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All Journal BERKALA FISIKA Journal of Physics and Its Applications
Irham Nurwidyanto
Physic Department, Faculty Of Science And Mathematics, Diponegoro University, Semarang
Astronomy Earth & Planetary Sciences Materials Science & Nanotechnology Physics

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Journal : Journal of Physics and Its Applications

 1 
Data validation of gravity field and satellite data using correlation and coherence method rina dwi indriana; M. Irham Nurwidyanto; Laode M. Sabri
Journal of Physics and Its Applications Vol 3, No 1 (2020): November 2020
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v3i1.9291

Abstract

Satellite data is frequently used as an initial study of a research area for its easy to access feature as well as its improving quality. One of the available satellite data is geopotential data. Satellite data is commonly used to be correlated to the topography data. In this research, satellite data is used as the database of validation in a research area. Valid measuring data is highly required, so that the qualified data is obtained for further process. To identify the validity, additional other QC is required than the existing QC which in 1D. The validation method which applied are correlation and coherence method. The distribution of correlation and coherence values show  asimilirity or compatibility of field data with satellite data. The correlation method was calculate in 2D and the coherence in 1D. Correlation calculation of field data produces high correlation and coherence value to satellite data as much as 0.7 to 0.95 so that it could be identified that acquisition and data processing have been carried out correctly.
Comparative Results of Regional and Residual Anomalies with the Upward Continuation, Moving Average, and Polynomial Methods for Magnetic Data Luvera Deva Intan Indrawati; rina dwi indriana; Irham Nurwidyanto
Journal of Physics and Its Applications Vol 2, No 2 (2020): May 2020
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v2i2.7673

Abstract

Geophysics programing of regional and residual anomaly separation on Magnetic data has been carried out with the results compared with the upward continuation method in the OasisMontaj software. Separation of anomalies with moving average and polynomial methods is processed using Matlab programming. The orders used in the polynomial method are first-order, second-order and third-order. Comparison is done by calculating the match value. The chosen matching method is autocorrelation. Correlation of residual magnetic anomalies resulting from upward continuation (Magpick) to moving averages, 1st-order polynomials, 2nd-order polynomials and 3rd-order polynomials. Correlation values obtained for the moving average method are 0.9604, first order polynomial 0.9072, 2nd order polynomial 0.9482 and third order polynomial 0.6057. The moving average and second order polynomial methods can be used as a substitute method if we do not use the upward continuation method.
Co-Authors Ari Setiawan Fenti Listiyani Gatot Yulianto Johan Maulana Hadi Kirbani Sri Brotopuspito Kurnia W. Haryono Laode M. Sabri Lestari, Puspa Luvera Deva Intan Indrawati Meida Yustiana Muhamad Adib Hasan Putut Indratmoko Refyana T. Achmad Rina Dwi Indriana rina dwi indriana rina dwi indriana Riza Eka Prabowo Sismanto Sismanto Sri Wahyuningrum Sugeng Widada Sugeng Widodo Susantoro, Tri M TATI NURHAYATI Udi Harmoko Yoga Yuniadi Zukhrufuddin Thaha Darwis