Magnetic satellites offer the opportunity to carry out electromagnetic induction studies on a global scale.

Download a PDF of the presentation "Global Electrical Conductivity and Magnetic Satellite Induction Studies" given at the second CHAMP science meeting in Potsdam, September 2003.

Find out all about the Global Conductance Map and download it.

Download a PDF of the preprint "Observing Geomagnetic Induction in Magnetic Satellite Measurements and Associated Implications for Mantle Conductivity". Here are some of the data sets used and generated in that paper:

Download the file "callcomp_dstoff.dat", which contains the Magsat and CMP3 data sets used in this study. This large (110 Mbyte) ascii file contains the following data:

Modified Julian Day

Millisecond of day

latitude

longitude

magnetic colatitude

altitude (meters)

X component of observed magnetic field, nT (Magsat data)

Y component of observed magnetic field (Magsat data)

Z component of observed magnetic field (Magsat data)

X component of predicted magnetic field (CMP3 prediction)

Y component of predicted magnetic field (CMP3 prediction)

Z component of predicted magnetic field (CMP3 prediction)

Attitude flag that came with Magsat data

in Fortran format (2i9, 3f9.3, f10.3, 6f9.1, i6)

Download the files asc_series.dat and des_series.dat , smaller ascii files which contain data triplets of time, external inducing field, internal induced field estimated for each satellite pass. Time is in seconds since MJD 44179. 'Asc' are data from the ascending paths, 'des' are the decending paths (as in Figure 3 of the paper, but resampled every hour for comparision with Dst).

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