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RISRefinement of Gravimetric Geoid Using GPS and Leveling Data
Publisher: American Society of Civil Engineers
Abstract: A gravimetric geoid model does not allow the accurate transformation of Global Positioning System (GPS) ellipsoidal heights to Australian Height Datum (AHD) heights in the Perth region of Western Australia. This is ...
Combined Analysis of Real-Time Kinematic GPS Equipment and Its Users for Height Determination
Publisher: American Society of Civil Engineers
Abstract: Ellipsoidal and Australian Height Datum heights have been determined for a 60-point control network from five base stations by three separate users using three different makes of real-time kinematic (RTK) global positioning ...
Validation of Vincenty’s Formulas for the Geodesic Using a New Fourth-Order Extension of Kivioja’s Formula
Publisher: American Society of Civil Engineers
Abstract: Vincenty’s (1975) formulas for the direct and inverse geodetic problems (i.e., in relation to the geodesic) have been verified by comparing them with a new formula developed by adapting a fourth-order Runge-Kutta scheme ...
Comparative Review of Molodensky–Badekas and Burša–Wolf Methods for Coordinate Transformation
Publisher: ASCE
Abstract: J. Badekas reinterpreted M. S. Molodensky’s three-dimensional similarity transformation as a vector solution using a centroid. The solution has since been (mis)interpreted by some others with inconsistent reference to the ...
Comparison of Remove-Compute-Restore and University of New Brunswick Techniques to Geoid Determination over Australia, and Inclusion of Wiener-Type Filters in Reference Field Contribution
Publisher: American Society of Civil Engineers
Abstract: The commonly adopted remove-compute-restore (RCR) technique for regional gravimetric geoid determination uses the maximum degree of a combined global geopotential model and regional gravity data via the spherical Stokes ...