Repository Universitas Pakuan

Detail Karya Ilmiah Dosen

Dadan Ramdani

Judul : GLOBAL GEOPOTENTIAL MODEL EVALUATION IN SUMATERA AND JAVA

Abstrak :
GPS is used increasingly and commonly in the last past year in all aspect of live. But the height informa-
tion in GPS is not the actual height. To convert it to actual height is needed the geoid undulation. Geoid
has three wavelengths i.e. short, medium and long. From these three geoids, the long wavelength which
is obtained from the Global Geopotential Model (GGM) is the important one to determinant the geoid.
In 2008 Pavlis et al. [2012] from National Geospatial-intellegence Agancy (NGA) had established the
global model - EGM2008 which has order and degree of 2190. This global model was validated and is
used to calculate the geoid undulation worldwide. To find better GGM Validation was carried out with
comparison between the geoid undulations from GGM with the geoid undulation from GPS-Leveling
observation data. The result of this validation shows that EGM2008 in Sumatera and EGM96 from
Lemoine et al. [1998] in Java has better results compare with other GGM. The standard deviation of
the comparison of EGM2008 and GPS-Leveling is 33,4 cm which is the smallest in Sumatera and the
comparison of EGM96 and GPS-Leveling in Java with the value of 87,4 cm is the smallest but more
rougher than in Sumatera.

Tahun : 2013 Media Publikasi : Prosiding

Kategori : Prosiding No/Vol/Tahun : ACRS2013 / 1 / 2014

ISSN/ISBN : 978-1-62993-910-0

PTN/S : Universitas Pakuan Program Studi : TEKNIK GEODESI

Bibliography :
H. Abidin. Penentuan Posisi dengan GPS dan aplikasinya. PT Pradnya Paramita, 2007.
E. de Min. GM81 a fortran program for calculating geoid from global model. Not Publshed, 2003.
W. Heiskanen and H. Moritz. Physical geodesy (Book on physical geodesy covering potential theory, gravity fields,
gravimetric and astrogeodetic methods, statistical analysis, etc). Freeman, 1967.
S. Holmes and N. Pavlis. A fortran program for very-high-degree harmonic synthesis. Technical report, Technical
report for harmonic synth version 05/01/2006. National Geospatial-Intelligence Agency, Greenbelt, 2008.
F. Lemoine, S. Kenyon, J. Factor, R. Trimmer, N. Pavlis, D. Chinn, C. Cox, S. Klosko, S. Luthcke, M. Torrence,
Y. Wang, R. Williamson, E. Pavlis, R. Rapp, and T. Olson. The Development of the Joint NASA GSFC and the
National Imagery and Mapping Agency (NIMA) Geopotential Model EGM96, NASA. National Aeronautics and
Space Administration, 1998. URL http://books.google.co.id/books?id=XiYdcgAACAAJ.
N. Pavlis, S. Holmes, S. Kenyon, and J. Factor. The development and evaluation of the earth gravitational model
2008 (EGM2008). Journal of Geophysical Research: Solid Earth (1978-2012), 117(B4), 2012.
K. Prijatna and P. Soemidjan. Penentuan beda tinggi orthometrik dengan gps dan permasalahannya, 1997.

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Detail Karya Ilmiah Dosen

Dadan Ramdani

Judul	:	GLOBAL GEOPOTENTIAL MODEL EVALUATION IN SUMATERA AND JAVA
Abstrak	:	GPS is used increasingly and commonly in the last past year in all aspect of live. But the height informa- tion in GPS is not the actual height. To convert it to actual height is needed the geoid undulation. Geoid has three wavelengths i.e. short, medium and long. From these three geoids, the long wavelength which is obtained from the Global Geopotential Model (GGM) is the important one to determinant the geoid. In 2008 Pavlis et al. [2012] from National Geospatial-intellegence Agancy (NGA) had established the global model - EGM2008 which has order and degree of 2190. This global model was validated and is used to calculate the geoid undulation worldwide. To find better GGM Validation was carried out with comparison between the geoid undulations from GGM with the geoid undulation from GPS-Leveling observation data. The result of this validation shows that EGM2008 in Sumatera and EGM96 from Lemoine et al. [1998] in Java has better results compare with other GGM. The standard deviation of the comparison of EGM2008 and GPS-Leveling is 33,4 cm which is the smallest in Sumatera and the comparison of EGM96 and GPS-Leveling in Java with the value of 87,4 cm is the smallest but more rougher than in Sumatera.
Tahun	:	2013	Media Publikasi	:	Prosiding
Kategori	:	Prosiding	No/Vol/Tahun	:	ACRS2013 / 1 / 2014
ISSN/ISBN	:	978-1-62993-910-0
PTN/S	:	Universitas Pakuan	Program Studi	:	TEKNIK GEODESI
Bibliography	:	H. Abidin. Penentuan Posisi dengan GPS dan aplikasinya. PT Pradnya Paramita, 2007. E. de Min. GM81 a fortran program for calculating geoid from global model. Not Publshed, 2003. W. Heiskanen and H. Moritz. Physical geodesy (Book on physical geodesy covering potential theory, gravity fields, gravimetric and astrogeodetic methods, statistical analysis, etc). Freeman, 1967. S. Holmes and N. Pavlis. A fortran program for very-high-degree harmonic synthesis. Technical report, Technical report for harmonic synth version 05/01/2006. National Geospatial-Intelligence Agency, Greenbelt, 2008. F. Lemoine, S. Kenyon, J. Factor, R. Trimmer, N. Pavlis, D. Chinn, C. Cox, S. Klosko, S. Luthcke, M. Torrence, Y. Wang, R. Williamson, E. Pavlis, R. Rapp, and T. Olson. The Development of the Joint NASA GSFC and the National Imagery and Mapping Agency (NIMA) Geopotential Model EGM96, NASA. National Aeronautics and Space Administration, 1998. URL http://books.google.co.id/books?id=XiYdcgAACAAJ. N. Pavlis, S. Holmes, S. Kenyon, and J. Factor. The development and evaluation of the earth gravitational model 2008 (EGM2008). Journal of Geophysical Research: Solid Earth (1978-2012), 117(B4), 2012. K. Prijatna and P. Soemidjan. Penentuan beda tinggi orthometrik dengan gps dan permasalahannya, 1997.
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