A METHOD FOR COMPUTING OFFSET OF ZERO POINTS OF HEIGHT DATUMS WITH RESPECT TO GEOID

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AZMOUDEH ARDALAN A.A.; SAFARI A.R.

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Paper Information

Journal: Journal of the Earth and Space Physics Year:2005 | Volume:31 | Issue:2 Page(s): 1-12

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Title

A METHOD FOR COMPUTING OFFSET OF ZERO POINTS OF HEIGHT DATUMS WITH RESPECT TO GEOID

Author(s)

AZMOUDEH ARDALAN A.A. | SAFARI A.R. | Issue Writer Certificate

Keywords

ZERO POINT OF HEIGHTQ4

ABEL-POISSON INTEGRALQ4

MEAN SEA LEVELQ3

ORTHOMETRIC HEIGHTQ4

BOUNDARY VALUE PROBLEMQ3

Abstract

In this paper a method for computing offset of zero points of height data with respect to geoid by solving a fixed-free two-boundary value problem (FFTBVP) is addressed. Application of the following observables in the FFTBVP by presenting their corresponding integral equations and the computational algorithm is fully covered. a) Gravitational: gravity potential, modulus of gravity vector, astronomical latitude and astronomical longitude. b) Satellite altimetry. The method presented is applied to compute the offset of zero point of Iranian height datum with respect to geoid. According to the results, height datum of Iran is 0.094 m below the geoid. In this method since the offset of zero points of height data are determined with respect to geoid, height datum unification can be achieved by repeating the same procedure at in different countries. The recommended BOUNDARY VALUE PROBLEM has the capability of incorporating any type of observations which contain information about the gravity field of the Earth in a simultaneous gravity field modeling, therefore the method by taking advantage of all existing gravity observables can provide the optimum solution for obtaining the offset of the zero points of the height data and/or height datum unification.

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APA: Copy

AZMOUDEH ARDALAN, A.A., & SAFARI, A.R.. (2005). A METHOD FOR COMPUTING OFFSET OF ZERO POINTS OF HEIGHT DATUMS WITH RESPECT TO GEOID. JOURNAL OF THE EARTH AND SPACE PHYSICS, 31(2), 1-12. SID. https://sid.ir/paper/80334/en

Vancouver: Copy

AZMOUDEH ARDALAN A.A., SAFARI A.R.. A METHOD FOR COMPUTING OFFSET OF ZERO POINTS OF HEIGHT DATUMS WITH RESPECT TO GEOID. JOURNAL OF THE EARTH AND SPACE PHYSICS[Internet]. 2005;31(2):1-12. Available from: https://sid.ir/paper/80334/en

IEEE: Copy

A.A. AZMOUDEH ARDALAN, and A.R. SAFARI, “A METHOD FOR COMPUTING OFFSET OF ZERO POINTS OF HEIGHT DATUMS WITH RESPECT TO GEOID,” JOURNAL OF THE EARTH AND SPACE PHYSICS, vol. 31, no. 2, pp. 1–12, 2005, [Online]. Available: https://sid.ir/paper/80334/en

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