Publications
Geomagnetism publications.
Fact Sheets
Fact Sheets
1-2 page plain language summaries of geomagnetism topics and research
Filter Total Items: 415
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: November 1986 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: November 1986
No abstract available.
Authors
John B. Townshend, R. V. O’Connell, H.K. Rex, L.Y. Torrence
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: May 1986 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: May 1986
No abstract available.
Authors
John B. Townshend, J.E. Papp, H.K. Rex, L.Y. Torrence
Fourier power spectra of the geomagnetic field for circular paths on the Earth's surface. Fourier power spectra of the geomagnetic field for circular paths on the Earth's surface.
The Fourier power spectra of geomagnetic component values, synthesized from spherical harmonic models, have been computed for circular paths on the Earth's surface. They are not found to be more useful than is the spectrum of magnetic energy outside the Earth for the purpose of separating core and crustal sources of the geomagnetic field. The Fourier power spectra of N and E geomagnetic...
Authors
L.R. Alldredge, E.R. Benton
Alternate forms of the associated Legendre functions for use in geomagnetic modeling. Alternate forms of the associated Legendre functions for use in geomagnetic modeling.
An inconvenience attending traditional use of associated Legendre functions in global modeling is that the functions are not separable with respect to the two indices (order and degree). In 1973 Merilees suggested a way to avoid the problem by showing that associated Legendre functions of order m and degree m+k can be expressed in terms of elementary functions as Pmm+k(θ)=sinm(θ)∑ki...
Authors
L.R. Alldredge, E.R. Benton
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: January 1986 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: January 1986
No abstract available.
Authors
John B. Townshend, J.E. Papp, H.K. Rex, L.Y. Torrence, P.A. Franklin
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: February 1986 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: February 1986
No abstract available.
Authors
John B. Townshend, J.E. Papp, H.K. Rex, L.Y. Torrence, P.A. Franklin
An interpretation of induced electric currents in long pipelines caused by natural geomagnetic sources of the upper atmosphere An interpretation of induced electric currents in long pipelines caused by natural geomagnetic sources of the upper atmosphere
Electric currents in long pipelines can contribute to corrosion effects that limit the pipe's lifetime. One cause of such electric currents is the geomagnetic field variations that have sources in the Earth's upper atmosphere. Knowledge of the general behavior of the sources allows a prediction of the occurrence times, favorable locations for the pipeline effects, and long-term...
Authors
W.H. Campbell
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: April 1986 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: April 1986
No abstract available.
Authors
John B. Townshend, J.E. Papp, H.K. Rex, L.Y. Torrence, P.A. Franklin
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: March 1986 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: March 1986
No abstract available.
Authors
John B. Townshend, J.E. Papp, H.K. Rex, L.Y. Torrence, P.A. Franklin
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: September 1986 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: September 1986
No abstract available.
Authors
John B. Townshend, H.K. Rex, L.Y. Torrence
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: June 1986 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: June 1986
No abstract available.
Authors
John B. Townshend, J.E. Papp, H.K. Rex, L.Y. Torrence
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: December 1986 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: December 1986
No abstract available.
Authors
John B. Townshend, R. V. O’Connell, L.Y. Torrence