Sciences of Geodesy - I

doi:10.1007/978-3-642-11741-1

Cited by 16 publications

(6 citation statements)

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“…These effects must be corrected before the gravimeter data are processed. According to Timmen (2010), these geophysical effects can be categorized according to their possible sources, namely (1) Man-made effects: mineral explorations, ground water extraction, (2) Tectonic effects: earthquake, volcano eruption, post-glacial rebound and (3) Non-tectonic effects: Earth and ocean tides and load, redistribution of the atmosphere mass and its loading effects, polar motion and hydrologycal cycle. Due to their complexity and lack of knowledge, the first and second sources are dificult to model.…”

Section: Methods An Equation For the Single Measurementmentioning

confidence: 99%

“…Fortunately, in geodetic literature, methods for adjusting the gravity measurements and detecting possible outliers have been excessively studied, for example, by Lagios (1984), Zhiheng et al (1988), Torge (1989), Hwang et al (2002) and the most recently by Timmen (2010). These literatures are the best sources that can guide us to practical adjustment of the relative gravimeter data and also to develop a dedicated software that really fits our purposes.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

pyGABEUR-ITB: A FREE SOFTWARE FOR ADJUSTMENT OF RELATIVE GRAVIMETER DATA

Wijaya¹,

Muhamad²,

Prijatna³

et al. 2019

JIG

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pyGABEUR-ITB (Python GayaBEUrat Relatif – Institut Teknologi Bandung) is a free and interactive software for adjustment of relative gravimeter data, developed based on Python programming language. pyGABEUR-ITB can adjust relative gravity measurements and provide reliable estimates for correcting instrument’s systematic errors, such as gravimeter drift. Furthermore, pyGABEUR-ITB can also detect possible outliers in the observations using the t-criterion method. Since pyGABEUR-ITB is using the weighted constraint adjustment, at least one fixed station is required accordingly. Relative gravimeter data around Palu-Donggala area (Central Sulawesi) observed by Center for Geodesy Control Networks and Geodynamics, Geospatial Information Agency, were used to test the performance of pyGABEUR-ITB. The processing results were then compared against those calculated using GRAVNET software. The comparisons show that both pyGABEUR-ITB and GRAVNET softwares statistically provide simillar results, with the total RMS value of about 5 mGal. In term of computer’s requirement, pyGABEUR-ITB can be excecuted under a computer with the following minimal requirements: x64 CPU, 1 GB memory and WINDOWS 7 OS. Finally, it is important to mention that pyGABEUR-ITB is recently suited to process the data from the gravimeter that adopts the principle of vertical spring balance. In the near future, pyGABEUR-ITB will be extended to be able to automatically adapt to various observation principles.

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Section: Methods An Equation For the Single Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

pyGABEUR-ITB: A FREE SOFTWARE FOR ADJUSTMENT OF RELATIVE GRAVIMETER DATA

Wijaya¹,

Muhamad²,

Prijatna³

et al. 2019

JIG

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show abstract

“…The two primary types of relative-gravity meters are LaCoste & Romberg and ZLS Burris meters (LaCoste, 1988;Ander and others, 1999), based on a metal spring, and Scintrex meters, based on a fused-quartz spring (Timmen, 2010;Niebauer, 2015). Field procedures for both are similar.…”

Section: Relative-gravity Data Collectionmentioning

confidence: 99%

Procedures for field data collection, processing, quality assurance and quality control, and archiving of relative- and absolute-gravity surveys

Kennedy¹,

Pool²,

Carruth³

2021

Techniques and Methods

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“…Various disciplines of geosciences depend on the gravitational and geodynamic impact of rotation. Earth rotation is one of the impulses of the dynamics of the Earth system and the interactions between individual components, such as the exchange of angular momentum between atmosphere, ocean and solid Earth, or the coupling mechanism between the Earth's core and mantle [Plag et al 2009;F. Seitz et al 2010].…”

Section: Overviewmentioning

confidence: 99%