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New Perspective In Regional And Residual Separation Of Gravity And Magnetic Data Processing

Author

Listed:
  • Wiji Raharjo

    (Teknik Geofisika, Universitas Pembangunan Nasional Veteran Yogyakarta, Indonesia)

  • Indriati Retno Palupi

    (Teknik Geofisika, Universitas Pembangunan Nasional Veteran Yogyakarta, Indonesia)

  • Oktavia Dewi Alfiani

    (Teknik Geomatika, Universitas Pembangunan Nasional Veteran Yogyakarta, Indonesia)

Abstract

Separation between Regional and Residual anomaly in Gravity and Magnetic data processing is very important to get the best result in geological interpretation. Several methods were used to solve this problem like upward continuation and polynomial fitting. With the same principle, 2D FFT is applied by make an interactive tool based on Matlab Language Programming, named “Oasis Ala-Ala”. It adopts the algorithm from software Oasis. It started with make visualization map or the original data, then the map divide into some grids. Each of grid contain gravity or magnetic data. Then it transformed from special to wavenumber domain. After that, it convolves with our own filter matrix. And the last step is inverse it to get the regional and residual anomaly map. However, Matlab is powerful in facilitate this process in the GUI Toolbox. One important thing is the size of gravity and magnetic data. It will improve to Filter matrix size before do inverse process.

Suggested Citation

  • Wiji Raharjo & Indriati Retno Palupi & Oktavia Dewi Alfiani, 2022. "New Perspective In Regional And Residual Separation Of Gravity And Magnetic Data Processing," Geological Behavior (GBR), Zibeline International Publishing, vol. 6(1), pages 08-11, January.
    • Handle: RePEc:zib:zbngbr:v:6:y:2022:i:1:p:08-11
    DOI: 10.26480/gbr.01.2022.08.11
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