AUSGeoid98 geoid model of Australia: data treatment, computations and comparisons with GPS-levelling data

The AUSGeoid98 gravimetric geoid model of Australia has been computed using data from the EGM96 global geopotential model, the 1996 release of the Australian gravity database, a nationwide digital elevation model, and satellite altimeter-derived marine gravity anomalies. The geoid heights are on a 2...

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Main Authors:	Featherstone, Will, Kirby, Jon, Kearsley, A., Gilliland, J., Johnston, G., Steed, J., Forsberg, R., Sideris, M.
Format:	Journal Article
Published:	Springer Verlag 2001
Subjects:	Practical Geoid Computation - Gravity Data Processing - Modified Kernels - Australia -
Online Access:	http://hdl.handle.net/20.500.11937/41995

id	curtin-20.500.11937-41995
recordtype	eprints
spelling	curtin-20.500.11937-419952017-09-13T14:22:51Z AUSGeoid98 geoid model of Australia: data treatment, computations and comparisons with GPS-levelling data Featherstone, Will Kirby, Jon Kearsley, A. Gilliland, J. Johnston, G. Steed, J. Forsberg, R. Sideris, M. Practical Geoid Computation - Gravity Data Processing - Modified Kernels - Australia - The AUSGeoid98 gravimetric geoid model of Australia has been computed using data from the EGM96 global geopotential model, the 1996 release of the Australian gravity database, a nationwide digital elevation model, and satellite altimeter-derived marine gravity anomalies. The geoid heights are on a 2 by 2 arc-minute grid with respect to the GRS80 ellipsoid, and residual geoid heights were computed using the 1-D fast Fourier transform technique. This has been adapted to include a deterministically modified kernel over a spherical cap of limited spatial extent in the generalised Stokes scheme. Comparisons of AUSGeoid98 with GPS and Australian Height Datum (AHD) heights across the continent give an RMS agreement of -0.364 m, although this apparently large value is attributed partly to distortions in the AHD. 2001 Journal Article http://hdl.handle.net/20.500.11937/41995 10.1007/s001900100177 Springer Verlag restricted
repository_type	Digital Repository
institution_category	Local University
institution	Curtin University Malaysia
building	Curtin Institutional Repository
collection	Online Access
topic	Practical Geoid Computation - Gravity Data Processing - Modified Kernels - Australia -
spellingShingle	Practical Geoid Computation - Gravity Data Processing - Modified Kernels - Australia - Featherstone, Will Kirby, Jon Kearsley, A. Gilliland, J. Johnston, G. Steed, J. Forsberg, R. Sideris, M. AUSGeoid98 geoid model of Australia: data treatment, computations and comparisons with GPS-levelling data
description	The AUSGeoid98 gravimetric geoid model of Australia has been computed using data from the EGM96 global geopotential model, the 1996 release of the Australian gravity database, a nationwide digital elevation model, and satellite altimeter-derived marine gravity anomalies. The geoid heights are on a 2 by 2 arc-minute grid with respect to the GRS80 ellipsoid, and residual geoid heights were computed using the 1-D fast Fourier transform technique. This has been adapted to include a deterministically modified kernel over a spherical cap of limited spatial extent in the generalised Stokes scheme. Comparisons of AUSGeoid98 with GPS and Australian Height Datum (AHD) heights across the continent give an RMS agreement of -0.364 m, although this apparently large value is attributed partly to distortions in the AHD.
format	Journal Article
author	Featherstone, Will Kirby, Jon Kearsley, A. Gilliland, J. Johnston, G. Steed, J. Forsberg, R. Sideris, M.
author_facet	Featherstone, Will Kirby, Jon Kearsley, A. Gilliland, J. Johnston, G. Steed, J. Forsberg, R. Sideris, M.
author_sort	Featherstone, Will
title	AUSGeoid98 geoid model of Australia: data treatment, computations and comparisons with GPS-levelling data
title_short	AUSGeoid98 geoid model of Australia: data treatment, computations and comparisons with GPS-levelling data
title_full	AUSGeoid98 geoid model of Australia: data treatment, computations and comparisons with GPS-levelling data
title_fullStr	AUSGeoid98 geoid model of Australia: data treatment, computations and comparisons with GPS-levelling data
title_full_unstemmed	AUSGeoid98 geoid model of Australia: data treatment, computations and comparisons with GPS-levelling data
title_sort	ausgeoid98 geoid model of australia: data treatment, computations and comparisons with gps-levelling data
publisher	Springer Verlag
publishDate	2001
url	http://hdl.handle.net/20.500.11937/41995
first_indexed	2018-09-06T23:16:39Z
last_indexed	2018-09-06T23:16:39Z
_version_	1610901932834029568

AUSGeoid98 geoid model of Australia: data treatment, computations and comparisons with GPS-levelling data

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