TS 2F – Geodetic Networks and Data Analysis Gilad Even-Tzur Two-Steps Analysis of Movement of the Kfar-Hanassi Network Surveyors Key Role in Accelerated Development

The small EDM network at Kfar-Hanassi was established across the Dead Sea Rift (DSR) in the northern part of Israel, where displacements of several millimeters per year between the Sinai sub-plate and the Arabian plate are expected. The results of five campaigns carried out between 1990 and 2008 are presented. Four campaigns were measured annually between 1990 and 1993 using a Mekometer ME5000. An additional campaign was carried out in the summer of 2008 using a Leica TC2002. The large time interval between the campaigns contributed dramatically to the ability of the Kfar-Hanassi network to detect movements. The distance measurements were analyzed by a Two-Step analysis. In the first step the distance measurements were processed sequentially without modeling the variations in the plane position of the network benchmarks. In the second step the variations in the network geometry were modeled by means of a physical model. In this study a linear model of movements was tested to describe the plane position of the network benchmarks. The results indicate a left-lateral motion along the DSR with a rate of a few tenths of millimeters per year