Your SlideShare is downloading. ×
0
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Lagios_et_al_IGARSS_2011.ppt
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Lagios_et_al_IGARSS_2011.ppt

901

Published on

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
901
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
6
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. NATIONAL AND KAPODISTRIAN UNIVERSITY OF ATHENS FACULTY OF GEOLOGY & GEOENVIRONMENT DEPARTMENT OF GEOPHYSICS & GEOTHERMICS Laboratory of Remote Sensing GROUND DEFORMATION STUDIES IN CEPHALONIA ISLAND (WESTERN GREECE) BASED ON DGPS & PS INTERFEROMETRY Evangelos Lagios, Vassilis Sakkas, Fabrizio Novali, Alfio Fumagalli & Sara Del Conte
  • 2.
    • The Central Ionian Islands GPS Networks
    • 24 bench marks in Cephalonia
    • 14 bench marks in Zakynthos
    • 4 bench marks in Ithaca
  • 3. Seismic Activity 1964- 2006 ( M > 3.6 ) Seismic Activity 2006–Present ( M > 3.6 )
  • 4.
    • Lefkas Earthquake
    • August 14, 2003
    • Mw = 6.3
    • Zakynthos Seismic Activity
    • March- April 2006
  • 5. Cephalonia Island
    • 24 GPS bench marks
  • 6. DGPS Results 2001 - 2003 2003 - 2010
  • 7. 2001-2010
  • 8. PSInSAR TM product of Cephalonia Island Processed by Tele-Rilevamento Europa (TRE)
    • ERS descending:
      • 39 images
      • 4/19/1992 - 2/27/2000
    • ENVISAT descending:
      • 21 images
      • 6/25/2003 - 11/5/2008
  • 9. Reference Station (No 06) ITRF 2005
  • 10. ERS PS Descending (1992 – 2000) Velocity Field (mm/yr)
  • 11. ENVISAT PS Descending (2003 - 2008) Velocity Field (mm/yr)
  • 12. ERS Velocity Standard Deviation
  • 13. ENVISAT Velocity Standard Deviation
  • 14. V < 0 α < 0 V < 0 α > 0 V > 0 α < 0 V > 0 α > 0 PS Time-Series
  • 15. ERS Acceleration Field V < 0 V > 0
  • 16. ENVISAT Acceleration Field V < 0 V > 0
  • 17. PS TIME-SERIES
  • 18. Identification of Critical Area based on Observed Seismic Energy Released Star indicates the center of the two circles indicating L ow (inside small circle) and High seismic energy release (area between the two circles).
  • 19. Identification of Critical Area based on Modelling of Observed Seismic Accelerating Strain
  • 20. Critical Time Estimation based on Temporal Analysis of Seismicity
  • 21. Critical Time Estimation based on Accelerating Seismicity

×