HR: 09:30h
AN: G41A-07    [Abstracts]
TI: Deformation integrity monitoring for GNSS positioning services including local, regional and large scale hazard monitoring - the Karlsruhe approach and software(MONIKA)
AU: * Jaeger, R
EM: reiner.jaeger@goca.info
AF: University of Applied Sciences Karlsruhe, Faculty of Geomatics Moltkestrasse 30 D-76133 Karlsruhe, Karlsruhe, DEU D-76133, Germany
AB: GNSS-positioning services like SAPOS/ascos in Germany and many others in Europe, America and worldwide, usually yield in a short time their interdisciplinary and country-wide use for precise geo-referencing, replacing traditional low order geodetic networks. So it becomes necessary that possible changes of the reference stations' coordinates are detected ad hoc. The GNSS-reference-station MONitoring by the KArlsruhe approach and software (MONIKA) are designed for that task. The developments at Karlsruhe University of Applied Sciences in cooperation with the State Survey of Baden-Württemberg are further motivated by a the official resolution of the German state survey departments' association (Arbeitsgemeinschaft der Vermessungsverwaltungen Deutschland (AdV)) 2006 on coordinate monitoring as a quality-control duty of the GNSS-positioning service provider. The presented approach can - besides the coordinate control of GNSS-positioning services - also be used to set up any GNSS-service for the tasks of an area-wide geodynamical and natural disaster-prevention service. The mathematical model of approach, which enables a multivariate and multi-epochal design approach, is based on the GNSS-observations input of the RINEX-data of the GNSS service, followed by fully automatic processing of baselines and/or session, and a near-online setting up of epoch-state vectors and their covariance-matrices in a rigorous 3D network adjustment. In case of large scale and long-term monitoring situations, geodynamical standard trends (datum-drift, plate-movements etc.) are accordingly considered and included in the mathematical model of MONIKA. The coordinate-based deformation monitoring approach, as third step of the stepwise adjustments, is based on the above epoch-state vectors, and - splitting off geodynamics trends - hereby on a multivariate and multi-epochal congruency testing. So far, that no other information exists, all points are assumed as being stable and congruent reference points. Stations, which a priori assumed as moving - in that way local monitoring areas can be included- are to be monitored and analyzed in reference to the stable reference points. In that way, a high sensitivity for the detection of GNSS station displacements, both for assumed stable points, as well as for a priori moving points, can be achieved. The results for the concept are shown at the example of a monitoring using the MONINKA-software in the 300 x 300 km area of the state of Baden-Württemberg, Germany.
UR: http:www.goca.info
DE: 1209 Tectonic deformation (6924)
DE: 1211 Non-tectonic deformation
DE: 1240 Satellite geodesy: results (6929, 7215, 7230, 7240)
DE: 1295 Integrations of techniques
SC: Geodesy [G]
MN: 2007 Joint Assembly