Possible ion-acoustic soliton formation in the ionospheric perturbations observed on DEMETER before the 2007 Pu’er earthquake

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• 作者：U. A. Mofiz (1)
  R. Battiston (2)
  
• 关键词：earthquake ; ionosphere ; plasma ; dispersion ; ion ; acoustic soliton ; P352.3
• 刊名：Earthquake Science
• 出版年：2009
• 出版时间：June 2009
• 年：2009
• 卷：22
• 期：3
• 页码：257-262
• 全文大小：212KB
• 参考文献：1. Berthelier J J, Godefroy M, Leblanc F, Malingre M, Menvielle M, Lagoutte D, Brochot J Y, Colin F, Elie F, Legendre C, Zamora P, Benoist D, Chapuis Y, Artru J and Pfaff R (2006). ICE, the electric field experiment on DEMETER. / Planet Space Sci 54: 456-71. CrossRef
  2. Mofiz U A (2006). On the generation of large amplitude spiky solitons by ultralow frequency earthquake emission in the Van Allen radiation belt. / Physics of Plasmas 13: 082902(1-0).
  3. Parrot M (1995). Use of satellites to detect seismo-electromagnetic effects. / Adv Space Science Res 15(11): 27. CrossRef
  4. Parrot M, Benoist D, Berthelier J J, Blecki J, Chapuis Y, Colin F, Elie F, Fergeau P, Lagoutte D, Lefeuvre F, Legendre C, Lévêque M, Pincon J L, Poirier B, Seran H-C and Zamora P (2006). The magnetic field experiment IMSC and its data processing on board DEMETER: Scientific objectives, description and first results. / Planet Space Sci 54: 441-55. CrossRef
  5. Sarkar S, Gwal A K and Parrot M (2007). Ionospheric variations observed by the DEMETER satellite in the mid-latitude region during strong earthquakes. / J Atmos Sol-Terr Phys 69(13): 1 524- 540. CrossRef
  6. Ouyang X Y, Zhang X M, Shen X H, Liu J, Qian J D, Cai J A and Zhao S F (2008). Ionospheric / N _e disturbances before 2007 Pu’er, Yunnan, China, earthquake. / Acta Seismologica Sinica 21(4): 425-37. CrossRef
  7. Zhu R, Yang D M, Jing F, Yang J Y and Ouyang X Y (2008). Ionospheric perturbations before Pu’er earthquake observed on DEMETER. / Acta Seismologica Sinica 21(1): 77-1. CrossRef
  
• 作者单位：U. A. Mofiz (1)
  R. Battiston (2)
  
  1. Department of Mathematics and Natural Sciences, BRAC University, 66 Mohakhali, Dhaka, 1212, Bangladesh
  2. Istituto Nazionale di Fisica Nucleare, Via A. Pascoli, Perugia, 06123, Italy
  
• ISSN：1867-8777

文摘

The data of ionospheric perturbations observed on DEMETER before the 2007 Pu’er earthquake are analyzed. The three-component plasma (ions, electrons and heavy ions) is studied in the fluid concept. The linear dispersion relation for ion-acoustic wave is found in the presence of heavy ions. The nonlinear dynamics is studied for arbitrary amplitude of the wave. The Sagdeev potential is calculated, which shows that solitary structure exists for Mach number within a range defined by the presence of heavy ions. The developed ion-acoustic solitons may be used as precursor for earthquake prediction.