World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Is There Any Difference in Local Time Variation in Ionospheric F2-layer Disturbances Between Earthquake-induced and Q-disturbance Events? : Volume 33, Issue 6 (03/06/2015)

By Xu, T.

Click here to view

Book Id: WPLBN0004002572
Format Type: PDF Article :
File Size: Pages 9
Reproduction Date: 2015

Title: Is There Any Difference in Local Time Variation in Ionospheric F2-layer Disturbances Between Earthquake-induced and Q-disturbance Events? : Volume 33, Issue 6 (03/06/2015)  
Author: Xu, T.
Volume: Vol. 33, Issue 6
Language: English
Subject: Science, Annales, Geophysicae
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2015
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Hu, Y. L., Wang, F. F., Chen, Z., Wu, J., & Xu, T. (2015). Is There Any Difference in Local Time Variation in Ionospheric F2-layer Disturbances Between Earthquake-induced and Q-disturbance Events? : Volume 33, Issue 6 (03/06/2015). Retrieved from http://www.ebooklibrary.org/


Description
Description: National Key Laboratory of Electromagnetic Environment, China Research Institute of Radiowave Propagation (CRIRP), 266107 Qingdao, China. Ionospheric anomalies before earthquakes have become the subject of one of the most intensive studies in the area of ionospheric variation. The ionosphere has a large class of disturbances under quiet geomagnetic conditions, i.e., quiet time disturbances (Q disturbances). Hence, the characteristics of seismo-ionospheric anomalies obtained by statistical analysis should be compared with those of Q-disturbance events. Using the data of foF2 (F2-layer critical frequency) during the whole interval of 1978–2008 (~3 solar cycles), the local time (LT) variation in Q disturbances is investigated. The results showed that a well-pronounced nighttime peak took place for positive disturbances induced by Q-disturbance events, while positive disturbances related to earthquakes predominately occurred in the daytime, especially in the afternoon LT sector. This remarkable difference in local time variation in foF2 between the earthquake-triggered and Q-disturbance events is of great significance for the identification of ionospheric precursors.

Summary
Is there any difference in local time variation in ionospheric F2-layer disturbances between earthquake-induced and Q-disturbance events?

