NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Solar disturbances and correlated geospace responses: Relativistic magnetospheric electron accelerationThe role of high-speed solar wind streams in driving relativistic electron acceleration within the earth's magnetosphere is discussed based on International Solar-Terrestrial Physics (ISTP) Observatory and related spacecraft observations. A 'recirculation' mechanism for electron acceleration and redistribution was invoked. Recently, an increase in the number of coronal mass ejections (CMEs) and related 'magnetic clouds' was seen at 1 AU. As these CME/cloud systems interact with the earth's magnetosphere, they are able to produce rapid enhancements in the magnetospheric electron population. The relativistic electron signatures observed by the POLAR, SAMPEX, and other spacecraft during recent magnetic cloud events, especially January 1997 and May 1997, were compared and contrasted. In these cases, there were large solar wind and IMF changes during the cloud passages and very rapid energetic electron acceleration was observed. The relative geoeffectiveness of these events is examined and 'space weather' predicatability is assessed.
Document ID
19990056487
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Baker, D. N.
(Colorado Univ. Boulder, CO United States)
Pulkkinen, T. I.
(Colorado Univ. Boulder, CO United States)
Date Acquired
August 19, 2013
Publication Date
December 1, 1997
Publication Information
Publication: Proceedings of the 31st ESALB Symposium on Correlated Phenomena at the Sun, in the Heliosphere and in Geospace
Subject Category
Solar Physics
Distribution Limits
Public
Copyright
Other
Document Inquiry

Available Downloads

There are no available downloads for this record.
No Preview Available