2016
DOI: 10.1016/j.jappgeo.2016.09.023
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An enhanced trend surface analysis equation for regional–residual separation of gravity data

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Cited by 18 publications
(10 citation statements)
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“…RegionalðxjÞ is the regional background field (Pawlowski, 1994;Obasi et al, 2016;Essa and Munschy, 2019).…”
Section: The Methodsmentioning
confidence: 99%
“…RegionalðxjÞ is the regional background field (Pawlowski, 1994;Obasi et al, 2016;Essa and Munschy, 2019).…”
Section: The Methodsmentioning
confidence: 99%
“…Terhadap beberapa kasus, pemilihan anomali regional dapat bergantung pada anomali residual sebab anomali ini merupakan anomali yang menjadi target interpretasi (Beltrao, Silva and Costa, 1991). Pada praktiknya terdapat banyak metode untuk melakukan pemisahan anomali regional dan anomali residual, beberapa diantaranya trend surface analysis (Obasi, Onwuemesi and Romanus, 2016), Polynomial fitting (Beltrao, Silva and Costa, 1991), Non Linier Fitting (Keating and Pinet, 2011), dan wiener filtering (Pawlowski and Hansen, 2002). Secara umum metode pemisahan anomali regional dan anomali residual dapat dikelompokan menjadi beberapa kelompok, diantaranya berdasarkan grafis, spektral dan polinomial (Nettleton, 2014).…”
Section: Pendahuluanunclassified
“…Proses perhitungan metode polinomial tergolong mudah karena dapat dilakukan tanpa harus menyusun kode pemrograman. Perhitungan cukup dilakukan dengan penyusunan matriks yang dapat dilakukan tanpa menggunakan perangkat komputer sekalipun (Obasi, Onwuemesi and Romanus, 2016).…”
Section: Pendahuluanunclassified
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“…Gravity is one of the geophysical methods that can be used to determine the geological subsurface condition based on the physical parameters of density. There are several filter methods that can be used to analyze gravity data including a Gaussian filter to separate regional and residual anomalies from gravity data (Karunianto et al, 2017), (Obasi et al, 2016) use the trend surface analysis method to separate residual and regional anomalies from gravity data. Zahra and Oweis, (2016) use high pass filter on gravity and geomagnetic data to obtain short wavelength anomalies associated with shallow anomaly sources.…”
Section: Introductionmentioning
confidence: 99%