
%0 Journal Article
%A Haines, G.V. 
%A Newitt, L.R. 
%T A geomagnetic reference field for Canada 1985
%J Exploration Geophysics
%D 1986/03/01
%V 17
%N 1
%P 54-54
%K 
%R https://doi.org/10.1071/EG986054
%U https://www.publish.csiro.au/paper/EG986054 
%X The recently developed technique of spherical cap harmonic analysis (SCHA) is ideally suited for the analysis of potential fields over a portion of a sphere. SCHA is a regional analog of ordinary spherical harmonics involving associated Legéndre functions of integral order but non-integral degree, and ensures that the curl and divergence of the magnetic field vector are zero (Haines 1985a). The method has been used to produce a Canadian Geomagnetic Reference Field for 1985 (CGRF 1985) and the associated series of magnetic charts. 
