Developing a precise geoid model for hydrographic surveying of the River Nile Implementation of HARN in evaluating the consistency of the different adjustment trials of the Egyptian geodetic network Comparative study for different transformation models applied on geodetic coordinate systems A Precise Integrating GPS/Gravity Geoid Analysis of the Established Egyptian National Gravity Standardization Network of 1997 Improving The Accuracy of TM Projection An Alternative Approach for Map Unification of The GPS Work in Egypt Productivety Analysis for Obtaining Orthometric Heights Without Leveling in Egypt Geodynamical Studies Using GPS Measurement at the Area Around Greater Cairo, Egypt Which Geoid Fits Egypt Better Enhancement of the Gravimmetric Geoid of Egypt (Geoid95) Using GPS Observations Towards Orthometric Heights Determination From Applications of Gravimmetric Geoid (GEOID95) Combined With GPS Observations in Egypt CREATION AND VERIFICATION OF DIGITAL ELEVATION MODEL (DEM) APPLIED TO SINAI PENINSULA Investigating the Behaviour of the Earth’s Crust in Sinai Peninsula after the Earthquake of 1995 Some Proposals for Solving the Incompatibility Problem Between Projected Map Coordinates And the Corresponding Ground Values Analysis of the Established Egyptian National Gravity Standardization Network of 1997 (ENGSN97) Precision Investigation of the GPS Results Based on Practical Observations IMPROVING THE ACCURACY OF TM PROJECTION BY REARRANGING ITS EQUATIONS AND USING VISUAL C++ LANGUAGE AN ALTERNATIVE APPROACH FOR MAP PROJECTION SYSTEM USED IN EGYPT THE USE OF GPS TECHNOLOGY IN ESTABLISHING THIRD ORDER GEODETIC NETWORKS IN EGYPT DEVELOPMENT OF NEW SETS OF TRANSFORMATION PARAMETERS IN EGYPT (ETP97) FOR TRANSFERING GPS DATA INTO THE EGYPTIAN GEODETIC DATUM OBTAINING ORTHOMETRIC HEIGHTS WITH HIGH ACCURACY BY GPS OBSERVATIONS OVER SMALL AREAS IN EGYPT Simple Model for Improving the Accuracy of the Egyptian Geodetic Triangulation Network Investigating the Effect of Using the Local Datum Instead of WGS-84 in Processing the GPS Observations Some Proposals for Solving the Incompatibility Problem Between Projected Map Coordinates And the Corresponding Ground Values Remove-Restore Technique for Improving the Datum Transformation Process AN ALTERNATIVE APPROACH FOR MAP PROJECTION SYSTEM USED IN EGYPT Evaluation of GOCE Satellite only Models along the River Nile THE USE OF GPS TECHNOLOGY IN ESTABLISHING THIRD ORDER GEODETIC NETWORKS IN EGYPT Precision Investigation of the GPS Results Based on Practical Observations Assessment of GPS, GLONASS and GPS+GLONASS Processing Solutions at Different Baseline Lengths Some Proposals For Solving The Incompatibility Problem Between Projected Map Coordinates And The Corresponding Ground Values Using Radiances of High Spatial Satellite Images to Estimate The Nautical Charts for The river Nile IMPROVING THE ACCURACY OF TM PROJECTION BY REARRANGING ITS EQUATIONS AND USING VISUAL C++ LANGUAGE Some Proposals for Solving the Incompatibility Problem Between Projected Map Coordinates And the Corresponding Ground Values Investigating the Effect of Using the Local Datum Instead of WGS-84 in Processing the GPS Observations Sea Surface Slope and Variation Along the Egyptian Delta Coast Realization of the Vertical Datum in Egypt at Alexandria-using Historical and Recent Data The Relationship between Mean Sea Levels of the Mediterranean and the Red Seas through Port Said and Sues Establishment a Prototype-Two Dimensions Tracking Navigation System Based on Dead Reckoning Tools Remove-Restore Technique for Improving the Datum Transformation Process Utilization High Spatial Satellite Images Reflectance’s to Estimate the Nautical Charts for the Nile River Investigating the correlation between the Tides and the Meteorological Conditions using Real Observations at Alexandria Proposals for evaluating the observed gravity field data Absolute Sea Level Rise Estimation at Alexandria Using Tide Records and GPS Observations Estimating Earth’s Surface Deformation from GPS and DInSAR Data Integration Using GCPs to validate DEM generated by InSAR data