Calculation of Building Correction for urban gravity surveys. A case study of Athens metropolis (Greece)

Дилалос, С.; Alexopoulos, J.; Tsatsaris, Andreas

doi:10.1016/j.jappgeo.2018.09.036

Cited by 12 publications

(10 citation statements)

References 28 publications

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“…Building effect refers to the gravitational effect caused by buildings and relevant constructions (bridges, stadiums, malls, etc.) close to the gravity stations [48], as it happens on the KFUPM campus with the existence of a large number of buildings. A method to compute and correct the Building effect on raw gravity data is to put the building heights into the calculations by applying the "Building Correction", achieved using LIDAR or any other similar dataset [48].…”

Section: Gravity Survey-data Acquisition and Quality Controlmentioning

confidence: 97%

“…close to the gravity stations [48], as it happens on the KFUPM campus with the existence of a large number of buildings. A method to compute and correct the Building effect on raw gravity data is to put the building heights into the calculations by applying the "Building Correction", achieved using LIDAR or any other similar dataset [48]. Unfortunately, such datasets were not available for the present survey.…”

Section: Gravity Survey-data Acquisition and Quality Controlmentioning

confidence: 97%

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Gravity Survey on the Oil-Bearing Dammam Dome (Eastern Saudi Arabia) and Its Implications

et al. 2022

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A detailed gravity survey with 235 measurements was carried out at the King Fahd University of Petroleum and Minerals campus, which is located at the crest of the oil-bearing Dammam Dome (Eastern Province of Saudi Arabia). This survey allows us to better understand the geometry of the underlying Dammam Dome and its tectonic regime. The acquired data were processed using conventional gravity data reduction techniques. The effectiveness of terrain correction was evaluated using several recently developed algorithms. Afterward, processed data were subject to geophysical filters for edge detection (terracing transformation and horizontal gradient) and depth estimation (tilt derivative and 3D inversion). 3D Bouguer maps were generated and compared to the proposed geological models for the Dammam Dome. The results show the existence of ENE-WSW striking tectonic lines, where two nearly vertical, km long tectonic lines were predominant. The orientation of these tectonic lines defines an NNW-SSE trend for the least principal stress axis (σ3) and an ENE-WSW trend for the σ1σ2 stress plane of the driving stress regime, fitting well with the transtension stress regime recently suggested for the area. More importantly, the results of this study demonstrate that the Dammam Dome was affected by the intraplate stresses transferred from the convergence between the Arabian and Eurasian plates along the Zagros orogeny.

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Section: Gravity Survey-data Acquisition and Quality Controlmentioning

confidence: 97%

Section: Gravity Survey-data Acquisition and Quality Controlmentioning

confidence: 97%

Gravity Survey on the Oil-Bearing Dammam Dome (Eastern Saudi Arabia) and Its Implications

et al. 2022

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“…The data processing and reduction of the gravity measurements have already been presented and analyzed by the authors in the past [21,25,27] and for that reason we will present them briefly. The assumed constant density for the Bouguer correction was set up to 2.67 g/cm 3 , generally used by several other researchers in the broader area [13,54,65].…”

Section: Data Processing and Reductionmentioning

confidence: 99%

“…In order to calculate the necessary terrain correction up to a radius distance of 21 km, we took advantage of the Gravity and Terrain Correction extension of Oasis Montaj software. Due to the urban characteristics of the survey, we have calculated and added the Building Corrections [21,27] caused by the gravitational attraction of the buildings and infrastructures of the city. The final construction of the Complete Bouguer Anomaly map has been presented and discussed thoroughly by [25].…”

Section: Data Processing and Reductionmentioning

confidence: 99%

The contribution of an urban gravity survey to the determinable perspective of Athens city (Greece) underground structure

Дилалос

Alexopoulos

2020

SN Appl. Sci.

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An urban gravity survey with more than 1120 measurements was carried out in order to adumbrate the deeper subsurface of Athens city basin. The aim was to gather quantitative information of the subsurface structure derived from the acquisition of gravity measurements. At first, a gravity base network has been established for the data collection. The standard data reduction has been carried out along with an additional Building Correction that has been calculated due to the urban characteristics. Subsequently, the residual anomaly was isolated with the contribution of the Fourier filters. The Euler deconvolution has been applied, with two different techniques, providing depth solutions for the residual maps. Based on these maps, we managed to retrieve quantitative information for the depths of anomalous sources, ranging between 500 and 3760 m. Moreover, unconstrained three-dimensional density models of the area have been constructed in order to obtain a good image of the subsurface, up to depths of 4500 m. For each three-dimensional density model, we provide a couple of images; one illustrating only the structures of lower densities and one other only with the structures of higher densities, in an effort to delineate better the tectonic structures. Finally, two geophysicalgeological profiles (2.75D) have been constructed, along which the geotectonic regime of the subsurface seems to be adumbrated in a better way. Major known tectonic structures of Athens basin have been identified beneath the surface.

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“…However, it reduces the scope of the method applications. The second option is to calculate a correction to eliminate the gravity effect of buildings (Śliz 1978;Panisoval et al 2012;Dewu 2014;Dilalos et al 2018). Building correction can also eliminate the impact of identified underground natural or anthropogenic objects (Golebiowski et al 2016;Porzucek 2014).…”

Section: Introductionmentioning

confidence: 99%

Detailed analysis of the gravitational effects caused by the buildings in microgravity survey

Łój

Porzucek

2019

Acta Geophys.

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Gravity (microgravity) research is more frequently carried out in urban areas, in close proximity to various types of buildings. It is necessary to take into account the gravity impact of these buildings on the measurements by calculating and factoring in the appropriate correction. The easiest method to calculate the corrections is to base them on simplified models of the buildings, approximated mostly by a rectangular prism. This paper presents an analysis of correction based on simplified models of six different buildings. It has been clearly demonstrated that density of a simplified model of a building or an element of the building is different from the average density, especially for gravity measurements inside the buildings. The research demonstrates that it is better to approximate the building with two or three rectangular prisms than with only one treated as a whole. However, the difficulty lies in determining the density of the lowest storey, the value of which diverges from the average density the most. Nevertheless, it can be concluded that in calculating building corrections simplified models of the buildings can be used, even for observation stations that are located in a close proximity to the buildings, as long as the conditions described in this article are met.

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Calculation of Building Correction for urban gravity surveys. A case study of Athens metropolis (Greece)

Cited by 12 publications

References 28 publications

Gravity Survey on the Oil-Bearing Dammam Dome (Eastern Saudi Arabia) and Its Implications

Gravity Survey on the Oil-Bearing Dammam Dome (Eastern Saudi Arabia) and Its Implications

The contribution of an urban gravity survey to the determinable perspective of Athens city (Greece) underground structure

Detailed analysis of the gravitational effects caused by the buildings in microgravity survey

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