Deformation Integrity Monitoring for GNSS-Positioning Services including a Scalable Hazard Monitoring by the Karlsruhe Approach (MONIKA) - Concept, Realisation and Results - Speaker: Dipl.Ing. Peter Spohn

Content 1. Introduction 4. SAPOS-BW 2008 Solutions 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 Step Step Transformations 2.5 Step Further analysis 5. EUREF 2008 Solutions 6. Further Developments

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

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

2. Mathematical Model Overview

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

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

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

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

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)

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

2. Mathematical Model Time series 2.5 Further analysis Kalman filtering

3. MONIKA Software Overview 3. MONIKA Software

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

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

3. MONIKA Software 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 3.4 Epoch adjustment

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

3. MONIKA Software 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 3.6 Deformation Analysis

3. MONIKA Software Overview

3. MONIKA Software 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 3.7 Automatications + flexible folder-based file handling

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

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

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

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

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

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

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

MONIKA

End Thank you for your attention ! Any questions?