Geographer
& Developer

PhD Student in Geographic Information Science

I research and develop innovative web applications that bridge geography, technology, and education. My work focuses on geovisualization, migration, and interactive mapping for teaching and research.

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01. About

Who I Am

A geographer working at the intersection of cartography, technology, and education.

I am a PhD student in Geography at the University of Iowa, specializing in Cartography and Geographic Information Science. I develop web-based applications and visual tools that help people understand complex spatial patterns, demographic change, and historical narratives.

PhD

Student in Geography

3.9+

University of Iowa GPA

Years of Research Experience

Published

Researcher & Cartographer

02. Skills

What I Do

Combining technical expertise with cartographic thinking and creative design.

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GIS & Cartography

Spatial analysis, web mapping, ArcGIS Pro, QGIS, and cartographic design.

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Data Visualization

Translating complex spatial and demographic data into clear visual narratives.

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Software Development

Building research and educational applications with JavaScript, Python, and databases.

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Research & Analysis

Migration, health geography, demographic change, and geographic education.

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DevOps

Containerization, CI/CD pipelines, cloud deployment, and research infrastructure.

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Server Management

Linux and Windows server administration, deployment support, and troubleshooting.

03. Projects

Selected Work

Roots & Migrants

A story map application for teaching and learning U.S. historical population dynamics.

WebGISJavaScriptMapLibreD3.js

Graduated Symbol Mapping

A graduated-symbol map visualizing county population in Nebraska.

ObservableD3.js

Population Change

A choropleth map of population change across Nebraska from 2010 to 2024.

ObservableCartography

Bivariate Mapping

A map showing population density and owner occupancy in Nebraska.

ObservableStatistical Analysis

Isarithmic Mapping

An isarithmic map showing annual precipitation across Iowa.

ObservableClimate Data

Flow Mapping

A flow map of five-year internal migration patterns in Nigeria.

FlowMapperMigration Data

Geovisual Analytics

A dynamically linked map exploring lifestyle factors and health status in California.

InteractiveGeovisualization

Migration Inflow

A map showing total inflows of migrant families in the United States from 1650 to 1969.

ObservableMigration

Migration Outflow

A graduated-symbol map showing migrant-family outflows in the United States from 1650 to 1969.

ObservableMigration

04. Publications

Publications

Roots & Migrants: A User-Centered Story Map Application for Teaching and Learning Historical Population Dynamics in the United States

Nwajiaku, C. L., Koylu, C., & Cai, J. (2026). Cartography and Geographic Information Science. ↗

Building Bridges for Ocean Sustainability: The Evolution and Impact of the Early Career Ocean Professional (ECOP) Programme

Roman, R., Kostianaia, E., Bowes, A., et al., Nwajiaku, L. (2024). Marine Technology Society Journal, 58(1–2), 8–14. ↗

Unequal Aging in Nigeria: Evidence on Pre-COVID-19

Makanju, A., Ndukauba, P., Nwajiaku, L., Olajide, I., Ogungbemi, O., & Adesina, J. (2022). Aging Communications, 4(3), 15. ↗

A Cross-Sectional Study on the Socio-Economic Determinants of Later-Life Frailty in Southwestern Nigeria

Makanju, A., Uriri, A., Nwajiaku, L., & Ogungbemi, O. (2022). Aging Communications, 4(4), 20. ↗

05. Contact

Let's Work Together

Open to research collaborations, cartographic projects, and conversations about geographic visualization.

Get In Touch

I am always open to discussing research opportunities, interesting projects, and new ideas in cartography and GIScience.

LinkedInLoretta Nwajiaku GitHub@lorettaNwaj

Geographer& Developer