Favored regions for chorus‐driven electron acceleration to relativistic energies in the Earth's outer radiation belt

By Nigel P. Meredith, R. Horne, R. Thorne, R. R. Anderson. 2003

293 citations recorded by the source corpus.

Subfields: Astronomy and Astrophysics, Geophysics

View Paper: https://www.semanticscholar.org/paper/d114d4c27ff3c2c139abd68026b4fdc7ebb9df16

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In Astronomy and Astrophysics

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

In Geophysics

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

Citations in the corpus

• Radiation Belt Environment model: Application to space weather nowcasting (2008, methodology): “To obtain the actual diffusion coefficients, we estimate the chorus intensity at a given location and time during the storm using the survey of CRRES plasma wave data for lower-band chorus presented by Meredith et al. [2001, 2003b] .”
• Modeling of outer radiation belt electrons by multidimensional diffusion process (2009, background): “Typical chorus amplitudes are found to be 1–100 pT [Burtis and Helliwell, 1975; Meredith etal., 2003 ], and during intense geomagnetic activity amplitudes even approach 1 nT [Parrot and Gaye, 1994].”
• Statistical properties of plasmaspheric hiss derived from Van Allen Probes data and their effects on radiation belt electron dynamics (2015, background): “…chorus waves typically observed in the plasmatrough region with frequencies between 0.1 and 0.8 fce, where fce is the electron cyclotron frequency [e.g., Burtis and Helliwell, 1969; Burton and Holzer, 1974; Tsurutani and Smith, 1974, 1977; Meredith et al., 2003, 2012; Li et al., 2009, 2011].”
• Constructing the global distribution of chorus wave intensity using measurements of electrons by the POES satellites and waves by the Van Allen Probes (2013, methodology): “…plasma density from the upper hybrid line is used to differentiate chorus waves, which are preferentially observed outside the plasmapause [e.g.,Meredith et al., 2003], from plasmaspheric hiss, which is typically observed in the high-density plasmasphere or plasmaspheric plume [Thorne et al.,…”
• Modeling the evolution of chorus waves into plasmaspheric hiss (2011, background): “Since chorus wave power is known to be geomagnetically controlled [Meredith et al., 2003; Li et al., 7 of 13 2009], the plasmaspheric hiss that arises from chorus, would thus naturally show the same dependence on geomagnetic activity, consistent with observation [Meredith et al., 2004, 2006].”
• An unusual enhancement of low‐frequency plasmaspheric hiss in the outer plasmasphere associated with substorm‐injected electrons (2013, background): “[3] Whistler-mode chorus waves are intense coherent electromagnetic emissions exhibiting discrete rising or falling tones and are predominantly observed outside the plasmasphere [Burtis and Helliwell, 1969; Tsurutani and Smith, 1974; Meredith et al., 2003; Li et al., 2011].”
• Modeling the propagation characteristics of chorus using CRRES suprathermal electron fluxes (2007, background): “Chorus intensity and occurrence are directly related to geomagnetic activity [Storey, 1953; Tsurutani and Smith, 1974; Burtis and Helliwell, 1976; Meredith et al., 2001, 2003a, 2003b; Santolik et al., 2003, 2004; Smith et al., 1999, 2004; Spasojevic and Inan, 2005] and it is generally agreed that…”
• Bounce‐averaged diffusion coefficients for field‐aligned chorus waves (2006, background): “Waves are assumed to be confined within 15� of the equator, typical for the postmidnight sector (0000– 0006) MLT distribution of lower band chorus [ Meredith et al., 2003 ].”
• Parameterization of radiation belt electron loss timescales due to interactions with chorus waves (2007, methodology): “The factor of 4 accounts for the MLT averaging taking into account the fact that high latitude lower band chorus is present only over 25 % of the drift orbit [ Meredith et al., 2001; 2003 ].”
• THEMIS analysis of observed equatorial electron distributions responsible for the chorus excitation (2010, background): “However, previous studies [e.g., Sazhin and Hayakawa, 1992; Meredith et al., 2003; Bortnik et al., 2007; Li et al., 2009a] showed that dayside chorus can extend to higher latitudes of 30° or more.”
• Calculation of pitch angle and energy diffusion coefficients with the PADIE code (2005, background): “Observations show that the ratio wpe/jWe j� 3 during storm times [ Meredith et al., 2003 ], and therefore the high-density approximation for whistler mode wave dispersion breaks down.”
• Global model of lower band and upper band chorus from multiple satellite observations (2012, methodology): “In particular, the gap in the coverage in the region 4 L* 6 for 0800–1200 MLT in global wave models derived from CRRES data [e.g., Meredith et al., 2001, 2003] is filled in, primarily with data from Double Star TC1 and THEMIS.”
• Energetic outer zone electron loss timescalesduring low geomagnetic activity (2006, background): “Injection of electrons in the energy range 10– 100 keVinto the outer zone leads to the excitation of intense whistler mode chorus waves outside the plasmasphere on the dawnside of the magnetosphere [e.g., Tsurutani and Smith, 1977; Meredith et al., 2001, 2003a ].”
• Earth's Van Allen Radiation Belts: From Discovery to the Van Allen Probes Era (2019, background): “to efficient EMIC‐driven pitch angle scattering (Emin) is previously found to be larger than ~2 MeV (e.g., Jordanova et al., 2008; Meredith et al., 2003) but sometimes could extend to a few hundred keV when fpe/ fce is relatively large and wave frequency is close to the ion cyclotron frequency based”