttps://deepblue.lib.umich.edu/bitstream/2027.42/141399/2/swe20534.pdf
dc.description.bitstreamurlhttps://deepblue.lib.umich.edu/bitstream/2027.42/141399/3/swe20534-sup-0001-supplementary.pdf
dc.identifier.doi10.1002/2017SW001695
dc.identifier.sourceSpace Weather
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