GeoKrohn

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Justin Krohn

PhD Candidate • Geoinformatics • University of Missouri

Email: justin@geokrohn.com

CV (DOCX)

I am a PhD candidate in the Institute for Data Science and Informatics at the University of Missouri.
My research focuses on invasive species mapping, geospatial machine learning,
and high-resolution satellite imagery to understand how ecological and socio-environmental
variables shape species distributions across urban landscapes.

Research Interests

  • Geospatial machine learning & predictive modeling
  • Invasive species detection in high-resolution imagery
  • Landscape ecology & environmental modeling
  • Remote sensing of vegetation & land cover change
  • Public health & spatial epidemiology
  • Data pipelines, reproducible workflows, and spatial databases

Current Research

My dissertation focuses on the detection and modeling of Callery pear (Pyrus calleryana)
using high-resolution satellite imagery, machine learning, and socio-environmental predictors.
This work improves monitoring of invasive species across urban and peri-urban landscapes.

Methods I work with

  • Convolutional neural networks & tree-based ML models
  • Spectral feature engineering for vegetation detection
  • Spatial statistics & spatial cross-validation
  • Raster pipelines in Python, R, and GDAL

Publications

  1. Krohn, J., He, H., Matisziw, T. C., Pile Knapp, L. S., Fraser, J. S., & Sunde, M. (2025).
    Detecting the Distribution of Callery Pear … Remote Sensing, 17(8), 1453.
  2. Chang, S., Huang, F., He, H. S., Liu, K., & Krohn, J. (2024).
    Impacts of snow cover seasonality … Science of the Total Environment.
  3. Chang, S., He, H. S., Huang, F., & Krohn, J. (2024).
    Spring temperature and snow cover … European Journal of Forest Research.
  4. Song, C., He, H. S., Liu, K., Du, H., & Krohn, J. (2023).
    Impacts of human activities … Frontiers of Environmental Science & Engineering.
  5. Krohn, J., Davis‑Manigaulte, J., Fulcher, C., & Tiffany, J. (2022).
    Visualizing Diversity … Journal of Human Sciences and Extension.

Professional & Research Experience

Senior Research Project Analyst

University of Missouri Extension — CARES • Aug 2019–Present

  • Develop geospatial pipelines for research and operational projects.
  • Automate workflows using Python, R, and SQL.
  • Led COVID‑19 spatial data integration statewide.
  • Support the University Broadband Initiative with spatial analytics.
  • Create interactive dashboards and story maps (ArcGIS Online).

Teaching Assistant (GIS)

University of Missouri • 2021–2026

  • Led GIS labs and student technical support.
  • Graded assignments, projects, and exams.

Other Experience

  • AmeriCorps/Pike County EDC — community GIS & workforce development
  • Save The Elephants (Kenya) — elephant-beehive deterrence research
  • Peace Corps Malawi — environmental education and beekeeping programs
  • WSU Honey Bee Lab — hive health and field research support
  • Natural resource work — pollinator programs & 40-acre habitat restoration

Education

  • PhD, Geoinformatics, University of Missouri (2020–2026)
  • M.A. Geography, Western Illinois University (2018–2019)
  • B.S. Natural Resource Sciences, Washington State University (2011–2013)

Technical Skills

  • Python, R, SQL Server, PostGIS
  • ArcGIS Pro, ArcGIS Online, Experience Builder
  • Machine learning (classification, regression, CNNs)
  • Remote sensing tools (IDRISI, ERDAS IMAGINE)
  • Docker, Kubernetes for data workflows
  • Trimble GPS & field data collection

Contact

Email:justin@geokrohn.com

CV:CV (DOCX)

Location: Columbia, Missouri