Testing loss mechanisms capable of rapidly depleting relativistic electron flux in the Earth's outer radiation belt

By Janet C. Green, T. Onsager, T. P. O'Brien, D. N. Baker. 2004

184 citations recorded by the source corpus.

Subfields: Astronomy and Astrophysics, Geophysics

View Paper: https://www.semanticscholar.org/paper/65350915d16602a6b666e9d75ff36f62d08bec4b

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. R. Thorne
2. Nigel P. Meredith
3. R. Horne
4. Wen Li
5. Y. Shprits
6. Jacob Bortnik
7. Binbin Ni
8. S. Glauert

In Geophysics

1. R. Thorne
2. Nigel P. Meredith
3. R. Horne
4. Y. Shprits
5. Wen Li
6. Jacob Bortnik
7. S. Glauert
8. Binbin Ni

Citations in the corpus

• Earth's Van Allen Radiation Belts: From Discovery to the Van Allen Probes Era (2019, background): “Outer zone electron dropout events are a common feature of geomagnetic storms, particularly at higher L shells (e.g., Green et al., 2004; Matsumura et al., 2011; Millan & Thorne, 2007; Morley et al., 2010; Ni Probe A and Probe B L* profiles of 3.6MeV REPT electron energy flux overlaid along…”
• Dynamic evolution of energetic outer zone electrons due to wave‐particle interactions during storms (2007, background): “Such negative gradients are observed at L >5[ Green and Kivelson, 2004; Iles et al., 2006] and could be caused by local acceleration in the heart of the outer radiation zone or losses to magnetopause.”
• Explaining sudden losses of outer radiation belt electrons during geomagnetic storms (2012, background): “These dropouts therefore result in true particle loss due to irreversible (non-adiabatic) processe”
• Radiation Belt Environment model: Application to space weather nowcasting (2008, methodology): “fpe/fce ratio. Green and Kivelson [2004] examined the energetic electron data from POLAR/HIST instrument for acceleration event between January 1997 and January 1999.”
• Use of POES SEM-2 observations to examine radiation belt dynamics and energetic electron precipitation into the atmosphere (2010, background): “[3] Essentially all geomagnetic storms substantially alter the electron radiation belt populations, reflecting acceleration, loss, and transport processes [Reeves et al., 2003, 2009], in which precipitation losses into the atmosphere play a major role [Green et al., 2004].”
• Relativistic electron precipitation by EMIC waves from self‐consistent global simulations (2008, background): “It is clear that the pitch angle diffusion coefficients increase with energy and, in general, near the loss cone as expected [e.g., Glauert and Horne, 2005; Li et al., 2007], however, they may extend to much larger (� 60) pitch angles at all energies during specific conditions (Figure 2, right).”
• Source and seed populations for relativistic electrons: Their roles in radiation belt changes (2015, result): “Such reductions at geostationary orbit, usually of shorter duration than this case, have been reported previously and have been studied extensively [Onsager et al., 2002, 2007; Green et al., 2004].”
• Electron losses from the radiation belts caused by EMIC waves (2014, background): “…electrons with energies larger than a couple MeV [Clilverd et al., 2007; Millan et al., 2007; Rodger et al., 2008] suggesting that they may play a role in the relativistic electron flux dropouts seen during the main phase of geomagnetic storms [e.g., Blake et al., 2001; Green et al., 2004].”
• Outward radial diffusion driven by losses at magnetopause (2006, background): “process when the peak in the radiation belts is formed by local acceleration [ Green and Kivelson, 2004 ].”
• Global characteristics of electromagnetic ion cyclotron waves: Occurrence rate and its storm dependence (2013, background): “The cyclotron resonance scattering is currently considered one of the leading loss mechanisms of radiation belt electrons [e.g., Onsager et al., 2002; Green et al., 2004; Bortnik et al., 2006; Onsager et al., 2007; Borovsky and Denton, 2009; Ebihara and Miyoshi, 2011; Turner et al., 2012], although ”
• Observation of two distinct, rapid loss mechanisms during the 20 November 2003 radiation belt dropout event (2006, background): “The study con- cluded that precipitation to the atmosphere was most likely the cause of the dropout, but the cause of the precipitation was uncertain [Green et al., 2004].”