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A list of all the posts and pages found on the site. For you robots out there is an XML version available for digesting as well.
Pages
Welcome!
About me
Posts
Spectral Element Method (SPECFEM) for Forward and Inverse Modeling
Published:
SPECFEM: Spectral-Finite-Element Method
Compact Inversion of Gravity and Magnetic Data
Published:
Compact Inversion of Gravity and Magnetic Data Using Huber Loss Function
GammaSpec: Gamma-Ray Spectrometry for Isotope Identification
Published:
GammaSpec: Identifying and Labeling Isotopes in Gamma-Ray Spectrometry
Radiometric Simulator (RadSIMU)
Published:
RadSIMU: Simulating Airborne Gamma-Ray Spectrometry Surveys
portfolio
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Portfolio item number 2
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publications
A MATLAB Based Program for the Inversion of Time-Lapse ERT Data
Published in 13th Biennial International Conference & Exposition of the Society of Petroleum Geophysicists (SPG), Kochi, India, 2020
This paper presents a MATLAB-based 2D resistivity inversion algorithm utilizing the damped least squares method, validated against the RES2DINV software, and applied to time-lapse ERT data for groundwater recharge studies.
Recommended citation: Nainwal, N., Dekate, A., Mishra, U., Mandal, A., & Kumar, P. (2020). "A MATLAB Based Program for the Inversion of Time-Lapse ERT Data." Presented at the 13th Biennial International Conference & Exposition of the Society of Petroleum Geophysicists (SPG), Kochi, India. [Read the full paper](https://www.researchgate.net/publication/348548255_A_MATLAB_based_program_for_the_Inversion_of_Time_Lapse_ERT_Data#fullTextFileContent)
talks
RadSIMU: An Airborne Radiometric Simulator for Survey Design and Mineral Targeting
Published:
This presentation introduces RadSIMU, an airborne radiometric simulator designed for survey planning and mineral targeting. The talk highlights the development of RadSIMU as a tool to simulate and optimize gamma-ray spectrometry (AGRS) surveys using UAV platforms.
Improved Compact Inversion of Gravity and Magnetic Data using Huber Loss Function
Published:
This presentation explores the improved compact inversion of gravity and magnetic data using the Huber loss function to handle outliers and large residuals effectively. The approach combines robust statistical methods with geophysical inversion techniques to enhance subsurface imaging and interpretation.
Improved Spectral Analysis and Terrain Correction Methods in Airborne Gamma-Ray Spectrometry
Published:
This presentation focuses on improved spectral analysis and terrain correction methods for airborne gamma-ray spectrometry (AGRS). My research explores the use of UAV-borne magnetic and radiometric data for mineral exploration and subsurface characterization. The talk highlights advancements in terrain correction algorithms, leveraging synthetic simulations and real-world field data to improve data accuracy over rugged topographies.
teaching
Electrical Resistivity Tomography (ERT) modeling
Master thesis (M.Tech), Indian Institute of Technology Kanpur, India, 2018
Thesis title: Numerical Modeling of Electrical Resistivity Tomography (ERT) for groundwater contamination monitoring 
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Analysis of seismo-Ionospheric coupling using the DEMETER satellite
Project, Queen's University, Canada, 2021
Title: Analysis of seismo-Ionospheric coupling using the DEMETER satelliteg 
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Assessing the Kingston East Landfill Site using ERT, EM-31, and GPR methods
Project, Queen's University, Canada, 2021
Title: Assessing the Kingston East Landfill Site using ERT, EM-31, and GPR methods 
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3D Compact Inversion of Gravity data
Project, Queen's University, Canada, 2022
Title: 3D Compact Inversion of Gravity data 
Spectral-infinite-element simulation of Gravity and Magnetic data
Ph.D. Project, Queen's University, Canada, 2023
Title: Spectral-infinite-element simulation of Gravity and Magnetic data 
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