A Caltech Library Service

Geomagnetic Cutoff Variations During Solar Energetic Particle Events - Implications for the Space Station

Leske, R. A. and Mewaldt, R. A. and Stone, E. C. and von Rosenvinge, T. T. (1997) Geomagnetic Cutoff Variations During Solar Energetic Particle Events - Implications for the Space Station. In: Proceedings of the 25th International Cosmic Ray Conference. Vol.2. Potchefstroom University, Space Research Unit , Transvaal, South Africa, pp. 381-384.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


Measurements of the time-variability of the location of the geomagnetic cutoff during the large solar energetic particle events of October and November 1992 using count rate data from the polar orbiting SAMPEX satellite are reviewed. Significant changes in the cutoff location of up to ~ 5° in less than one day are observed, even during periods with only moderate geomagnetic disturbances. We discuss the implications of such variations for the radiation hazard at the International Space Station, and we note that real-time monitoring of the cutoff location might be u~ed to provide a warning of the increased radiation levels, sometimes hours before the Space Station itself reaches high magnetic latitudes.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Leske, R. A.0000-0002-0156-2414
Mewaldt, R. A.0000-0003-2178-9111
Stone, E. C.0000-0002-2010-5462
Additional Information:© Space Research Unit. Provided by the NASA Astrophysics Data System. This work was supported by NASA under contract NAS5-30704 and grant NAGW-1919.
Group:Space Radiation Laboratory
Funding AgencyGrant Number
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1997-11
Record Number:CaltechAUTHORS:20140703-230120148
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46861
Deposited By: Deborah Miles
Deposited On:11 Jul 2014 04:52
Last Modified:20 Feb 2020 14:33

Repository Staff Only: item control page