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OLG LAC Report 2013

OLG LAC Report 2013. G. Stangl 1 , S. Krauss 2 , H.-P. Ranner 2 (1) Federal Office of Metrology and Surveying (BEV) ‏ (2) Space Research Institute, Austrian Academy of Science. OLG LAC Structure. Structure

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OLG LAC Report 2013

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  1. OLG LAC Report 2013 • G. Stangl1, S. Krauss2, H.-P. Ranner2 (1) Federal Office of Metrology and Surveying (BEV)‏ (2) Space Research Institute, Austrian Academy of Science

  2. OLG LAC Structure • Structure • 1 Person + assistance , total 0.7 person years‏, 3 Linux – Workstations + 2 Virtual Workstations on Xen Servers • 2 x Bernese Software 5.0, 1x Bernese Software 5.2 • Own unix shell and perl scripts (data preparation + check, transmitting and archiving products) for automatization • Generic Mapping Tool 4.2 (map design)‏ • Matlab R2011a (signal analysis)‏ • Web page • Main Topics • Network analysis (5 networks, 300 stations)‏ • Time series analysis and velocity determination • Reprocessing • Research testbeds (earthquake precursors in the ionosphere)‏ EPN LAC Workshop Brussels 2013 2

  3. Regional Ionosphere Models • National Project 2011-2012 • Testbeds Alps + Greece • Comparison Global – Europe – Theoretical Models • NRT + Postprocessing • Improvement in sub-meter accuracy • Topic closed EPN LAC Workshop Brussels 2013 3

  4. Network Analysis Intraplate Velocities CERGOP Central Europe 25% non-EPN stations EPN LAC Workshop Brussels 2013 4

  5. Network Analysis Detailed Boundary zone GREECE : 75% non-EPN stations, mainly from NOA EPN LAC Workshop Brussels 2013 5

  6. Network Analysis Boundaries of the Arabian Plate 75% non-EPN stations, from IGS, NOA, UNAVCO Until 2013 GREECE embedded MON EPN LAC Workshop Brussels 2013 6

  7. Network Analysis - Reference EPN AMON EPN LAC Workshop Brussels 2013 7

  8. Network Analysis - Reprocessing AMON 15 old EPN stations added, total of 100 stations IGS08 PCVs + CODE orbits 2006 finished, 2005 under construction EPN LAC Workshop Brussels 2013 8

  9. Potential Earthquake Precursors from Regional TEC • Generated from GPS stations • Phase + double differences • Focus on Greece 2008-2011, 8 earthquakes with magnitude >5.5 • Partially not significant, partially geomagnetic disturbances • Larger sample needed, regional geomagnetic field needed Precursors? EPN LAC Workshop Brussels 2013 9

  10. Outlook to 2015 • Contribution to EPN no reprocessing, but subnetworks (densification) • Reprocessing of other networks and campaigns • Densified velocity and strain field in Central Europe and the Mediterranean • Projects : Earthquake precursors from the ionosphere, Multipath mitigation for Galileo antennas (2012-2013), TRF2 precipitation combined from GNSS, meteorolgy and gravity EPN LAC Workshop Brussels 2013 10

  11. Thank you

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