%0 Journal Article
%T Dynamic Evolution of Outer Radiation Belt Electrons due to Whistler-Mode Chorus<br>
%A SU Zhen-Peng
%A ZHENG Hui-Nan
%A XIONG Ming
%A <br>
%J 中国物理快报
%D 2009
%I 
%X Following our preceding work, we perform a further study on dynamic evolution of energetic electrons in the outer radiation belt L=4.5 due to a band of whistler-mode chorus frequency distributed over a standard Gaussian spectrum. We solve the 2D bounce-averaged Fokker-Planck equation by allowing incorporation of cross diffusion rates. Numerical results show that whistler-mode chorus can be effective in acceleration of electrons at large pitch angles, and enhance the phase space density for energies of about 1MeV by a factor of 102 or above in about one day, consistent with observation of significant enhancement in flux of energetic electrons during the recovery phase of a geomagnetic storm. Moreover, neglecting cross diffusion often leads to overestimates of the phase space density evolution at large pitch angle by a factor of 5-10 after one day, with larger errors atsmaller pitch angle, suggesting that cross diffusion also plays an important role in wave-particle interaction.
%K 94
%K 20
%K Wj
%K 52
%K 35
%K Hr
%K 94
%K 30
%K Lr
%K 94
%K 30
%K Hn<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=9F9D10495A67DA28EF31D36F5E05EF09&yid=DE12191FBD62783C&vid=96C778EE049EE47D&iid=38B194292C032A66&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0