Abstract
In geoid computation, terrain correction (TC) removes topographic gravitational attraction but is computationally intensive. This research proposes two hybrid routines. The first approach calculates Individual Zonal Radius (IZR) for grid cells with slopes >45°. For grid cells with IZR larger than twice the standard deviation of IZR, a hybrid approach with inner zonal radius equal to Minimum Zonal Radius (MZR) is used; for other cells inner zone radius will be twice the standard deviation of IZR. The second routine uses hybrid approach with an inner zone radius equal to MZR for cells with slopes >35° and a spectral method otherwise.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
