
%0 Journal Article
%A James, RW 
%T Multipole Analysis. I. Theory, and Geomagnetic Multipoles 1965·0
%J Australian Journal of Physics
%D 1968/08/01
%V 21
%N 4
%P 455-464
%K 
%R https://doi.org/10.1071/PH680455
%U https://www.publish.csiro.au/paper/PH680455 
%X A reduction of order procedure is outlined which allows virtually any order multipole analysis for a general spherical surface harmonic to be rapidly carried out. The geomagnetic multipoles, to order eight, are found for the epoch 1965· 0 and the theory is used to obtain the spherical harmonic coefficients when the dipole axis is chosen as polar axis. 
