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Details of the Faculty or Staff
Name  
 LE Huijun
Title  
   Professor
Highest Education  
   Ph.D.
Subject Categories  
   Space Physics
Phone  
   010-82998750
Zip Code  
   100029
Fax  
   010-62010846
Email  
   lehj@ mail.iggcas.ac.cn
Office  
   No.19 Beitucheng West Road, Chaoyang District, Beijing, 100029, China

Education and Appointments：

Date and place of birth: September, 1980, Jiangxi Province, CHINA
Education (dates, universities, degrees):

  • 2000.9–2004.6: Department of Physics, Wuhan University; Bachelor of Science
  • 2004.9–2009.6: Institute of Geology and Geophysics, Chinese Academy of Sciences; PhD. of Space Physics.
  • Career/Employment(dates, employers, and  positions):
  • 2009.6–2011.12: Institute of Geology and Geophysics, Chinese Academy of Sciences; Postdoctoral Research.
  • 2012.1–2018.12: Institute of Geology and Geophysics, Chinese Academy of Sciences; Researcher (Associate professor).
  • 2019.1–nowdays: Institute of Geology and Geophysics, Chinese Academy of Sciences; Researcher (professor).

Research Interests：
  1. Space weather research of the Ionosphere, especially at the Ionosphere and thermosphere responses to the short-time space weather events.
  2. Ionospheric modeling study and the data assimilation.
Public Services：

Honors：

Supported Projects：
  1. The responses of the thermosphere and ionosphere to solar eclipses, China Postdoctoral Foundation (the first class and special support), 2010.1-2012.12
  2. Statistic and modeling study on solar flare effect on the thermosphere and ionosphere, NSFC project, 2011.1-2013.12.

Publications：
  1. Le, H., N. Yang, L. Liu, Y. Chen, and H. Zhang (2017), The latitudinal structure of night-time ionospheric TEC and its empirical orthogonal functions model over North American sector, J. Geophys. Res. Space Physics, 122, 963–977, doi:10.1002/2016JA023361.
  2. Le, H., Liu, L., Ren, Z., Chen, Y., and Zhang, H., Wan., W. (2016), A modeling study of global ionospheric and thermospheric responses to extreme solar flare, Journal of Geographysics Research-Space Physics, 121, 832–840, doi:10.1002/2015JA021930.
  3. Le, H., Liu, L., Ren, Z., Hu., L, Chen, Y., and Wan., W., (2016), An ionospheric assimilation model along a meridian plane, Journal of Atmospheric and Solar-Terrestrial Physics, 148, 125-135.
  4.  Le Huijun, Jing Liu, Biqiang Zhao, Libo Liu (2015), Recent progress in ionospheric earthquake precursor study in China: A brief review, Journal of Asian Earth Sciences, 114, 420-430
  5. Le Huijun, Zhipeng Ren, Libo Liu, Yiding Chen and Hui Zhang (2015), Global thermospheric disturbances induced by a solar flare: a modeling study, Earth Planets and Space, 67, 3, DOI 10.1186/s40623-014-0166-y
  6. Le Huijun, Libo Liu, Yiding Chen, Hui Zhang, and Weixing Wan (2014), Modeling study of nighttime enhancements in F region electron density at low latitudes, J. Geophys. Res., 119, 6648–6656, doi:10.1002/2013JA019295.
  7. Le Huijun, Libo Liu, Jann-Yeng Liu, Biqiang Zhao, Yiding Chen, Weixing Wan (2013), The ionospheric anomalies prior to the M9.0 Tohoku-Oki earthquake, Journal of Asian Earth Sciences, 62, 476–484.
  8. Le Huijun, L. Liu, Y. Chen, and W. Wan (2013), Statistical analysis of ionospheric responses to solar flares in the solar cycle 23, J. Geophys. Res., 118, 576–582, doi:10.1029/2012JA017934.
  9.  Le Huijun, L. Liu, and W. Wan (2012), An analysis of thermospheric density response to solar flares during 2001–2006, J. Geophys. Res., 117, A03307, doi:10.1029/2011JA017214.
  10. Le Huijun, Liu, J.Y., Liu, L. (2011). A statistical analysis of ionospheric anomalies before 736 M6.0+ earthquakes during 2002–2010. Journal of Geophysical Research 116, A02303, doi:10.1029/2010JA015781.
  11.  Le Huijun, L. Liu, H. He, and W. Wan (2011), Statistical analysis of solar EUV and X-ray flux enhancements induced by solar flares and its implication to upper atmosphere, J. Geophys. Res., 116, A11301, doi:10.1029/2011JA016704.
