Publications
Geomagnetism publications.
Fact Sheets
Fact Sheets
1-2 page plain language summaries of geomagnetism topics and research
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Sensitivity of selected geomagnetic properties to truncation level of spherical harmonic expansions Sensitivity of selected geomagnetic properties to truncation level of spherical harmonic expansions
A two day selection of MAGSAT data is fit by spherical harmonic series truncated at increasing levels NF in the range 2
Authors
E.R. Benton, Ronald H. Estes, R.A. Langel, L.A. Muth
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: January 1982 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: January 1982
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.
Authors
John Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence
Geomagnetic local and regional harmonic analyses Geomagnetic local and regional harmonic analyses
Procedures are developed for using rectangular and cylindrical harmonic analyses in local and regional areas. Both the linear least squares analysis, applicable when component data are available, and the nonlinear least squares analysis, applicable when only total field data are available, are treated. When component data are available, it is advantageous to work with residual fields...
Authors
L.R. Alldredge
International Geomagnetic Reference Field 1980: charts and grid values, IAGA Bulletin No. 47 International Geomagnetic Reference Field 1980: charts and grid values, IAGA Bulletin No. 47
No abstract available.
Authors
Eugene B. Fabiano, N.W. Peddie, D.R. Barraclough, A.K. Zunde
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: October 1982 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: October 1982
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.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, T.K. Cunningham
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: June 1982 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: June 1982
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.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, T.K. Cunningham
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: March 1982 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: March 1982
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.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: February 1982 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: February 1982
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.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence
Paleomagnetic data from the Coso Range, California and current status of the Cobb Mountain normal geomagnetic polarity event Paleomagnetic data from the Coso Range, California and current status of the Cobb Mountain normal geomagnetic polarity event
Two basalt flows which erupted about 1.08 m.y. ago in the Coso Range, California, have normal magnetic polarity and thus provide additional evidence for the Cobb Mountain normal polarity event. A review of available data confirms that this event was of geomagnetic origin. A mean age of 1.10 ± 0.02 m.y. B.P. for the Cobb Mountain normal polarity event was found to best fit all available...
Authors
Edward A. Mankinen, C. Sherman Gromme
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Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: July 1982 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: July 1982
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.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, T.K. Cunningham
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: September 1982 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: September 1982
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.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, T.K. Cunningham
International Geomagnetic Reference Field International Geomagnetic Reference Field
In August 1981 the International Association of Geomagnetism and Aeronomy revised the International Geomagnetic Reference Field (IGRF). It is the second revision since the inception of the IGRF in 1968. The revision extends the earlier series of IGRF models from 1980 to 1985, introduces a new series of definitive models for 1965-1975, and defines a provisional reference field for 1975...
Authors
N.W. Peddie