J.E. Papp E.A. Sauter L.Y. Torrence T.K. Cunningham John B. Townshend 1982 <p>The preliminary geomagnetic data included here is made available to scientific personnel and organizations, as part of a cooperative effort and on a data exchange basis because of the early need by some users. To avoid delay, all of the data is copied from original forms processed at the observatory; therefore it should be regarded as preliminary.</p> application/pdf 10.3133/ofr82300J en U.S. Geological Survey Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: October 1982 reports