EUREF'06: National Report of Switzerland New Developments in Swiss National Geodetic Surveying

摘要

The performance of the SLR station in Zimmerwald, quantified by the number of observed satellites, could be further improved due to a refined automated observation procedure in combination with the CCD observations. The Swiss permanent GPS network AGNES is operating well, the availability of the data being 99.7%. With a new station in Zermatt, AGNES now consists of 30 stations. The Permanent Network Analysis Center (PNAC) completed the redesign of the analysis procedures and the switch to the Bernese GPS Software Version 5.0 in close cooperation with CODE at the Astronomical Institute at the University of Berne (AIUB). The combined analysis of ellipsoidal heights derived from GPS observations in the 3D reference network (LV95), from orthometric heights in the gravity-related national vertical reference frame (LHN95) together with the newly developed and released Swiss geoid model (CHGeo2004) could be successfully finished. The geodetic web services are being continuously improved. A preliminary kinematic 3D model of Switzerland derived from geodetic measurements could be calculated in the project S wiss4D. A GIS extension was developed with the aim of maintaining and managing the national boundary. The interactive comparison of the data with those of the cadastral surveys and the neighbouring countries was started.