Summary of Cutoff Rigidities Calculated with the International Geomagnetic Reference Field for Various Epochs

Summary of Cutoff Rigidities Calculated with the International Geomagnetic Reference Field for Various Epochs
Author: M. A. Shea
Publisher:
Total Pages: 102
Release: 1976
Genre: Cosmic rays
ISBN:

Tables of cosmic-ray cutoff rigidities using the trajectory-tracing technique are given for five Epochs of the geomagnetic field. These values have been determined utilizing the International Geomagnetic Reference Field with time derivatives applied so that the coefficients for the field model are appropriate for the following Epochs: 1955.0, 1965.0, 1966.5, 1970.0, and 1975.0. Each table includes the geographic coordinates and L value of each location together with the main cutoff rigidity, the Stormer cutoff rigidity, and the effective cutoff rigidity. Tables for both vertical and non-vertical directions are included, as well as a listing of the FORTRAN computer program used to calculate these values. (Author).

Supplemental Summary of Cutoff Rigidities Calculated Using the International Geomagnetic Reference Field for Various Epochs

Supplemental Summary of Cutoff Rigidities Calculated Using the International Geomagnetic Reference Field for Various Epochs
Author: M. A. Shea
Publisher:
Total Pages: 68
Release: 1982
Genre: Cosmic magnetic fields
ISBN:

Tables of cosmic-ray cutoff rigidities using the trajectory-tracing technique are given for three epochs of the geomagnetic field. These values have been determined utilizing the International Geomagnetic Reference Field with time derivatives applied so that the coefficients for the field model are appropriate for the following epochs: 1965.0, 1970.0, and 1975.0. Each table includes the geographic coordinates and L value of each location together with the main cutoff rigidity, the Stormer cutoff rigidity, and the effective cutoff rigidity. The altitude for which each set of values was calculated is also given. Tables for both vertical and non-vertical directions are included. These cutoff rigidity values are supplemental to those published in previous AFGL reports. In addition, minor corrections to previously published values are also included.

Accessions List

Accessions List
Author: Environmental Science Information Center. Library and Information Services Division
Publisher:
Total Pages: 18
Release: 1984
Genre: Ecology
ISBN:

Accessions List

Accessions List
Author: Assessment and Information Services Center (U.S.). Library and Information Services Division
Publisher:
Total Pages: 606
Release: 1983
Genre: Earth sciences
ISBN:

Accessions List

Accessions List
Author: United States. National Environmental Satellite, Data, and Information Service. Library and Information Services Division
Publisher:
Total Pages: 606
Release: 1983
Genre:
ISBN:

Asymptotic Directions and Vertical Cutoff Rigidities for Selected Cosmic-ray Stations as Calculated Using the International Geomagnetic Reference Field Model Appropriate for Epoch 1975.0

Asymptotic Directions and Vertical Cutoff Rigidities for Selected Cosmic-ray Stations as Calculated Using the International Geomagnetic Reference Field Model Appropriate for Epoch 1975.0
Author: M. A. Shea
Publisher:
Total Pages: 112
Release: 1975
Genre: Asymptotes
ISBN:

Tables of asymptotic directions and vertical cutoff rigidities for a selected set of cosmic-ray stations are presented. These values were obtained by the integration of vertically incident cosmic-ray trajectories through the International Geomagnetic Reference Field model adjusted for a 1975.0 Epoch. The table of asymptotic directions contains the asymptotic latitudes and longitudes that specify the direction of approach from interplanetary space of a cosmic-ray particle. These asymptotic directions are given for specific rigidities above the main cone cutoff rigidity for each station, and at 0.01 GV rigidity intervals throughout the penumbra. Maps of the asymptotic directions for each station are also included. The table of vertical cutoff rigidities contains the geographic coordinates and L value of each cosmic-ray station together with the main cone cutoff rigidity, the Stormer cutoff rigidity, and the effective cutoff rigidity. (Author).