Workshop on electromagnetic induction in the Earth

Working Group 1.2 of the International Association of Geomagnetism and Aeronomy (IAGA) will hold its 11th Biennial Workshop on Electromagnetic Induction in the Earth, at Victoria University of Wellington, New Zealand, from August 26 to September 2, 1992. Over 100 abstracts have been submitted for presentations in nine sessions focusing on topics of current interest in the induction field. Included is the session, “Distortion Effects in Magnetotellurics and Their Removal,” that will concentrate on attempts to retrieve structural conductivity information from data distorted by extreme local variations in measured regional electric fields. Such variations can be the source of static shift of apparent resistivity curves and can also twist and skew the electrical impedance tensor to mask details of regional conductivity structure.