Dr. Pratul Ranjan

Scientist , Controlled Source Seismics and Gas Hydrates

Dr. Pratul Ranjan

pratulranjan@ngri.res.in

Academic Identity
        

Specialization

Seismic imaging, attenuation, tomography

Research Area

I am interested in subsurface imaging using both active and passive seismic data with the help of low-cost sensors. Geophysical imaging has evolved continually over past few decades in the form of algorithmic advancements and instrumental developments. Therefore, there is a need to update our existing tools for seismic imaging in order to obtain a more detailed subsurface structure. Geophysical imaging has applications in understanding geodynamical processes, mineral exploration, hydrocarbon exploration, environmental monitoring etc.  

Ongoing Research Projects

Title - Landslide monitoring using ambient seismic noise, funding agency- DST-INSPIRE, duration-2023-2028

Honors & Awards

  • Recognized as Assistant Professor under Academy of Scientific Innovation and Research (AcSIR) in 2024.
  • Awarded DST-INSPIRE faculty research grant by Department of Science and Technology, India in 2023. 
  • Awarded European Union fellowship to pursue postdoctoral research in France for 2022-2023. 
  • Awarded Taiwan International Graduate Program Fellowship to pursue PhD for three years. 
  • Received scholarship from Ministry of Science and Technology, Taiwan for continuing PhD. 
  • Awarded INSPIRE fellowship for the duration of Integrated Master degree. 
  • Earned International Union of Geodesy and Geophysics grant to attend quadrennial conference. 
  • Finalist at Ocean Academic Plugin Design competition for Petrel by Schlumberger in 2014. 

Publications

 

  • Ranjan, P., Konstantinou, K.I. High-resolution local earthquake tomography of the Aegean crust: Implications for active deformation, large earthquakes and arc volcanism. Tectonophysics https://doi.org/10.1016/j.tecto.2024.230331 

 

  • Laurent Stehly; Estelle Delouche; Lisa Tomasetto; Pratul Ranjan. Dynamic of seismic noise sources in the Mediterranean Sea: implication for monitoring using noise correlations. Comptes Rendus. Géoscience, Online first (2024), pp. 1-24. https://doi.org/10.5802/crgeos.241  

 

  • Andinisari, R., Konstantinou, K. I., & Ranjan, P. (2021). Moment tensor inversion of microearthquakes along the Santorini-Amorgos zone: Tensile faulting and emerging volcanism in an extensional setting. Journal of Volcanology and Geothermal Research, 107394. https://doi.org/10.1016/j.jvolgeores.2021.107394  

 

 

 

  • Ranjan, P., Konstantinou, K. I. (2020). Mapping intrinsic and scattering attenuation in the southern Aegean crust using S wave envelope inversion and sensitivity kernels derived from perturbation theory. Journal of Geophysical Research: Solid Earth, 125, e2020JB020821. https://doi.org/10.1029/2020JB020821   

 

 

  • Andinisari, R., Konstantinou, K.I. & Ranjan, P. (2020). Seismotectonics of SE Aegean inferred from precise relative locations of shallow crustal earthquakes. J Seismol 24, 1–22. https://doi.org/10.1007/s10950-019-09881-8   

 

  • Ranjan, P., Konstantinou, K. I., & Andinisari, R. (2019). Spatial distribution of random velocity Inhomogeneities in the southern Aegean from inversion of S wave peak delay times. Journal of Geophysical Research: Solid Earth, 124, 10,393– 10,412. https://doi.org/10.1029/2018JB017198  

Books

Research Scholars

Educational Qualification

Ph.D. Academia Sinica & National Central University, Taiwan

Proffessional Experience

June 2023- Present    Scientist  CSIR-National Geophysical Research Institute (NGRI)

Jan 2021 – May 2022   Postdoc  Institute of Earth Sciences (ISTerre), Grenoble Alps University, France   

 

 

Proffessional Affiliations

Life Memebership - Indian Geophysical Union (IGU)