TY - JOUR ID - 2080 TI - Stable Downward Continuation of Airborne Potential Field Geophysical Data: an Investigation of Stabilizer Family JO - Journal of Mining and Environment JA - JME LA - en SN - 2251-8592 AU - Azadi, M. AU - Abedi, M. AU - Norouzi Baghkameh, Gh. H. AD - School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran Y1 - 2021 PY - 2021 VL - 12 IS - 2 SP - 547 EP - 567 KW - Signal attenuation KW - Stable downward continuation KW - Tikhonov regularization KW - Stabilizing functions DO - 10.22044/jme.2021.10740.2040 N2 - < p>Attenuation of the signal received from sources causing anomalies and reduction of data resolution are the negative features of airborne measurements. Using a stable downward continuation method is a practical way to address these shortcomings. In this study, we investigated the efficiency of various stabilizers in achieving stable downward continued data. The purpose of this study is to select the most appropriate stabilizer(s) for this operation. We examined the various stabilizing functions by introducing them into the Tikhonov regularization problem. The results of research on synthetic airborne gravity and magnetic data showed that βL1 (the other definition of L1 norm) and SM (the smoothest model) stabilizers have the potential to be used in the stable implementation of the downward continuation method. These stabilizers performed better than the other in the three comparisons, including visual, quantitative (RMS error), and graphical comparisons. Also, by examining the airborne magnetic data related to the Esfordi district in Yazd province (Iran), it was found that in general the βL1 stabilizer is more suitable than the other stabilizing functions studied in this research. UR - https://jme.shahroodut.ac.ir/article_2080.html L1 - https://jme.shahroodut.ac.ir/article_2080_80984974d475b1aeeca1d59bbc7248cb.pdf ER -