  12. Le Huijun, L. Liu, and Y. Chen(2011),Comment on the paper "Total solar eclipse of July 22, 2009: Its impact on the total electron content and ionospheric electron density in the Indian zone"by Sharmaetal, J. Atmos. Solar-Terr. Phys.,73, 2034-2038.
  13.  Le Huijun, L. Liu, F. Ding, Z. Ren, Y. Chen, W. Wan, B. Ning, G. Xu, M. Wang, G. Li, B. Xiong,, and L. Hu (2010), Observations and modeling of the ionospheric behaviors over the east Asia zone during the 22 July 2009 solar eclipse, J. Geophys. Res., 115, A10313, doi:10.1029/2010JA015609.
  14. Le Huijun, L. Liu, X. Yue, W. Wan, and B. Ning (2009), Latitudinal dependence of the ionospheric response to solar eclipse, J. Geophys. Res., 114, A07308, doi:10.1029/2009JA014072.
  15.  Le Huijun, L. Liu, X. Yue, and W. Wan (2009), The ionospheric behavior in conjugate hemispheres during the 3 October 2005 solar eclipse, Ann. Geophys., 27, 179–184.
  16. Le Huijun, L. Liu, X. Yue, and W. Wan (2008), The ionospheric responses to the 11 August 1999 solar eclipse: Observations and modeling, Ann. Geophys., 26, 107–116, doi:10.5194/angeo-26-107-2008.
  17. Le Huijun, L. Liu, X. Yue, and W. Wan (2008), The mid‐latitude F2 layer during solar eclipses: Observations and modeling, J. Geophys. Res., 113, A08309, doi:10.1029/2007JA013012.
  18. Le Huijun, L. Liu, B. Chen, J. Lei, X. Yue, and W. Wan (2007), Modeling the responses of the middle latitude ionosphere to solar flares, J. Atmos. Sol. Terr. Phys., 69, 1587–1598, doi:10.1016/j.jastp.2007.06.005.
  19. Liu, J. Y., *H. Le, Y. I. Chen, C. H. Chen, L. Liu, W. Wan, Y. Z. Su, Y. Y. Sun, C. H. Lin, and M. Q. Chen (2011), Observations and simulations of seismoionospheric GPS total electron content anomalies before the 12 January 2010 M7 Haiti earthquake, J. Geophys. Res., 116, A04302, doi:10.1029/2010JA015704.
  20. Yang, N., *Le, H., Liu, L., Zhang, R., (2018) Statistical behavior of the longitudinal variations of the evening topside midlatitude trough position in both Northern and Southern Hemispheres , Journal of Geophysical Research: Space Physics, 123, 3983–3997. https://doi.org/10.1029/2017JA025048
  21. Yang Na, *Le Huijun, Liu Libo (2015), Statistical analysis of ionospheric mid-latitude trough over the Northern Hemisphere derived from GPS total electron content data, Earth Planets and Space, 67, 196, DOI 10.1186/s40623-015-0365-1
  22. Yang N., *Le Huijun, L. Liu (2016), Statistical analysis of the mid？latitude trough position during different categories of magnetic storms and different storm intensities, Earth Planets and Space, 68, 171, Doi: 10.1186/s40623-016-0554-6.
  23. Balan, N., Liu, L., and Le, H., (2018), A brief review of equatorial ionization anomaly and ionospheric irregularities. Earth Planet. Phys., 2(4), 257–275. http://doi.org/10.26464/epp2018025
  24. Balan, N., Li, Q., Liu, L., Le, H., (2018), An introduction to equatorial electrodynamics and a review of an additional layer at low latitudes , Journal of Atmospheric and Solar-Terrestrial Physics,
  25. Lei, J., Dang, T., Wang, W., Burns, A., Zhang, B., & Le, H. (2018). Long-lasting response of the global thermosphere and ionosphere to the 21 August 2017 solar eclipse. Journal of Geophysical Research: Space Physics, 123, 4309–4316.https://doi.org/10.1029/2018JA025460
  26. Chen, Y., Liu, L., Le, H. & Wan, W., (2018), Responses of solar irradiance and the ionosphere to an intense activity region , Journal of Geophysical Research: Space Physics, 123, 2116–2126. https://doi.org/10.1002/2017JA024765
  27.  Li, Q., L. Liu, N. Balan, H. Huang, R. Zhang, Y. Chen and H. Le, (2018), Longitudinal structure of the mid-latitude ionosphere using COSMIC electron density profiles, Journal of Geophysical Research: Space Physics, 123, 8766–8777. https://doi.org/ 10.1029/2017JA024927.
