AN ASSESSMENT OF THE IMPLICATIONS OF THE GRAVITY REDUCTION METHODS ON REGIONAL GEOID MODELLING OVER ADO EKITI
Keywords:Keywords: Long wavelength Geoid, Stokes Integral, Remove Compute Restore, Potential Field
There are several gravity reductions approaches that are available for use in geodetic applications. More so, with the rapid rate at which gravimetric geoid models are being incorporated into GNSS solutions, the need for precise regional models is becoming increasingly relevant. In this study, two gravity reduction approaches (Bouguer and Residual Terrain Model (RTM)) have been used to reduce gravity anomalies over Ado town. The reduced anomalies were then used to compute a local geoid for the study area using the conventional Stokes integral in the RCR technique. Comparison of the computed geoid by both methods with GNSS Levelling data at selected locations show that the RTM reduced anomalies produce a better geoid model than the Bouguer reduced anomalies over the study area with a RMSE of 83.2cm and 83.5cm respectively.
Keywords: Long wavelength Geoid, Stokes Integral, Remove Compute Restore, Potential Field
How to Cite
Copyright (c) 2022 Nigerian Journal of Technology
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
The contents of the articles are the sole opinion of the author(s) and not of NIJOTECH.
NIJOTECH allows open access for distribution of the published articles in any media so long as whole (not part) of articles are distributed.
A copyright and statement of originality documents will need to be filled out clearly and signed prior to publication of an accepted article. The Copyright form can be downloaded from http://nijotech.com/downloads/COPYRIGHT%20FORM.pdf while the Statement of Originality is in http://nijotech.com/downloads/Statement%20of%20Originality.pdf
For articles that were developed from funded research, a clear acknowledgement of such support should be mentioned in the article with relevant references. Authors are expected to provide complete information on the sponsorship and intellectual property rights of the article together with all exceptions.
It is forbidden to publish the same research report in more than one journal.