Meyer has discussed only the Rn aspect of the Alldredge (1984) paper he is criticising. He has ignored the pictorial demonstration of the need for higher harmonics to properly describe the secular variation field than the main field as demonstrated. This more or less independent demonstration supports the general conclusion of that paper. -from Author
Additional publication details
Comments on 'Remarks on the secular change in the energy density spectrum of the geomagnetic field' by Joachim Meyer.