GIS/Remote Sensing/Geospatial Data Science/Python & R/Web Mapping/ GIS/Remote Sensing/Geospatial Data Science/Python & R/Web Mapping/

Turning spatial data into decisions you can map.

GIS and geospatial data professional building reproducible, end-to-end spatial workflows — satellite remote sensing in Google Earth Engine, spatial SQL in PostGIS, analysis in Python and R, and interactive web maps. Applied across environment, water resources, and planning.

29.8833° N, 97.9414° W — San Marcos, Texas

View projects ↓ LinkedIn GitHub

M.S. Geography · GPA 3.84

About

Where field surveying, remote sensing, and statistics meet a command line.

I work at the intersection of GIS, remote sensing, and spatial data science, building complete pipelines from raw satellite imagery and field surveys through spatial databases to analysis and web delivery. My background spans Google Earth Engine, PostGIS, Python, and R, applied to hydroclimatic analysis, suitability and flood-risk modeling, and remote sensing.

What sets my work apart is reproducibility: I favor documented code, real data, and results one can verify over a map that only looks good. I'm looking for GIS Analyst, GIS Developer, and geospatial data science roles in environment, water resources, energy, and planning.

3.84Graduate GPA · M.S. Geography, Texas State

4+ yrsGIS, surveying & research experience

5Fellowships & scholarships awarded

Skills

Grouped by what they do. Emphasized items are the ones I lead with.

Programming & Data

PythonPostgreSQL / PostGISR (Tidyverse, sf)Spatial SQLPandas / NumPyRasterioArcPyStatistical AnalysisGit / GitHub

Remote Sensing

Google Earth EngineLandsat / SentinelNDVI / LSTLand Cover ClassificationHyperspectralERDAS IMAGINE

Spatial Analysis & GIS

ArcGIS ProSpatial StatisticsSuitability / MCDAQGISModelBuilderArcGIS OnlineField Maps / Survey123

Web Mapping

LeafletJavaScriptChart.jsGeoJSONHTML / CSS

Surveying & Field

GNSS / DGPSUAV / Drone MappingPix4DAutoCAD

Projects

Reproducible work with code, real data, and results — open the repos and check.

Live · ML + Spatial Validation

Where Solar Gets Built (and Why It Isn't About Sun)

A Random Forest model of utility-scale solar siting across Texas shows grid access outweighs sunshine by ~9×. Transferred to North Carolina, which built 4× more solar on worse sun, it localizes where siting is policy-driven, not physics-driven. Spatial-CV ROC 0.92.

Python · scikit-learn · Earth Engine · SHAP · GeoPandas

Live · RS + PostGIS + Web

Austin Urban Heat Island Story Map

An interactive scrollytelling map of summer land surface temperature across all 65 Austin neighborhoods, measured in Google Earth Engine and joined to census income via a PostGIS spatial join. Canopy–heat r = −0.87.

Earth Engine · PostGIS · R · Leaflet · Chart.js

Live · GIS + LiDAR

Rooftop Solar Across Data Environments

The same rooftop-solar method on 1 m airborne LiDAR (Austin) and a 30 m open DSM (Kathmandu), quantifying how elevation-data resolution systematically biases solar estimates.

USGS 3DEP · ArcGIS Pro · Python · Copernicus GLO-30 · OSM

Live · Predictive Modeling

Watershed Land Cover Simulation (Markov-CA)

A Markov chain–Cellular Automata model that learns 2010–2020 land-cover transitions and forecasts where San Antonio will grow by 2030 (Figure of Merit 0.85).

ArcGIS Pro · Markov-CA · Python · NLCD

Live · Analyst + Python

Transit Dependency Likelihood Index

A custom ArcPy tool combining demographic need with transit service areas to find high-need neighborhoods underserved by bus stops in Portland, OR.

ArcPy · Network Analyst · z-scores · VIF

Live · RS + Statistics

NDVI, Land Surface Temperature & Land Cover

How vegetation cools the land surface across five land-cover types in Texas Hill Country, with a full reproducible R workflow (Kruskal–Wallis, ANCOVA).

ArcGIS Pro · Landsat · R · ANCOVA

Live · Remote Sensing

Post-Fire Vegetation Damage Assessment

Pre/post-fire change detection of the 2025 Pacific Palisades Fire using Wyvern hyperspectral imagery and red-edge vegetation indices.

ERDAS · Hyperspectral · ChangeCIred-edge

Experience

From municipal GIS in Nepal to hydroclimatic research in Texas.

Jan 2025 — Present

Graduate Research Assistant

Texas State University · San Marcos, TX

Hydroclimatic data analysis in Python and R; long-term climate and water-resources research; building reproducible data-processing workflows.

Nov 2023 — Jun 2024

Geomatics Engineer

Pokhara Metropolitan City · Gandaki, Nepal

GNSS and UAV surveys for river, terrain, and surface-water analysis; multi-temporal remote sensing of Fewa Lake water-extent change for flood-risk management.

Jun 2021 — Oct 2023

GIS Analyst

Earth Eco Consultancy · Gandaki, Nepal

Multi-criteria land-use suitability analysis; wildfire-risk model for Banke National Park; cadastral/DGPS land pooling; municipal thematic mapping for planning and reporting.

Awards & education

M.S. Geography, Texas State · B.S. Geomatics Engineering, Tribhuvan University.

The Graduate College ScholarshipTexas State University · 2026

Joe & Jerry Moore ScholarshipTexas State University · 2025

TSUS Graduate Endowed Fellowship2024 & 2025

TXST Graduate Merit FellowshipTexas State University · 2024

Open to new roles

Let's map something together.

Open to GIS Analyst, GIS Developer, and geospatial data science roles in environment, water resources, energy, and planning. Email is the fastest way to reach me.

Emailnirajantripathi5523@gmail.com Phone737-387-9007 RésuméDownload PDF