Geoidal Map and Three Dimension Surface Model
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Date
2013
Authors
Olaleye, J. B.
Olusina, J.O
Badejo, O.T
Aleem, K.F
Journal Title
Journal ISSN
Volume Title
Publisher
International Journal of Computational Engineering Research (IJCER), Vol. 2. No. 4, pp 52-58.
Abstract
Geoidal map depicts the geoid configuration of the area under study. Data acquisition for the
production of such maps has been very tedious, time consuming and expensive with the use of
classical and conventional geoid determination methods. "Satlevel" Collocation is a new method of
geoid determination in which the ellipsoidal height from any satellite based system is combined with
orthometric height from geodetic levelling to model the geoid. The method enables the geoid to be
determined in patches. Geoid so determined can be applied with ellipsoidal height to get orthometric
height which height users always prefer. In this work, "Satlevel" Collocation model along with the
user‟s interactive computer program “Orthometric Height on Fly”, were used to generate geoidal
values in part of Port Harcourt metropolis. The generated data was used to produce the Geoidal map
of the study area using SURFER software. The map was overlaid on the Local government map of
Rivers State of Nigeria. The production of Geoidal map from "Satlevel" Collocation is easier than
the conventional methods, when the initial geoidal coefficients have been determined. This method
can be extended to other parts of Nigeria and the world at large.
Description
Scholarly article
Keywords
Geoidal Map , Surface , Three Dimension , Surfer , Satlevel Collocation , Geoid Modelling , Geoid , Research Subject Categories::TECHNOLOGY
Citation
J. B. Olaleye, J.O. Olusina, O. T. Badejo and K. F. Aleem (2013), Geoidal Map and Three Dimension Surface Model Part of Port Hacourt Metropolis from “Satlevel” Collocation Model: International Journal of Computational Engineering Research (IJCER), Vol. 2. No. 4, pp 52-58.