Vipul Silwal

Assistant Professor
Department of Earth Sciences
Indian Institute of Technology Roorkee (IITR)

Education
Ph.D. in Geophysics,
University of Alaska Fairbanks , 2012 - 2018
Integrated Masters (B.Sc. + M.Sc.) in Exploration Geophysics, Indian Institute of Technology, Kharagpur, 2007 - 2012


Links
Research
CV (pdf)
Publication list (pdf)   
github page
                                          

Research Statement
I am interested in theoretical and computational aspects of seismology. Seismology is a data-rich science with tremendous opportunities for understanding source processes and Earth structure. To pursue this I perform forward modeling of wave propagation through a media representative of Earth structure. The misfit between the synthetic thus generated and the observed data is then minimized using different approaches. The inversion technique and the applied minimization depends on many factors, such as theory underneath, linear or non-linear problem, dimensionality of the problem, and computational resources available. The uncertainty in the solution is also an integral part. For source inversion I have tried to quantify the uncertainty using Bayesian approach. These earthquake sources are the priori for the tomographic inversion. With the recent advances in high performance computing people have been able to carry out adjoint tomography at both regional and global scale. Similar effort is undergoing by us to better understand Alaska structure.

Contact info
Email:        vipulsilwal[at]gmail.com
Address:    Room No. 115
                  Department of Earth Sciences
                  Indian Institute of Technology Roorkee
                  Roorkee Uttarakhand 247667
Phone:       +91 (01332) 284911



 
Publications


(in prep)
(published)
Reports/Catalogs
Vipul Silwal, 2018, Seismic moment tensors for six events in Minto Flats fault zone, 2012-2016
Lomax, A., V. Silwal and C. Tape, 2018, Hypocenter estimation for 14 earthquakes in south-central Alaska (1929-1975)
Vipul Silwal, 2018, Seismic moment tensor catalog for crustal events in southern Alaska
Tape, C., V. Silwal and S. Holtkamp, 2017, Step-response signals recorded during earthquakes in Alaska
Vipul Silwal, 2015, Seismic moment tensor catalog for southern Alaska
Vipul Silwal, 2015, Seismic moment tensor catalog for Minto Flats fault zone (2000-2014)

Selected abstracts
Silwal, V., C. Tape, and E. Casarotti, Wavefield Simulation of earthquakes in southern Alaska for tomographic inversion, AGU Fall Meeting 11-15 Dec. 2017, New Orleans

Mienert, J., S. Buenz, B. Ferre, G. Dutta, and V. Silwal, Long-Term Seismological Observations of Eruptions of the Håkon Mosby Mud Volcano at the Barents-Sea Continental Margin (ESONET- LOOME Demonstration Mission,  EGU General Assembly, Vol. 13, EGU2011-3892, 2011