A Gravimetric Geoid model of Tasmania, computed using the One-dimensional Fast Fourier Transform and a Deterministically Modified Kernel

A new gravimetric estimate of the separation between the GRS80 ellipsoid and the geoid over Tasmania and surrounding seas has been made. The geoid model utilised a combination of the EGM96 global geopotential model, the 1992 release of the Australian gravity database, and a nine-second digital eleva...

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Bibliographic Details
Main Authors:	Vella, J., Featherstone, Will
Format:	Journal Article
Published:	Institution of Surveyors, Australia 1999
Subjects:	geoid computation modified kernels Tasmania
Online Access:	http://hdl.handle.net/20.500.11937/9626

id	curtin-20.500.11937-9626
recordtype	eprints
spelling	curtin-20.500.11937-96262017-01-30T11:13:52Z A Gravimetric Geoid model of Tasmania, computed using the One-dimensional Fast Fourier Transform and a Deterministically Modified Kernel Vella, J. Featherstone, Will geoid computation modified kernels Tasmania A new gravimetric estimate of the separation between the GRS80 ellipsoid and the geoid over Tasmania and surrounding seas has been made. The geoid model utilised a combination of the EGM96 global geopotential model, the 1992 release of the Australian gravity database, and a nine-second digital elevation model. The computational technique used was the one-dimensional fast Fourier transform (1D-FFT), which has been refined so as to include deterministically modified Stokes integration kernels. Comparisons were made among Global Positioning System heights, optical levelling on the Australian Height Datum (Tasmania) and several gravimetric geoid solutions at 14 points. This showed that the Vanicek and Kleusberg (1987) modification for a degree 20 spheroid and cap radius of 15 gave the smallest standard deviation of 186mm, which is a slight improvement upon the 232mm achieved when using AUSGEOID93. 1999 Journal Article http://hdl.handle.net/20.500.11937/9626 Institution of Surveyors, Australia fulltext
repository_type	Digital Repository
institution_category	Local University
institution	Curtin University Malaysia
building	Curtin Institutional Repository
collection	Online Access
topic	geoid computation modified kernels Tasmania
spellingShingle	geoid computation modified kernels Tasmania Vella, J. Featherstone, Will A Gravimetric Geoid model of Tasmania, computed using the One-dimensional Fast Fourier Transform and a Deterministically Modified Kernel
description	A new gravimetric estimate of the separation between the GRS80 ellipsoid and the geoid over Tasmania and surrounding seas has been made. The geoid model utilised a combination of the EGM96 global geopotential model, the 1992 release of the Australian gravity database, and a nine-second digital elevation model. The computational technique used was the one-dimensional fast Fourier transform (1D-FFT), which has been refined so as to include deterministically modified Stokes integration kernels. Comparisons were made among Global Positioning System heights, optical levelling on the Australian Height Datum (Tasmania) and several gravimetric geoid solutions at 14 points. This showed that the Vanicek and Kleusberg (1987) modification for a degree 20 spheroid and cap radius of 15 gave the smallest standard deviation of 186mm, which is a slight improvement upon the 232mm achieved when using AUSGEOID93.
format	Journal Article
author	Vella, J. Featherstone, Will
author_facet	Vella, J. Featherstone, Will
author_sort	Vella, J.
title	A Gravimetric Geoid model of Tasmania, computed using the One-dimensional Fast Fourier Transform and a Deterministically Modified Kernel
title_short	A Gravimetric Geoid model of Tasmania, computed using the One-dimensional Fast Fourier Transform and a Deterministically Modified Kernel
title_full	A Gravimetric Geoid model of Tasmania, computed using the One-dimensional Fast Fourier Transform and a Deterministically Modified Kernel
title_fullStr	A Gravimetric Geoid model of Tasmania, computed using the One-dimensional Fast Fourier Transform and a Deterministically Modified Kernel
title_full_unstemmed	A Gravimetric Geoid model of Tasmania, computed using the One-dimensional Fast Fourier Transform and a Deterministically Modified Kernel
title_sort	gravimetric geoid model of tasmania, computed using the one-dimensional fast fourier transform and a deterministically modified kernel
publisher	Institution of Surveyors, Australia
publishDate	1999
url	http://hdl.handle.net/20.500.11937/9626
first_indexed	2018-09-06T18:36:18Z
last_indexed	2018-09-06T18:36:18Z
_version_	1610884294509592576

A Gravimetric Geoid model of Tasmania, computed using the One-dimensional Fast Fourier Transform and a Deterministically Modified Kernel

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