AJ Purdy

AJ Purdy

Assistant Professor

Harney Science Center 440C


Dr. Purdy’s research leverages satellite observations, models, and geospatial analysis to study hydrology, water resources, ecosystems, and the environment from farm fields and watersheds to global scales. Before arriving at USF, Dr. Purdy was a postdoctoral scholar at NASA's Jet Propulsion Laboratory. His roles included supporting the validation state-of-the art satellite observations with on-ground observations, developing open-source software to ease the use of NASA data to support water management, and collaborating with industrial designers to improve drought and hydrologic data communication. At the University of San Francisco, he continues to apply satellites and on-ground measurements to study water cycling as it relates to human activity.

Research Areas

  • Water Resources
  • Hydrology
  • Remote Sensing


  • UC Irvine, PhD in Earth System Science 2018
  • CSU Monterey Bay, MS in Watershed Science and Policy 2012
  • University of San Diego, BS/BA in Industrial and Systems Engineering 2008

Prior Experience

  • Postdoctoral Fellow, CalTech / Jet Propulsion Laboratory

Awards & Distinctions

  • NASA Earth and Space Science Fellowship

  • Tao Beta Pi

Selected Publications