Comparing ground magnetic field perturbations from global MHD simulations with magnetometer data for the 10 January 1997 magnetic storm event

Details Comparing ground magnetic field perturbations from global MHD simulations with magnetometer data for the 10 January 1997 magnetic storm event Comparing ground magnetic field perturbations from global MHD simulations with magnetometer data for the 10 January 1997 magnetic storm event

Aug 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jgra..107.1177s&link_type=abstract

Journal of Geophysical Research (Space Physics), Volume 107, Issue A8, pp. SMP 11-1, CiteID 1177, DOI 10.1029/2000JA000445

Physics

6

Magnetospheric Physics: Storms And Substorms, Magnetospheric Physics: Magnetosphere/Ionosphere Interactions, Magnetospheric Physics: Numerical Modeling, Ionosphere: Polar Cap Ionosphere

Scientific paper

A model has been developed to calculate the perturbed magnetic field at various ground-based magnetometer sites using the output of the ionospheric currents from the Lyon-Fedder-Mobarry Global MHD code. The model uses the computed ionospheric currents and the height dependence of the electrojet current above the ground, by evaluating the penetration depth of the precipitating energetic electrons, to calculate the perturbed magnetic field on the ground using Biot-Savart's law. By applying the model to the 10 January 1997 magnetic storm event we have calculated the perturbed magnetic field for four magnetometers and compared with observations. The comparison shows reasonable agreement between observations and simulations. The model including the dependence of the current sheet height on the precipitating electron energy reduces 10% error compared to the model with fixed current sheet height. The limitations of the global MHD model in calculating perturbed ground magnetic field are also discussed.

Affiliated with

Also associated with

No associations

Rating

Comparing ground magnetic field perturbations from global MHD simulations with magnetometer data for the 10 January 1997 magnetic storm event does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Comparing ground magnetic field perturbations from global MHD simulations with magnetometer data for the 10 January 1997 magnetic storm event, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Comparing ground magnetic field perturbations from global MHD simulations with magnetometer data for the 10 January 1997 magnetic storm event will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-927738