IDEAS home Printed from https://ideas.repec.org/a/spr/nathaz/v55y2010i2p321-332.html
   My bibliography  Save this article

Satellite monitoring of anomalous effects in the ionosphere related to the great Wenchuan earthquake of May 12, 2008

Author

Listed:
  • Shivalika Sarkar
  • A. Gwal

Abstract

In this paper, we present an investigation into plasma density disturbances and electric field perturbations associated with China, Sichuan, Wenchuan earthquake of magnitude M = 7.9 that occurred on May 12, 2008, at 06:28:01 UTC. The DEMETER (Detection of Electromagnetic Emissions Transmitted from Earthquake Regions) satellite was launched on June 29, 2004. The orbit of DEMETER is polar, circular with an altitude of 710 km and its main scientific objective is the study of ionospheric perturbations linked to seismic activity. For satellite orbits near the epicenter region, some ionospheric effects are investigated, which can be considered as possible earthquake precursors. The paper discusses anomalous effects in the ionosphere associated with the Wenchuan earthquake, which cannot be explained by factors of solar-magnetospheric origin. For satellite orbits eight to four days before the main shock, fluctuations in ion density and increase in horizontal and vertical components of electric field are observed near the epicenter. Post-effect is observed too. The observations suggest a coupling between the lithosphere-atmosphere-ionosphere and can be associated with the earthquake growing processes in the lithosphere and troposphere zones above the source. The results of ionospheric anomalous effects are presented and discussed. The results obtained are important because they are observed very near to epicenter. Copyright Springer Science+Business Media B.V. 2010

Suggested Citation

  • Shivalika Sarkar & A. Gwal, 2010. "Satellite monitoring of anomalous effects in the ionosphere related to the great Wenchuan earthquake of May 12, 2008," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 55(2), pages 321-332, November.
  • Handle: RePEc:spr:nathaz:v:55:y:2010:i:2:p:321-332
    DOI: 10.1007/s11069-010-9530-9
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1007/s11069-010-9530-9
    Download Restriction: Access to full text is restricted to subscribers.

    File URL: https://libkey.io/10.1007/s11069-010-9530-9?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:spr:nathaz:v:55:y:2010:i:2:p:321-332. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.springer.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.