A Study Of Vertical Cutoff Rigidities Using Sixth Degree Simulations Of The Geomagnetic Field
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Asymptotic Directions and Vertical Cutoff Rigidities for Selected Cosmic-ray Stations as Calculated Using the Finch and Leaton Geomagnetic Field Model
| Author | : M. A. Shea |
| Publisher | : |
| Total Pages | : 104 |
| Release | : 1975 |
| Genre | : Computer simulation |
| 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 Finch and Leaton (Epoch 1955) quiescent model of the geomagnetic field. 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 symptotic directions for each station are 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 Stoermer cutoff rigidity, and the effective cutoff rigidity. (Author).
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).
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).
Master Station List for Solar-terrestrial Physics Data at WDC-A for Solar-terrestrial Physics
| Author | : R. W. Buhmann |
| Publisher | : |
| Total Pages | : 128 |
| Release | : 1974 |
| Genre | : Astronomical observatories |
| ISBN | : |
A master station list containing information on the location of stations or observatories active in one or more of the disciplines of solar-terrestrial physics was compiled. The alphabetical listing includes the station coordinates, geomagnetic coordinates, conjugate geomagnetic coordinates, L-shell value, invariant latitude value, computed geocentric magnetic dip, and opening and closed dates for each of the observing stations. The vertical cutoff rigidity and station altitude are included for cosmic-ray stations. In addition to the alphabetical listing, a second listing of the master station list by geomagnetic latitude is included. Separate individual discipline listings are also presented.
