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Deformation Integrity Monitoring for GNSS Positioning Services with MONIKA: Concept, Realization & Results

Explore the scalable hazard monitoring approach by the Karlsruhe team for GNSS positioning services, including software features, mathematical models, SAPOS-BW & EUREF solutions, and further developments.

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Deformation Integrity Monitoring for GNSS Positioning Services with MONIKA: Concept, Realization & Results

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  1. Deformation Integrity Monitoring forGNSS-Positioning Servicesincluding a Scalable Hazard Monitoringby the Karlsruhe Approach (MONIKA) - Concept, Realisation and Results - Speaker: Dipl.Ing. Peter Spohn

  2. Content 3. MONIKA Software 3.1 Data interfaces 3.2 Baseline processing 3.3 Epoch definition 3.4 Epoch adjustment 3.5 Plate-Rotation 3.6 Deformation analysis 3.7 Automatications 2. Mathematical Model 2.1 Step 1 2.2 Step 2 2.3 Step 3 2.4 Transformations 2.5 Step 4 2.6 Further analysis 1. Introduction 4. SAPOS-BW 2008 Solutions 5. EUREF 2008 Solutions 6. Further Developments

  3. 1. Introduction - GNSS positioning services (ex. SAPOS) - GNSS networks (ITRF, EUREF, MOLDPOS…) 1. Introduction

  4. 1. Introduction How to control reference points? Common solutions: - Network adjustment with one fixpoint and coordinate differences - Network adjustment with Helmert transformation and coordinate comparing  not very sensitive! MONIKA solution: - Deformation analysis with all reference points  highly sensitive!

  5. 2. Mathematical Model 2. Mathematical Model Overview

  6. 2. Mathematical Model • 2.1 Step 1 - Raw-Data-Processing • RINEX-Data • to baselines / networks 2. Mathematical Model • 2.2 Step 2 - Epoch definition • suggested deformations • total time span • of the analysis

  7. 2. Mathematical Model 2.3 Step 3 - 3D Network-Adjustment • Input: Baselines/Sessions • 3D Network adjustment • Quality control • Output: Epochs

  8. 2. Mathematical Model 2.3 Transformations • Tectonic plate rotation of all epochs to one reference time (fixed networks) • In case of free networks, an automatical S-Transformation is calculated to get an compareable network datum for all epoches

  9. 2. Mathematical Model 2.4 Step 3 - Deformation Analysis • Model of a multiepochal and multivariate, coordinate depending deformation analysis

  10. 2. Mathematical Model • Expension of the mathematical model i-th reference point in the k-th epoch Deformation values of all reference points • Testvalue for the reference points If a significant deformation is found, a new deformation analysis is calculated (iterative datasnooping process)

  11. 2. Mathematical Model Further calculations • Multiple coordinate differences • 3D/2D confidence areas • Network sensivity • Object point tests • Epoch tests

  12. 2. Mathematical Model 2.5 Further analysis • Time series • Kalman filtering

  13. 3. MONIKA Software 3. MONIKA Software Overview

  14. 3. MONIKA Software 3.1 Data interfaces • Interfaces: • RINEX-Data • SINEX-Data • free ASCII-Interfaces • (Baselines, Epochdata, ...) • 3.2 Baseline processing • WA1 (Wanninger Software), directly supported • Bernese 5.0, supported via SINEX-Interface • other baseline processing software

  15. 3. MONIKA Software 3.3 Epoch definition • Input-Data • Sessions/Baselines • SINEX-Data with timestamps Expected deformations?

  16. 3. MONIKA Software 3.4 Epoch adjustment • Input-Data • Sessions/Baselines • SINEX-Data • Epoch timespan • 3D Epoch adjustment with GPS3D • Output-Data • Coordinates with covariance matrix (epoch) • Detailed HTML-protocol and visualization

  17. 3. MONIKA Software 3.5 Plate rotation Necessary when large GNSS-networks or a long timespan is calculated

  18. 3. MONIKA Software 3.6 Deformation Analysis • Input-Data • Epochs (free interface) • Deformation Analysis • Iterative datasnooping • Final deformation analysis • Output-Data • Coordinates, Cxx matrix • GOCA-Interface • Visualization • Time series • HTML-Protocol • GoogleEarth

  19. 3. MONIKA Software Overview

  20. 3. MONIKA Software 3.7 Automatications • Automatic epoch generation • Input: SINEX-Data • Output: Epochs • Automatic deformation analysis calculation • Input: Epochs • Output: Solutions are saved in a MONIKA-Savefile, HTML-Protocol, individual Interface-Files • Automatic visualisation (GOCA-Earth, Addon) • Input: Interface file • Output: Visualisation in GoogleEarth + flexible folder-based file handling

  21. 4. SAPOS-BW 2008 Solutions 4. SAPOS-BW 2008 GNSS reference network in Germany Baden-Württemberg - area: 200 x 200 km - 36 stations - free network

  22. 4. SAPOS-BW 2008 Solutions horizontal sensitivity ~ 2 mm 4. SAPOS-BW 2008 seasonal movement in the summer months

  23. 4. SAPOS-BW 2008 Solutions vertical sensitivity ~ 6 mm 4. SAPOS-BW 2008 displacement because of an antenna change

  24. 5. EUREF 2008 Solutions 5. EUREF 2008 EUREF Reference Network - area: ~ 4000x3000 km - ~74 stations - fixed network

  25. 5. EUREF 2008 Solutions 5. EUREF 2008  horizontal confidence belt ~ 2 - 5 mm, POUS (Poustka, CZ)

  26. 5. EUREF 2008 Solutions KARL (Karlsruhe, DE), light seasonal movement 5. EUREF 2008 spring 2008 summer 2008 winter 2008

  27. 6. Further Developments • GNSS-based longterm monitoring of geodynamic active earthquake zones 6. Further Developments Basel, 1356 • Implementation of virtual sensors • More complex models • for ex. deformation of point groups and areas

  28. MONIKA MONIKA

  29. End Thank you for your attention ! Any questions?

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