1975 年 27 巻 1 号 p. 33-46
Price suggested two iterative methods of calculating the currents induced in the oceans by a given primary magnetic field. For a sub-storm field the actual earth lies outside the ranges of convergence of both methods. These ranges can be extended both by applying different iteration algorithms to the continents and oceans, and by using accelerators, but convergence is still not rapid enough to give useful results.