  28. Tang, D., Lei, J., Wang, W., Zhang, B., Le, H., Burns, A., Wu, Q., Ruan, H., Dou, X., Wan, W. (2018), Global Responses of the Coupled Thermosphere and Ionosphere System to the August 2017 Great American Solar Eclipse , Journal of Geophysical Research: Space Physics, 123, 7040–7050. https://doi.org/10.1029/2018JA025566
  29. Zhang, R., Liu, L., Balan, N., Le, H., Chen, Y., & Zhao, B. (2018). Equatorial ionospheric disturbance field-aligned plasma drifts observed by C/NOFS. Journal of Geophysical Research: Space Physics, 123, 4192–4201. https://doi.org/10.1029/2018JA025273
  30. Zhang, R., L. Liu, H. Le, and Y. Chen (2017), Equatorial ionospheric electrodynamics during solar flares, Geophys. Res. Lett., 44, 4558–4565, doi:10.1002/2017GL073238.
  31. Chen, Y., L. Liu, H. Le, W. Wan, and H. Zhang (2017), The effect of zonal wind reversal around sunset on ionospheric interhemispheric asymmetry at March equinox of a solar maximum year 2000, J. Geophys. Res. Space Physics, 122, 4726–4735, doi:10.1002/2017JA023874.
  32. Kuai, J., L. Liu, J. Lei, J. Liu, B. Zhao, Y. Chen, H. Le, Y. Wang, and L. Hu (2017), Regional differences of the ionospheric response to the July 2012 geomagnetic storm, J. Geophys. Res. Space Physics, 122, 4654–4668, doi:10.1002/2016JA023844.
  33. Liu, L., H. Liu, H. Le, Y. Chen, Y.-Y. Sun, B. Ning, L. Hu, W. Wan, N. Li, and J. Xiong (2017), Mesospheric temperatures estimated from the meteor radar observations at Mohe, China, J. Geophys. Res. Space Physics, 122, 2249–2259, doi:10.1002/2016JA023776.
  34.  Liu, L., H. Liu, Y. Chen, H. Le, Y.-Y. Sun, B. Ning, L. Hu, and W. Wan (2017), Variations of the meteor echo heights at Beijing and Mohe, China, J. Geophys. Res. Space Physics, 122, 1117–1127, doi:10.1002/2016JA023448.
  35. Chen, Y., L. Liu, H. Le, W. Wan, and H. Zhang (2016), Equatorial ionization anomaly in the low-latitude topside ionosphere: Local time evolution and longitudinal difference, J. Geophys. Res. Space Physics, 121, 7166–7182, doi:10.1002/2016JA022394.
  36. Chen, Y., L. Liu, H. Le, W. Wan, and H. Zhang (2016), The global distribution of the dusk-to-nighttime enhancement of summer NmF2 at solar minimum, J. Geophys. Res. Space Physics, 121, 7914–7922, doi:10.1002/2016JA022670.
  37. Huang, H., L. Liu, Y. Chen, H. Le, and W. Wan (2016), A global picture of ionospheric slab thickness derived from GIM TEC and COSMIC radio occultation observations, J. Geophys. Res. Space Physics, 121, 867–880, doi:10.1002/2015JA021964.
  38. Kuai, J., L. Liu, J. Liu, S. Sripathi, B. Zhao, Y. Chen, H. Le, and L. Hu (2016), Effects of disturbed electric fields in the lowlatitude and equatorial ionosphere during the 2015 St. Patrick's Day storm, J. Geophys. Res. Space Physics, 121, 9111–9126, doi:10.1002/2016JA022832.
  39. Zhang, R., L. Liu, H. Le, and Y. Chen (2016), Evidence and effects of the sunrise enhancement of the equatorial vertical plasma drift in the F region ionosphere, J. Geophys. Res. Space Physics, 121, 4826–4834, doi:10.1002/2016JA022491.
  40. Zhang, H., et al. (2016), Alfvén wings in the lunar wake: The role of pressure gradients, J. Geophys. Res. Space Physics, 121, 10,698–10,711, doi:10.1002/2016JA022360.
  41. Chen Yiding, Liu Libo, Le Huijun, Wan Weixing, Zhang Hui (2015), Dusk-to-nighttime enhancement of mid-latitude NmF2 in local summer: inter-hemispheric asymmetry and solar activity dependence, , Ann. Geophys., 33, 711–718, doi:10.5194/angeo-33-711-2015
  42. Chen Yiding, Liu Libo, Le Huijun, Zhang hui (2015), Discrepant responses of the global electron content to the solar cycle and solar rotation variations of EUV irradiance, Earth Planets and Space, 67, 80, DOI 10.1186/s40623-015-0251-x.
