Lifetime of Energetic Electrons due to Interactions with Chorus Waves
Cite as:
Wang, Dedong; Shprits, Yuri; Haas, Bernhard (2022): Lifetime of Energetic Electrons due to Interactions with Chorus Waves. V. 1.0. GFZ Data Services. https://doi.org/10.5880/GFZ.2.7.2022.002
Status
I N R E V I E W : Wang, Dedong; Shprits, Yuri; Haas, Bernhard (2022): Lifetime of Energetic Electrons due to Interactions with Chorus Waves. V. 1.0. GFZ Data Services. https://doi.org/10.5880/GFZ.2.7.2022.002
Abstract
In the near-Earth space, there are a large population of high energy electrons trapped by Earth’s magnetic field. These energetic electrons are trapped in the regions called Earth’s ring current and radiation belts. They are very dynamic and show a very strong dependence on solar wind and geomagnetic conditions. These energetic electrons can be dangerous to satellites in the near-Earth space. Therefore, it is very important to understand the mechanisms which drive the dynamics of these energetic electrons. Wave particle interaction is one of the most important mechanisms. Among the waves that can be encountered by the energetic electrons when they move around our Earth, whistler mode chorus waves can cause both acceleration and the loss of energetic electrons in the Earth's radiation belts and ring current. To quantify the effect of chorus waves on energetic electrons, we calculated the bounce-averaged quasi-linear diffusion coefficients using the chorus wave model developed by Wang et al (2019) and extended to higher latitudes according to Wang and Shprits (2019). Using these diffusion coefficients, we calculated the lifetime of the electrons with an energy range from 1 keV to 2 MeV. In each magnetic local time (MLT), we calculate the lifetime for each energy and L-shell using two different methods according to Shprits et al (2007) and Albert and Shprits (2009). We make the calculated electron lifetime database available here. Please notice that the chorus wave model by Wang et al (2019) is valid when Kp <= 6. If the user wants to use this lifetime database for Kp >6, please be careful and contact the authors.
Authors
Wang, Dedong;GFZ German Research Centre for Geosciences, Potsdam, Germany
Shprits, Yuri;GFZ German Research Centre for Geosciences, Potsdam, Germany
Haas, Bernhard;GFZ German Research Centre for Geosciences, Potsdam, Germany
Contact
Wang, Dedong
(Researcher)
; GFZ German Research Centre for Geosciences, Potsdam, Germany; ➦
Keywords
Electron lifetime, radiation belts, ring current, chorus waves
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;GFZ German Research Centre for Geosciences, Potsdam, Germany
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