On the cause of prolonged dropouts of the electron radiation belt

Details On the cause of prolonged dropouts of the electron radiation belt On the cause of prolonged dropouts of the electron radiation belt

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm24a..07m&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SM24A-07

Physics

[2730] Magnetospheric Physics / Magnetosphere: Inner, [2772] Magnetospheric Physics / Plasma Waves And Instabilities, [2774] Magnetospheric Physics / Radiation Belts, [2784] Magnetospheric Physics / Solar Wind/Magnetosphere Interactions

Scientific paper

Predicting losses or enhancements of relativistic electron fluxes during storm time has proven difficult, with only ~50% of Dst storms showing a net increase in fluxes and about 20% showing a net decrease. Under high-speed stream driving the predictability of net flux increases is enhanced by the Russell-McPherron effect but substantial variability is still observed. High-speed solar wind streams, which have their origins in the outflow from coronal holes, form a large-scale repeatable driver for Earth's magnetosphere and the parts of geospace coupled to it. Recent observations using the GPS constellation have shown that dropouts extending to L*~4 are a consistent response to high-speed streams, irrespective of whether the stream drives a geomagnetic storm. Case studies have shown that these dropouts can occur on time scales of less than 3 hrs and recovery to pre-event count levels can take in excess of two weeks. Here we show results of a statistical study of a set of prolonged electron dropouts observed with GPS, combined with insight from detailed case studies and modeling. We discuss how these different statistical and more detailed individual studies inform our understanding of the processes driving variability in the outer electron radiation belt and the conditions that drive prolonged losses.

Affiliated with

Also associated with

No associations

Rating

On the cause of prolonged dropouts of the electron radiation belt 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 On the cause of prolonged dropouts of the electron radiation belt, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the cause of prolonged dropouts of the electron radiation belt will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1890525