Journal article
Electron number density, temperature, and energy density at GEO and links to the solar wind: A simple predictive capability
Journal of geophysical research. Space physics, Vol.119(6), pp.4556-4571
06/2014
DOI: 10.1002/2014JA019779
Abstract
Many authors have studied the outer radiation belts response to different solar wind drivers, with the majority investigating electron flux variations. Using partial moments (electron number density, temperature, and energy density) from GOES-13 during 2011 allows for changes in the number of electrons and the temperature of the electrons to be distinguished, which is not possible with the outputs of individual instrument channels. This study aims to produce a coarse predictive capability of the partial moments from GOES-13 by determining which solar wind conditions exhibit the strongest relationship with electron variations at GEO. Investigating how the electron distribution at GEO is affected by fluctuations in this primary driver, both instantaneous and time delayed, allows for this to be achieved. These predictive functions are then tested against data from 2012. It is found that using solely the solar wind velocity as a driver results in predicted values that accurately follow the general trend of the observed moments. This study is intended to make further progress in quantifying the relationship between the solar wind and electron number density, temperature, and energy density at GEO. Our results provide a coarse predictive capability of these quantities that can be expanded upon in future studies to incorporate other solar wind drivers to improve accuracy.
Details
- Title: Subtitle
- Electron number density, temperature, and energy density at GEO and links to the solar wind: A simple predictive capability
- Creators
- D. P. Hartley - Lancaster UniversityM. H. Denton - Space Science InstituteJ. V. Rodriguez - Cooperative Institute for Research in Environmental Sciences
- Resource Type
- Journal article
- Publication Details
- Journal of geophysical research. Space physics, Vol.119(6), pp.4556-4571
- DOI
- 10.1002/2014JA019779
- ISSN
- 2169-9380
- eISSN
- 2169-9402
- Publisher
- Amer Geophysical Union
- Number of pages
- 16
- Grant note
- ST/I000801/1 / Science and Technology Facilities Council; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) NE/H014330/1 / Natural Environment Research Council; UK Research & Innovation (UKRI); Natural Environment Research Council (NERC) NE/H014330/1 / NERC; UK Research & Innovation (UKRI); Natural Environment Research Council (NERC) Science and Technology Facilities Council (STFC); UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC); Science and Technology Development Fund (STDF) GOES-R Risk Reduction Program ST/I000801/1 / STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC)
- Language
- English
- Date published
- 06/2014
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984548857502771
Metrics
4 Record Views