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Ambient Noise Cross-Correlation and Surface Wave Dispersion of South India Region

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dc.contributor.advisor RAI, SHYAM S. en_US
dc.contributor.author INGALE, VAIBHAV VIJAY en_US
dc.date.accessioned 2019-09-27T05:19:04Z
dc.date.available 2019-09-27T05:19:04Z
dc.date.issued 2019-09 en_US
dc.identifier.uri http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/4092
dc.description.abstract The peninsular part of the Indian continent (South India) is an important region because of the presence of various geological units. This thesis work focuses on implementing seismic interferometric techniques to ambient seismic noise recorded using broadband seismometers along the East-West profile of South India. Similar to optical interferometry, seismic interferometry (SI) gives us the detailed interior structure of the Earth by analysing the interference pattern of seismic waves. These interference patterns are obtained using the cross-correlation of seismic traces with one another. The seismic interferometric study helps to obtain the tomographic image of the Earth. This will reconstruct the image of velocity variation in the region of interest. The SI is a vital method for understanding the seismically quiet areas. With the help of this method, one can extract Green’s function from ambient noise recorded on the Earth’s surface, then the group or phase velocity computation and at last, the tomographic imaging. The tomographic imaging involves producing the phase and group velocity maps. In our work, we obtained the velocity maps for a period range between 3 sec and 15 sec, the group velocity varied from 2.99 km/s to 3.15 km/s and phase velocity varied from 2.9 km/s to 3.15 km/s. But this period range and less variation in group/phase velocity were unable to produce high resolution tomographic image of the region of interest. en_US
dc.description.sponsorship DST Inspire Fellowship en_US
dc.language.iso en en_US
dc.subject Ambient Noise en_US
dc.subject Seismic Interferometry en_US
dc.subject Green’s Function en_US
dc.subject Group and Phase Velocity en_US
dc.subject Fast Marching Method en_US
dc.subject Tomography, Inversion en_US
dc.subject 2019 en_US
dc.title Ambient Noise Cross-Correlation and Surface Wave Dispersion of South India Region en_US
dc.type Thesis en_US
dc.type.degree BS-MS en_US
dc.contributor.department Dept. of Earth and Climate Science en_US
dc.contributor.registration 20141136 en_US


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  • MS THESES [1705]
    Thesis submitted to IISER Pune in partial fulfilment of the requirements for the BS-MS Dual Degree Programme/MSc. Programme/MS-Exit Programme

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