| Abstract Submission No. | ABS-2.4-0015 |
| Title of Abstract | Transforms Applications for Lithosphere Subsurface Imaging |
| Authors | Sunjay* |
| Organisation | Seismic Imaging Centre Geophysics BHU Varanasi India |
| Address | Seismic imaging centre, Geophysics,BHU,Varanasi,India, Varanasi, UP, India Pincode: 221005 E-mail: sunjaytellus@gmail.com |
| Country | India |
| Presentation | Poster |
| Abstract | Lithosphere subsurface imaging is challenging task before geoscientists for extractive industries hydrocarbon, minerals, coal, geothermal energy resources, natural geologic white hydrogen exploration and extraction. Transforms applications geophysical signals are essential for precisise subsurface imaging.Fourier , Wavelet, Stockwell, Hilbert, Hilbert Huang, Radon, ,ParabolicRadon, Hartley, Laplace, Z-transform, Walsh, Mellin, Hough, Weyl,Hit and Miss ,etc are employed for geophysical data analysis. Wavelet transform- Diplet, Ridgelet(Radon & Wavelet), slantlet, Curvelet,shearlet, phaselet, beamlet, contourlet, caplet, Seislet, dreamlet,etc, is used for nonstationary data analysis-seismic spectral decomposition thin bed imaging, deepwater channel detection hydrocarbon exploration, hard rock seismic imaging minerals exploration, image processing seismic interpretation, etc, spectral leakage smearing signal of wavelet transform is corrected by synchrosqueezed wavelet transform. Hilbert huang transform-nonlinear nonstationary signal EMD Empirical mode decomposition is done.The Weyl transform, a mapping between a signal and its autocorrelation coefficients, can capture multiscale symmetries in texture, making it useful for classifying sediment types from acoustic images.In the context of geophysics, the Laplace transform is used to analyze gravity anomalies by transforming the gravity field from the spatial domain to the frequency domain, which can simplify the interpretation and modeling of subsurface structures.The Hankel transform, a mathematical tool, can be used to analyze and interpret gravity anomalies by transforming gravity data from the spatial domain to the frequency domain, aiding in the identification and characterization of subsurface structures. The Mellin transform can be used for gravity interpretation, particularly for analyzing and understanding gravity anomalies, which are variations in the Earth's gravitational field revealing differences in rock density and crustal structures.Hilbert transform is useful for analytic signal analysis calculating instantaneous attributes of time series especially amplitude and frequency.Harltley transform isemployed for gravity and seismicdata analysis. |
| Keywords | Transform, wavelet transform , lithosphere subsurface imaging, seismic imaging |