Author:
Daniel M. G.,Aleem K. F.,Funtua I. F.,Haruna Y. S.,Effiom I. U.
Abstract
Determining the vertical component is an essential step. However, due to the exact elevations in relation to a reference surface (e.g., mean sea level), obtaining it is expensive and technically difficult. Through the integration of mobile app technology for surveying and geodetic applications, this research investigated a novel way to on-site geoid calculation. The study, which was carried out in Port Harcourt, Lagos, and Bauchi, effectively created a mobile application utilizing the EGM2008 model and showed that it was more accurate than previous models at capturing geoid and orthometric heights. Despite some non-linear variances brought on by topographical characteristics, the app demonstrated a good correlation between app-generated and observed orthometric heights. In particular, the EGM08 model app routinely beat the SATLEVEL (MAE = 0.011983 in Port Harcourt and 0.060568 in Lagos) and 7-parameters models (MAE = 0.584951 in Port Harcourt and 2.140581 in Lagos). The study concluded that this integrated approach could revolutionize geodetic fieldwork by giving surveyors precise and dependable tools. It also suggests practical implementation, collaboration, and ongoing testing.
Publisher
African - British Journals
Reference26 articles.
1. Abdulrahman, F.H. (2021). Determination of the Local Geoid Model in Duhok Region, University of Duhok Campus as a Case study, Ain Shams Engineering Journal, Volume 12, Issue 2, 2021, Pages 1293-1304, ISSN 2090-4479, https://doi.org/10.1016/j.asej.2020.10.004. (https://www.sciencedirect.com/science/article/pii/S2090447920302306)
2. Abeho D.R., Hipkin R. & Tulu B.B. (2013). Evaluation of EGM2008 by means of GPS/Levelling in Uganda. South African Journal of Geomatics, 3(3), pp. 272–284.
3. Aleem, K. F. (2013). Satlevel Collocation Model for Production of Contour Map of Yanbu Industrial City, Saudi Arabia. Journal of Emerging Trends in Engineering and Applied Sciences. (JETEAS) 4(2): 156-161 April 2013. Available online http://jeteas.scholarlinkresearch.org/articles/Satlevel%20Collocation%20Model%20for%20Production.pdf
4. Aleem, K. F. (2014). Adaptation of a Global Orthometric Height Model to Local Height Datum Using 'Satlevel' Collocation Ph. D Thesis, Department of Surveying and Geoinformatics, School of Post graduates Studies, University of Lagos, Nigeria.
5. Arana, D., Camargo, P.O. & Guimarães, G.N. (2017). Hybrid Geoid Model: Theory and Application in Brazil. An Acad Bras Cienc. 2017 Jul-Sep;89(3):1943-1959. doi: 10.1590/0001-3765201720160802. PMID: 28954175.