ON THE EFFECT OF DIGITAL TERRAIN MODEL ON THE GEOID COMPUTATION METHODOLOGY WITHOUT APPLYING STOCK'S FORMULA

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JOMEGI A.A.; SAFARI ATEFEH; AZMOUDEH ARDALAN A.R.

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Paper Information

Journal: Journal of the Earth and Space Physics Year:2007 | Volume:33 | Issue:1 Page(s): 85-105

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Title

ON THE EFFECT OF DIGITAL TERRAIN MODEL ON THE GEOID COMPUTATION METHODOLOGY WITHOUT APPLYING STOCK'S FORMULA

Author(s)

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

Keywords

GEOIDQ3

DIGITAL TERRAIN MODEL (DTM) CRUST DENSITYQ3

STOKESQ3

BRUNS TRANSFORMATIONQ3

BOUNDARY VALUE PROBLEMQ3

Abstract

One of the main steps in the solution of the gravimetric BOUNDARY VALUE PROBLEMs of GEOID computations is the removal of the terrain effect. This computation requires knowledge of the topography of the Earth in terms of Digital Terrain Models (DTM). During recent years, thanks to satellite radar missions, several DTM’s with different resolutions are computed and presented to the geosciences community. In this paper two main DTM’s namely, GTOPO30 with 30 second resolution, the U.S. Geological Survey's EROS Data Center, and SRTM computed by computed by U.S. NASA within Shuttle Radar Topography Mission, are considered and are applied for local GEOID computation without applying STOKES formula at a test region at the Coastal Pars of Iran. As the benchmark the GEOIDal heights at 50 GPS/Leveling stations within the test region are considered. Results of the computations indicate that SRTM could results in, on average, 30.05 cm better result at the GPS/Leveling point than GTOPO30 at the test region.

Cites

تعیین ژئوئید در جزایر با استفاده از حل مساله مقدار مرزی گرانی سنجی - ارتفاع سنجی ماهواره ای با مرزهای ثابت بررسی خاص: تعیین ژئوئید در جزیره قشم

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APA: Copy

JOMEGI, A.A., SAFARI, ATEFEH, & AZMOUDEH ARDALAN, A.R.. (2007). ON THE EFFECT OF DIGITAL TERRAIN MODEL ON THE GEOID COMPUTATION METHODOLOGY WITHOUT APPLYING STOCK'S FORMULA. JOURNAL OF THE EARTH AND SPACE PHYSICS, 33(1), 85-105. SID. https://sid.ir/paper/80479/en

Vancouver: Copy

JOMEGI A.A., SAFARI ATEFEH, AZMOUDEH ARDALAN A.R.. ON THE EFFECT OF DIGITAL TERRAIN MODEL ON THE GEOID COMPUTATION METHODOLOGY WITHOUT APPLYING STOCK'S FORMULA. JOURNAL OF THE EARTH AND SPACE PHYSICS[Internet]. 2007;33(1):85-105. Available from: https://sid.ir/paper/80479/en

IEEE: Copy

A.A. JOMEGI, ATEFEH SAFARI, and A.R. AZMOUDEH ARDALAN, “ON THE EFFECT OF DIGITAL TERRAIN MODEL ON THE GEOID COMPUTATION METHODOLOGY WITHOUT APPLYING STOCK'S FORMULA,” JOURNAL OF THE EARTH AND SPACE PHYSICS, vol. 33, no. 1, pp. 85–105, 2007, [Online]. Available: https://sid.ir/paper/80479/en

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