  43. Chen Yiding, Liu Libo, Le Huijun, Wan Weixing, Zhang Hui (2015), NmF2 enhancement during ionospheric F2 region nighttime: A statistical analysis based on COSMIC observations during the 2007–2009 solar minimum, J. Geophys. Res. Space Physics, 120, 10,083–10,095, doi:10.1002/2015JA021652.
  44.  Huang,He, Yiding Chen, Libo Liu, Huijun Le, and Weixing Wan (2015), An empirical model of the topside plasma density around 600 km based on ROCSAT-1 and Hinotori observations, J. Geophys. Res. Space Physics, 120, 4052–4063, doi:10.1002/2014JA020940.
  45. Kuai Jiawei, L. Liu, J. Liu, B. Zhao, Y. Chen, H. Le, and W. Wan (2015), The long-duration positive storm effects in the equatorial ionosphere over Jicamarca, J. Geophys. Res. Space Physics, 120, 1311–1324, doi:10.1002/2014JA020552.
  46. Zhang, R., L. Liu, Y. Chen, and H. Le (2015), The dawn enhancement of the equatorial ionospheric vertical plasma drift, J. Geophys. Res. Space Physics, 120, 10688–10697, doi:10.1002/2015JA021972.
  47. Zhu ChangBo, H. Zhang, Y. S. Ge, Z. Y. Pu, W. L. Liu, W. X. Wan, L. B. Liu, Y. D. Chen, H. J. Le, and Y. F. Wang (2015), Dipole tilt angle effect on magnetic reconnection locations on the magnetopause, J. Geophys. Res. Space Physics, 120, doi:10.1002/2015JA020989.
  48. Chen Yiding, Liu Libo, Le Huijun, Wan Weixing (2014), How does ionospheric TEC vary if solar EUV irradiance continuously decreases? Earth Planets and Space, 66, 52, DOI: 10.1186/1880-5981-66-52.
  49. Chen Yiding, Liu Libo, Le Huijun, Wan Weixing (2014), Geomagnetic activity effect on the global ionosphere during the 2007-2009 deep solar minimum, J. Geophys. Res. Space Physics, 119, 3747-3754, DOI: 10.1002/2013JA019692.
  50. Liu Libo, He Huang, Yiding Chen, Huijun Le, Baiqi Ning, Weixing Wan, and Hui Zhang (2014), Deriving the effective scale height in the topside ionosphere based on ionosonde and satellite in situ observations, J. Geophys. Res. Space Physics, 119, 8472–8482, doi:10.1002/2014JA020505.
  51. Liu Libo, Y. Chen, H. Le, B. Ning, W. Wan, J. Liu, L. Hu (2013), A case study of postmidnight enhancement in F-layer electron density over Sanya of China, J. Geophys. Res. Space Physics, 118, 4640–4648, doi: 10.1002/jgra.50423.
  52. Ren Zhipeng, W. Wan, L. Liu, H. Le, and M. He (2012), Simulated midlatitude summer nighttime anomaly in realistic geomagnetic fields, J. Geophys. Res., 117, A03323, doi:10.1029/2011JA017010.
  53.  Liu Libo, J. Yang, H. Le, Y. Chen, W. Wan, and C.-C. Lee (2012), Comparative study of the equatorial ionosphere over Jicamarca during recent two solar minima, J. Geophys. Res., 117, A01315, doi:10.1029/2011JA017215.
  54. Ren Zhipeng, W. Wan, L. Liu, and H. Le (2012), TIME3D-IGGCAS: A new three-dimension mid- and low-latitude theoretical ionospheric model in realistic geomagnetic fields, J. Atmos. Sol. Terr. Phys., 80, 258-266, doi:10.1016/j. jastp.2012.02.001.
  55. Zhao Biqiang, W. Wan, B. Reinisch, X. Yue, H. Le, J. Liu, and B. Xiong (2011), Features of the F3 layer in the low-latitude ionosphere at sunset, J. Geophys. Res., 116, A01313, doi:10.1029/2010JA016111.
  56. Xiong Bo, W. Wan, L. Liu, P. Withers, B. Zhao, B. Ning, Y. Wei, H. Le, Z. Ren, Y. Chen, M. He, and J. Liu (2011), Ionospheric response to the X-class solar flare on 7 September 2005, J. Geophys. Res., 116, A11317, doi:10.1029/2011JA016961.
