The efffect of GGM local geoid determination by using [KTH] method / Nurlaili Khalip

Johor is characterized as one of the states that urbanized and also has flat terrain in this country's regions. So the existence of the high-resolution geoid model is considered very important with widespread of the GPS technology in the country. In this study, a new gravimetric geoid model...

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Main Author:	Khalip, Nurlaili
Format:	Thesis
Language:	English
Published:	2019
Subjects:	Global Positioning System Geomorphology. Landforms. Terrain
Online Access:	http://ir.uitm.edu.my/id/eprint/23220/ http://ir.uitm.edu.my/id/eprint/23220/1/TD_NURLAILI%20KHALIP%20AP%20R%2019.5.PDF

id	uitm-23220
recordtype	eprints
spelling	uitm-232202019-02-19T09:21:34Z http://ir.uitm.edu.my/id/eprint/23220/ The efffect of GGM local geoid determination by using [KTH] method / Nurlaili Khalip Khalip, Nurlaili Global Positioning System Geomorphology. Landforms. Terrain Johor is characterized as one of the states that urbanized and also has flat terrain in this country's regions. So the existence of the high-resolution geoid model is considered very important with widespread of the GPS technology in the country. In this study, a new gravimetric geoid model is computed for Johor region, by applying the method that was developed by Royal Institute of Technology (KTH) Stockholm- Sweden. The method utilizes the least-squares modification (LSM) of Stokes formula. The modified Stokes formula combines the regional terrestrial gravity data together with the long-wavelength gravity information from a global gravitational model (GGM). The Digital Elevation Model (DEM), SRTM generated by NASA and the National Imagery and Mapping Agency (NIMA) also used to compute topography effects on the geoid. Four additive corrections are computed over the entire target area and applied to the approximate geoid heights obtaining the final geoid solution. The gravimetric geoid is validated by using GPS-levelling information at 62 points distributed over the whole Johor. The results will show that the standard deviation (STD) of the differences between the gravimetric and geometric geoid heights at 62 GPS-levelling points. Smaller standard deviation means the geoid is a good model for Johor region. 2019-02-18 Thesis NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/23220/1/TD_NURLAILI%20KHALIP%20AP%20R%2019.5.PDF Khalip, Nurlaili (2019) The efffect of GGM local geoid determination by using [KTH] method / Nurlaili Khalip. Degree thesis, Universiti Teknologi Mara Perlis.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Global Positioning System Geomorphology. Landforms. Terrain
spellingShingle	Global Positioning System Geomorphology. Landforms. Terrain Khalip, Nurlaili The efffect of GGM local geoid determination by using [KTH] method / Nurlaili Khalip
description	Johor is characterized as one of the states that urbanized and also has flat terrain in this country's regions. So the existence of the high-resolution geoid model is considered very important with widespread of the GPS technology in the country. In this study, a new gravimetric geoid model is computed for Johor region, by applying the method that was developed by Royal Institute of Technology (KTH) Stockholm- Sweden. The method utilizes the least-squares modification (LSM) of Stokes formula. The modified Stokes formula combines the regional terrestrial gravity data together with the long-wavelength gravity information from a global gravitational model (GGM). The Digital Elevation Model (DEM), SRTM generated by NASA and the National Imagery and Mapping Agency (NIMA) also used to compute topography effects on the geoid. Four additive corrections are computed over the entire target area and applied to the approximate geoid heights obtaining the final geoid solution. The gravimetric geoid is validated by using GPS-levelling information at 62 points distributed over the whole Johor. The results will show that the standard deviation (STD) of the differences between the gravimetric and geometric geoid heights at 62 GPS-levelling points. Smaller standard deviation means the geoid is a good model for Johor region.
format	Thesis
author	Khalip, Nurlaili
author_facet	Khalip, Nurlaili
author_sort	Khalip, Nurlaili
title	The efffect of GGM local geoid determination by using [KTH] method / Nurlaili Khalip
title_short	The efffect of GGM local geoid determination by using [KTH] method / Nurlaili Khalip
title_full	The efffect of GGM local geoid determination by using [KTH] method / Nurlaili Khalip
title_fullStr	The efffect of GGM local geoid determination by using [KTH] method / Nurlaili Khalip
title_full_unstemmed	The efffect of GGM local geoid determination by using [KTH] method / Nurlaili Khalip
title_sort	efffect of ggm local geoid determination by using [kth] method / nurlaili khalip
publishDate	2019
url	http://ir.uitm.edu.my/id/eprint/23220/ http://ir.uitm.edu.my/id/eprint/23220/1/TD_NURLAILI%20KHALIP%20AP%20R%2019.5.PDF
first_indexed	2023-09-18T23:10:19Z
last_indexed	2023-09-18T23:10:19Z
_version_	1777418758385565696

The efffect of GGM local geoid determination by using [KTH] method / Nurlaili Khalip

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