J B Townshend

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, October 1976

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, August 1976

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, September 1976

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, December 1976

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, February 1976

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, November 1976

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, June 1976

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, March 1976

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, April 1976

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, May 1981

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, February 1982

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, March 1982

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, January

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, November 1982

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, May 1982

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, April 1982

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, July 1982

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, October 1982

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, August 1982

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, September 1982

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, December 1981

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, February 1979

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, January 1979

Preliminary Geomagnetic Data, College Observatory, Fairbanks, Alaska, March 1979