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Services - Geoid Repository


Regional Models

Israel (ILUM 1.2)


  Authors: G. Steinberg, Y. Tuchin     Created: 2008    Resp: G. Steinberg (Survey of Israel) 
      Status: PRIVATE    
Description:
ILUM 1.2 is a geoid model for Israel computed by interpolating GPS/levelling data. In particular a Kriging interpolation method was applied. Whereas the ILUM 1.1 model improves ILUM 1.0 especially in the the southern area close to Eilat, the ILUM 1.2 model is an update of ILUM 1.1 in the Negev area and in the Beit-Shean valley, where GPS/levelling measurements were not conducted previously. Altogether the ILUM 1.2 undulation surface was constructed on the basis of 849 measurements. The model accuracy is evaluated by comparing it with 7 pairs of benchmarks, located from the North of the country to the South. The rms of the discrepancies is equal to 5.4 cm.

References:
Y. Tuchin (2006). Development of the Geoid-Ellipsoid Separations Model in Israel. Proceedings of the XXIII International FIG Congress, 8-13 October 2006, Munich, Germany.
G. Steinberg, Y. Tuchin (2009). Two Years Experience with the Israeli Official Geoid Undulations Model. Proceedings of the FIG Working Week 2009, Surveyors Key Role in Accelerated Development, 3-8 May 2009, Eilat, Israel (see presentation).


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