Determination of local geometric geoid model for Kuwait-Reference-Cited by-同舟云学术

Determination of local geometric geoid model for Kuwait

Published:2022-07-23 Issue:4 Volume:16 Page:393-400
ISSN:1862-9024
Container-title:Journal of Applied Geodesy
language:en
Short-container-title:

Author:

Zaki Ahmed¹,Elberry Yasmeen²,Al-Ajami Hamad³,Rabah Mostafa²,Abd El Ghany Rasha²

Affiliation:

1. Civil Engineering Department, Faculty of Engineering , 501253 Delta University for Science and Technology , Gamasa , Egypt

2. Department of Civil Engineering, Benha Faculty of Engineering , Benha University , Benha , Egypt

3. Member of Training Authority , 62824 Public Authority for Applied Education and Training, Adailiyah , Safat , Kuwait

Abstract

Abstract Determining a precise local geoid is particularly important for converting the Global Navigation Satellite System (GNSS) heights to orthometric heights. The geometric method for computing the geoid has been extensively used for a comparatively small region, which, in some points, interpolates geoid heights based on GNSS-derived heights and levelling heights. Several considerations should be considered when using the geometric method to increase the accuracy of a local geoid. Kuwait is used as a test area in this paper to investigate several features of the geometric method. The achievable precision is one of these aspects, the role of the interpolation method, global geopotential models, and the influence of the topographic effect. The accuracy of the local geoid can be substantially enhanced by integrating a geopotential model with a digital terrain model of the research region. It is possible to get a precision of 2–3 cm.

Publisher

Walter de Gruyter GmbH

Subject

Earth and Planetary Sciences (miscellaneous),Engineering (miscellaneous),Modeling and Simulation

Link

https://www.degruyter.com/document/doi/10.1515/jag-2022-0017/pdf

Reference66 articles.

1. B. Hofmann-Wellenhof and H. Moritz, Physical Geodesy. Springer Science and Business Media, 2006.

2. W. Torge and J. Müller, Geodesy. Walter de Gruyter, 2012.

3. F. Sansò and M. G. Sideris, Geoid determination: theory and methods. Springer Science and Business Media, 2013.

4. A. Zaki and S. Mogren, “A high-resolution gravimetric geoid model for Kingdom of Saudi Arabia,” Surv. Rev., pp. 1–16, 2021, doi: 10.1080/00396265.2021.1944544.

5. H. Al-Ajami, A. Zaki, M. Rabah, and M. El-Ashquer, “A High-Resolution Gravimetric Geoid Model for Kuwait Using the Least-Squares Collocation,” Front. Earth Sci., vol. 9, 2022, doi: 10.3389/feart.2021.753269.