Publications
Geomagnetism publications.
Fact Sheets
Fact Sheets
1-2 page plain language summaries of geomagnetism topics and research
Filter Total Items: 415
An assessment of the near-surface accuracy of the international geomagnetic reference field 1980 model of the main geomagnetic field An assessment of the near-surface accuracy of the international geomagnetic reference field 1980 model of the main geomagnetic field
The new International Geomagnetic Reference Field (IGRF) model of the main geomagnetic field for 1980 is based heavily on measurements from the MAGSAT satellite survey. Assessment of the accuracy of the new model, as a description of the main field near the Earth's surface, is important because the accuracy of models derived from satellite data can be adversely affected by the magnetic...
Authors
N.W. Peddie, A.K. Zunde
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, July 1985 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, July 1985
No abstract available.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, P.A. Franklin
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, September 1985 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, September 1985
No abstract available.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, P.A. Franklin
Feasibility of a nationwide program for the identification and delineation of hazards from mud flows and other landslides; Chapter A, Landslide classification for identification of mud flows and other landslides Feasibility of a nationwide program for the identification and delineation of hazards from mud flows and other landslides; Chapter A, Landslide classification for identification of mud flows and other landslides
No abstract available.
Authors
Russell H. Campbell, David J. Varnes, Robert W. Fleming, Monty A. Hampton, David B. Prior, Dwight A. Sangrey, Donald R. Nichols, Earl E. Brabb
How the geomagnetic field vector reverses polarity How the geomagnetic field vector reverses polarity
A highly detailed record of both the direction and intensity of the Earth's magnetic field as it reverses has been obtained from a Miocene volcanic sequence. The transitional field is low in intensity and is typically non-axisymmetric. Geomagnetic impulses corresponding to astonishingly high rates of change of the field sometimes occur, suggesting that liquid velocity within the Earth's...
Authors
M. Prevot, E. A. Mankinen, C. S. Grommé, R. S. Coe
Steens Mountain geomagnetic polarity transition is a single phenomenon Steens Mountain geomagnetic polarity transition is a single phenomenon
[No abstract available]
Authors
C. S. Grommé, E. A. Mankinen, M. Prevot, R. S. Coe
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, May 1985 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, May 1985
No abstract available.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, P.A. Franklin
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, June 1985 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, June 1985
No abstract available.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, P.A. Franklin
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, February 1985 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, February 1985
No abstract available.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, P.A. Franklin
The Steens Mountain (Oregon) geomagnetic polarity transition, 2. Field intensity variations and discussion of reversal models The Steens Mountain (Oregon) geomagnetic polarity transition, 2. Field intensity variations and discussion of reversal models
We carried out an extensive paleointensity study of the 15.5±0.3 m.y. Miocene reversed‐to‐normal polarity transition recorded in lava flows from Steens Mountain (south central Oregon). One hundred eighty‐five samples from the collection whose paleodirectional study is reported by Mankinen et al. (this issue) were chosen for paleointensity investigations because of their low viscosity...
Authors
M. Prevot, Edward A. Mankinen, Robert S. Coe, C. Sherman Gromme
By
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, April 1985 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, April 1985
No abstract available.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, P.A. Franklin
More on the alleged 1970 geomagnetic jerk More on the alleged 1970 geomagnetic jerk
French and United Kingdom workers have published reports describing a sudden change in the secular acceleration, called an impulse or a jerk, which took place around 1970. They claim that this change took place in a period of a year or two and that the sources of the alleged jerk are internal. An earlier paper by this author questioned their method of analysis pointing out that their...
Authors
L.R. Alldredge