  57. Ren Zhipeng, W. Wan, L. Liu, Y. Chen, and H. Le (2011), Equinoctial asymmetry of ionospheric vertical plasma drifts and its effect on F-region plasma density, J. Geophys. Res., 116, A02308, doi:10.1029/2010JA016081.
  58. Liu Libo, Y. Chen, H. Le, V. I. Kurkin, N. M. Polekh, and C.-C. Lee (2011), The ionosphere under extremely prolonged low solar activity, J. Geophys. Res., 116, A04320, doi:10.1029/2010JA016296.
  59. Liu Libo, H. Le, Y. Chen, M. He, W. Wan, and X. Yue (2011), Features of the middle- and low-latitude ionosphere during solar minimum as revealed from COSMIC radio occultation measurements, J. Geophys. Res., 116, A09307, doi:10.1029/2011JA016691.
  60. He Maosheng, L. Liu, W. Wan, B. Ning, B. Zhao, J. Wen, X. Yue, and H. Le (2009), A study of the Weddell Sea Anomaly observed by FORMOSAT-3/COSMIC, J. Geophys. Res., 114, A12309, doi:10.1029/2009JA014175.
  61. Ding Feng, W. Wan, B. Ning, L. Liu, H. Le, G. Xu, M. Wang, G. Li, Y. Chen, Z. Ren, B. Xiong, L. Hu, X. Yue, B. Zhao, F. Li, and M. Yang (2010), GPS TEC response to the 22 July 2009 total solar eclipse in East Asia, J. Geophys. Res., 115, A07308, doi:10.1029/2009JA015113.
  62. Chen Yiding, L. Liu, and H. Le (2008), Solar activity variations of nighttime ionospheric peak electron density, J. Geophys. Res., 113, A11306, doi:10.1029/2008JA013114.
  63.  Liu Libo, H. Le, W. Wan, M. P. Sulzer, J. Lei, and M.-L. Zhang (2007), An analysis of the scale heights in the lower topside ionosphere based on the Arecibo incoherent scatter radar measurements, J. Geophys. Res., 112, A06307, doi:10.1029/2007JA012250.
  64.  Yang Jun, Liu Libo, Chen Yiding, Le Huijun (2012) Does the equatorial ionospheric peak electron density really record the lowest during the recent deep solar minimum? Chinese Journal of Geophysics Vol.55, No.5, 2012, pp: 457–465.
  65. 杨君, 刘立波, 陈一定, 乐会军 (2012)．赤道地区电离层foF2在第23/24太阳活动周极低年期间创造了极低纪录? 地球物理学报, 55(9): 2826-2834, doi: 10.6038/j.issn.0001-5733.2012.09.002.
  66. Liu Libo, Wan Weixing, Chen Yiding, Le Huijun (2011), Solar activity effects of the ionosphere: A brief review. Chinese Sci Bull, 56: 1202-1211, doi: 10. 1007/s11434-010-4226-9.
  67. 刘立波, 万卫星, 陈一定, 乐会军 (2011), 电离层与太阳活动性关系, 科学通报,56(7), 466-477.
  68. Yue Xinan, Wan Weixing, Liu Libo, Le Huijun, Chen Yiding, and Yu Tao (2008), Development of a middle and low latitude theoretical ionospheric model and an observation system data assimilation experiment, Chinese. Sci. Bull., 53(1), 94– 101.
  69. 乐新安, 万卫星,刘立波, 乐会军, 陈一定, 余涛 (2007), 中低纬电离层理论模式的构建和一个观测系统数据同化试验, 科学通报, 52(18), 2180-2186.
  70. Liu Libo, Chen Y., Le H., Liu J., Wan W. (2014), Some investigations on the ionosphere during 2012–2014 in China, Chinese J. Space Sci., 34, 648-668, doi:10.11728/cjss2014.05.648.
  71. Liu Libo, Wan Weixing Chen Yiding Le Huijun Zhao Biqiang, (2012), Recent Progresses on Ionospheric Climatology Investigations, Chinese J. Space Sci., 32(5): 665-680.
  72. Liu J Y, Chen C H, Tsai H F, Le H., (2013), A statistical study on seismo-ionospheric anomalies of the total electron content for the period of 56 M>6.0 earthquakes occurring in China during 1998？2012. Chinese J. Space Sci., 33(3): 258-269.
  73. 李强，宁百齐，赵必强，丁锋，张锐，师宏波，乐会军，李国主，李建勇，韩宇飞 (2012), 基于陆态网络GPS数据的电离层空间天气监测与研究，地球物理学报，55(7): 2193: 2202, doi: 10.6038/j.issn.0001-5733.2012.07.006
 
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