Review and Update of the Palestinian GNSS Network (1999)

Abstract

The aim of this project is to conduct a strategic review, update and observe the Palestinian geodetic control framework during 2017. This thesis identifies the issues that should be addressed during that review, and the relative priority of those issues. Palestinian grid 1923 existing geodetic framework is a reflection of the development needs of the country and the available technology at the time. It is a framework used predominately by surveyors for control of a diversity of projects covering Palestine. These mapping, engineering and infrastructure projects depend on the availability of an accessible, homogeneous statewide geodetic framework with consistent and accurate horizontal and vertical coordinates. The advent of sub-metre positioning from the GPS satellite constellation has provided real time, active and accurate positioning information to the surveying industry and the wider community. Surveyors still need to relate their GPS position to the existing geodetic framework, while general users calibrate their measurements against the current framework coordinates. Calibration is essential to ensure measurements are on the correct datum and relate to the existing datasets which are based on the Palestinian grid 1923. GPS technology has advanced to the stage where horizontal and vertical position can be determined to a high accuracy through a network of Continuously Operating Reference Stations (CORS). Future satellite systems to be launched over the next decade offer continuity of services and improved real-time positional information. The USA, Canada, Great Britain, Europe have operational CORS networks, while These countries are maintaining a core framework of ground survey marks from their existing geodetic infrastructure to support survey needs and allow calibration. Uses include asset management, machine control, tectonic plate monitoring, mapping and GIS applications.