Electrical Properties of the Earth's Mantle

Table 1 Earth conductivity profiles Figure File Name Apx. Depth Remarks References 1. Global Models 1939-69 LAPR39 0—1250 global Sq, Dst LAHIRI and PRICE, 1939; PRICE, 1973 RIKI50 0—1400 misc. data sources RIKITAKE. 1950; 1966 MCD057 0—2900 LAPR39 + secular change McDoNALD, 1957 CANT60 100—600 see ECKHARDT et a!. , 1963 CANTWELL, 1960 YUKU65 380—1900 ring current YUKUTAKE, 1965 BANK69 0—1700 ring current BANKS, 1969; 1972 2. Global Models 1970—74 BFRS70 100—700 Sq, Dst 27-d variations BERDI...