Low Altitude Validation of Geomagnetic Cutoff Models Using SAMPEX Data

Details Low Altitude Validation of Geomagnetic Cutoff Models Using SAMPEX Data Low Altitude Validation of Geomagnetic Cutoff Models Using SAMPEX Data

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm31b2105y&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SM31B-2105

Physics

[2716] Magnetospheric Physics / Energetic Particles: Precipitating, [2730] Magnetospheric Physics / Magnetosphere: Inner, [7959] Space Weather / Models, [7984] Space Weather / Space Radiation Environment

Scientific paper

Single event upsets (SEUs) caused by MeV protons are a concern for satellite operators so AFRL is working to create a tool that can specify and/or forecast SEU probabilities. An important component of the tool's SEU probability calculation will be the local energetic ion spectrum. The portion of that spectrum due to trapped energetic ion population is relatively stable and predictable; however it is more difficult to account for the transient solar energetic particles (SEPs). These particles, which can be ejected from the solar atmosphere during a solar flare or filament eruption or can be energized by coronal mass ejection (CME) driven shocks, can penetrate the Earth's magnetosphere into regions not normally populated by energetic protons. The magnetosphere will provide energy dependent shielding that also depends on its magnetic configuration. During magnetic storms that configuration is modified and the SEP cutoff latitude for a given particle energy can be suppressed up to ~15 degrees equatorward exposing normally shielded regions. As a first step to creating the satellite SEU prediction tool, we are comparing the Smart et al. (Advances in Space Research, 2006) and CISM-Dartmouth (Kress et al., Space Weather, 2010) geomagnetic cutoff tools. While they have provided some of their own validations in the noted papers, our validation will be done consistently between models allowing us to better compare the models.

Affiliated with

Also associated with

No associations

Rating

Low Altitude Validation of Geomagnetic Cutoff Models Using SAMPEX Data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Low Altitude Validation of Geomagnetic Cutoff Models Using SAMPEX Data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low Altitude Validation of Geomagnetic Cutoff Models Using SAMPEX Data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1890640