EDUCATION

Doctor of Philosophy

Major: Atmospheric Physics and Chemistry
Institute: Indian Institute of Technology (IIT) Kharagpur, Kharagpur, India
Thesis: Investigation of Atmospheric Ozone Evolution in Antarctica using Measurements and Statistical Learning
Graduation Year: 2022

Master of Technology

Major: Earth System Science & Technology
Institute: Indian Institute of Technology (IIT) Kharagpur, Kharagpur, India
Thesis: Accuracy of satellite total column ozone measurements in polar vortex conditions
Graduation Year: 2017

Bachelor of Engineering

Major: Mechanical Engineering
Institute: Birla Institute of Technology (BIT), Mesra, India
Thesis: Optimization of Wind Turbine Blades using CFD
Graduation Year: 2012


SKILLS

Data Analysis

  • Bayesian Analysis and Parameter Estimation (MLE, MAP, MCMC)
  • Time-series Modeling and Analysis (state space models, MLR, DLM)
  • Machine Learning (MLP, CNN, RNN, AutoEncoder, Transformer, GAN)
  • Trajectory Modeling and Analysis
  • Causal Machine Learning
  • Natural Language Processing

Programming Languages

  • Python
  • MATLAB
  • Fortran
  • JavaScript

Natural Languages

  • Hindi (Native)
  • English (Proficient)
  • German (A1 level)

Libraries / Frameworks

  • Statistical Learning: Pandas, Statsmodels, Scikit-learn, NLTK, Networkx, Tensorflow, Keras
  • Visualization: Matplotlib, Seaborn, Arviz, Basemap, Cartopy, Folium
  • RADAR Analysis: wradlib
  • Geospatial Data Analysis: gdal, rasterio, xarray, geopandas, Google Earth Engine
  • Parallel Programming: dask, joblib


Physical Modeling

  • Trajectory Modeling: HySPLIT
  • Atmospheric modeling: WRF, GEOS-Chem, ICON-ART
  • Radiative Transfer Modeling: RRTMG

Other Computer related skills

  • Version control with git
  • Shell scripting in Linux
  • Conversant with Markdown, HTML/CSS and LaTeX
  • Experience of working on supercomputer


RESEARCH EXPERIENCE


Research Associate, Aerosol and Reactive Tracer Modelling, KIT Germany, 2022 - Present

  • Developed MieAI, a neural network for emulating the calculation of optical properteis of mixed mode aerosols.

  • Coupled ICON-ART modeling system with Machine Learning model for faster and better parameterization of aerosol optics.

  • Developed mineral dust pre-processor for ICON modeling system.

  • Authoring user-friendly post-processing library for ICON-ART in python.



Research Scholar, ATMOS Lab, IIT Kharagpur, 2017 - 2022

  • Merged and bias-corrected long term data record of vertical profiles of rainfall, ozone and related trace gases using various correction techniques like quantile mapping and scaled distribution mapping.

  • Analysed Polar vortex based stratospheric ozone for detection of ozone hole saturation using ground-based and satellite based measurements in Antarctic region.

  • Developed Receptor models based on airmass trajectories generated with HySPLIT in python for air pollution source detection studies and clustered them using Hierarchical agglomerative clustering (HAC) and wavelet transform based K-Means clustering for transportation pathways analysis.

  • Investigated Land Use Land Cover (LULC) change over North-East India using Google Earth Engine and Random Forest based classification.

  • Performed Self-organising map (SOM) based clustering of tropospheric ozone profiles for Antarctic region and their long-term analysis using Multivariate Linear Regression (MLR) and Bayesian Dynamic Linear Model (DLM).

  • Conducted Causal Effect Network (CEN) analysis of tropospheric ozone in Antarctica for determination of geophysical drivers responsible for observed variability.

  • Developing a causal inference framework using attention based temporal convolution network (TCIF) for performing causal effect estimation.

  • Carried out radiative transfer modeling using RRTMG for radiative forcing estimation.

  • Simulated and analysed global atmospheric chemistry using GEOS-Chem at Pratyush, India's fastest supercomputer.



Research Assistant, ATMOS Lab, IIT Kharagpur, 2016 - 2017

  • Compared long term total column ozone datasets from various ground based instruments with satellite based observations in Antarctic region.

  • Estimated rainfall using preliminary data from Doppler Weather radar in Kolkata region using wradlib radar data analysis package in python.

  • Investigated freezing of water droplet and subsequent transformation of its shape numerically using MATLAB.



Undergraduate Project, BIT Mesra, 2011 - 2012

  • Carried out numerical investigation of natural convection in Bingham fluids within a square enclosure with differentially heated sidewalls using Fluent, a CFD package.

  • Performed optimization of Wind Turbine Blades using Fluent in Ansys.


AWARDS/GRANTS


  • Received full funding for attending European Geosciences Union (EGU) General Assembly held during 23–28 April 2017 in Vienna, Austria.