Magnetic observatory data can be used to infer mantle conductivity profiles. Magnetic satellites offer the opportunity to carry out electromagnetic induction studies on a global scale.

Here are some relevant publications:

63. Medin, A.E., R.L. Parker, and S. Constable, 2007. Making sound inferences from geomagnetic sounding. Phys. Earth Planet. Int., 160, 51–59.

60. Constable, S., 2006. SEO3: A new model of olivine electrical conductivity. Geophys. J. Int., 166, 435–437.

53. Constable, C.G. and S.C. Constable, 2004. Satellite magnetic field measurements: Applications in studying the deep Earth. In “The State of the Planet: Frontiers and Challenges in Geophysics, Geophys. Mono. 150”, ed. R.S.J. Sparks and C.T. Hawkesworth, Am. Geophys. Un., pp. 147–159.

50. Constable, S., and C. Constable, 2004: Observing geomagnetic induction in magnetic satellite measurements and associated implications for mantle conductivity, Geochem. Geophys. Geosys., 5, No. 1, Q01006 DOI 10.1029/2003GC000634

48. Everett, M.E., S. Constable, and C.G. Constable, 2003: Effects of near-surface conductance on global satellite induction responses, Geophys. J. Int., 153, 277–286.

19. Constable, S.C., 1993: Constraints on mantle electrical conductivity from field and laboratory measurements, J. Geomag. Geoelect., 45, pp. 707-728.

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 (3.8 Mb).

Download a PDF of the presentation "Electrical Conductivity and Water in the Mantle" presented at Scripps, Feburary 2008 (31.7 Mb).

Find out all about the Global Conductance Map

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