Excerpt
Ampferer, M., Denisenko, V. V., Hausleitner, W., Krauss, S., Stangl, G., Boudjada, M. Y., and Biernat, H. K.: Decrease of the electric field penetration into the ionosphere due to low conductivity at the near ground atmospheric layer, Ann. Geophys., 28, 779–787, <a href=http://dx.doi.org/10.5194/angeo-28-779-2010>doi:10.5194/angeo-28-779-2010, 2010.; Dabas, R. S., Rupesh, M. D., Sharma, K. M., and Pillai, K. G.: Ionospheric per-cursors observed over low latitudes during some of the recent major earthquakes, J. Atmos. Solar-Terr. Phys., 69, 1813–1824, 2007.; Davidenko, D. V.: Diagnostics of ionospheric disturbances over seismo-hazards regions (Ph.D thesis), Fiodorov Institute of Applied Geophysics, Moscow, 2013.; Dobrovolsky, I. R., Zubkov, S. I., and Myachkin, V. I.: Estimation of the size of earthquake preparation zones, Pur. Appl. Geophys., 117, 1025–1044, 1979.; Forbes, J. M., Palo, S., and Zhang, X.: Variation of the ionosphere, J. Atmos. Solar-Terr. Phys., 62, 685–693, 2000.; Harrison, R. G., Aplin, K. L., and Rycroft, M. J.: Atmospheric electricity coupling between earthquake regions and ionosphere, J. Atmos. Solar-Terr. Phys., 72, 376–381, <a href=http://dx.doi.org/10.1016/j.jastp.2009.12.004>doi:10.1016/j.jastp.2009.12.004, 2010.; He, L. M., Wu, L. X., Pulients, S. A., Liu, S. J., and Yang, F.: A nonlinear background removal method for seismo-ionospheric anomaly analysis under a complex solar activity scenario: A case study of the M9.0 Tohoku earthquake, Adv. Space, Res. 50, 211–220, 2012.; He, L. M., Wu, L. X., Santis, A. D, Liu, S. J., and Yong, Y.: Is there a one to one correspondce between ionospheric anomalies and large earthquakes along Longmenshan faults, Ann. Geophys., 32, 187–196, 2014.; Heki, K.: Ionospheric electron enhancement preceding the 2011 Tohoku-Oki earthquake, Geophys. Res. Lett., 38, L17312, <a href=http://dx.doi.org/10.1029/2011GL0447908>doi:10.1029/2011GL0447908, 2011.; Hu, Y. L.: Primary study on ionospheric precursors of earthquakes with ionospheric data in China (Master thesis), CRIRP, 2011 (in Chinese).; Hu, Y. L., Xu. T., and Wu, J.: Removing solar radiation based on the empirical mode decomposition method for seismo-ionospheric anomaly before the M9.0 Tohoku earthquake, Chin. J. Space Res., 33, 518–524, 2013.; Kamogawa, K. and Kakinami, Y.: Is an ionospheric electron enhancement preceding the 2011 Tohoku-Oki earthquake a precursor?, J. Geophys. Res., 118, 1751–17549, <a href=http://dx.doi.org/10.1002/jgra50118>doi:10.1002/jgra50118, 2013.; Kim, V. P., Khegai, V. V., and Illich-Svitych, P. V.: On one possible ionospheric precursor of earthquake, Phys. Solid Earth, 30, 223–226, 1994.; Kon, S., Nishihashi, M., and Hattori, K.: Ionospheric anomalies possibly associated with $M\ge 6.0$ earthquakes in the Japan area during 1998–2010: case studies and statistical study, J. Asian Earth Sci., 41, 410–420, 2011.; Kuo, C. L., Lee, L. C., and Huba, J. D.: An improved coupling model for the lithosphere-atmosphere-ionosphere system, J. Geophys. Res., 119, 3189–3205, <a href=http://dx.doi.org/10.1002/2013JA019392>doi:10.1002/2013JA019392, 2014.; Lastovicka, J.: Forcing of the ionosphere by waves from below, J. Atmos. Solar-Terr. Phys., 68, 479–497, 2006.; Le, H., Liu, J. Y., and Liu, L.: A statistical analysis of ionospheric anomalies before 736 M6.0+ earthquakes during 2002–2010, J. Geophys. Res., 116, A02303, <a href=http://dx.doi.org/10.1029/2010JA015781>doi:10.1029/2010JA015781, 2011.; Li, M. and Parrot, M.: Statistical analysis of an ionospheric parameter as a base for earthquake prediction, J. Geophys. Res., 118, 3731–3739, <a href=http://dx.doi.org/10.1002/jgra>doi:10.1002/jgra, 2013.; Liu, J. Y., Chuo, Y. J., Shan, S. J., Tsai, Y. B., Chen, Y. I., Pulinets, S. A., and Yu, S. B.: Pre-earthquake ionospheric anomalies registered by continuous GPS TEC measurements, An


 

Click To View

Additional Books


  • Surface Buoyancy Flux in Bay of Bengal a... (by )
  • Observations of Magnetic Flux Ropes Duri... (by )
  • 3-d Mesoscale Mhd Simulations of a Cusp-... (by )
  • Preface: Soho 20 – Transient Events on t... (by )
  • Solar Activity Explored with New Wavelet... (by )
  • Effects of Solar Wind Density on Auroral... (by )
  • Thermospheric Winds and Temperatures Abo... (by )
  • Morphology of Nmf2 Nighttime Increases i... (by )
  • Rayleigh Lidar Observations of Enhanced ... (by )
  • Empirical Reconstruction and Long-durati... (by )
  • Zonal Wave Numbers 1-5 in Planetary Wave... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.