1 (888) 9-HYDREX    info@hydrex-inc.com
Hydrex Hydrex Drone Division
1 (888) 9-HYDREX    info@hydrex-inc.com

John F. Chapman

GIS Coordinator / Programmer
Hydrex Environmental
Nacogdoches, Texas
Email: jchapman@hydrex-inc.com


B.S. Horticulture
Stephen F. Austin State University
Nacogdoches, Texas

M.S. Spatial Science
Stephen F. Austin State University
Nacogdoches, Texas


  • 2010 SFA William R. Johnson Outstanding Thesis Award

Professional Licenses

  • Federal Aviation Administration (FAA), Certified Small Unmanned Aircraft System (sUAS) Remote Pilot License

Summary of Geographic Information Systems (GIS) Work Experience

Mr. Chapman experience lies in researching and utilizing various Geographic Information System (GIS) technologies for environmental goals, Information Technology for server administration, database management, and online mapping application development, as well as teaching.

Detailed Description of Geographic Information Systems (GIS) Work Experience

John Chapman works with geologists, environmental scientists, land managers, and other field experts to leverage GIS capabilities to maximize productivity and efficiency within their organizations. He provides technical expertise in the field of mapping and mapping software, best practices for spatial data management, and experience in researching and utilizing emerging technologies to achieve desired outcomes.

Mr. Chapman is the lead coordinator for Hydrex’s GIS Services and Drone Division. He maintains the company’s arsenal of Unmanned Aerial Systems (UAS), and trains and deploys field personnel in the use of these systems. John is well versed in processing and analyzing the data collected to generate reports pertaining to stockpile inventories, landfill density studies, pit progression, and vegetation health analysis.

Mr. Chapman is proficient in several programming languages, including Python, Java, Flex, and C++. He uses these to develop customized software solutions and web applications, providing companies with user-friendly tools and interactive maps to assist with the management and access of spatial related data and documents.

John Chapman’s wide range of technical skills allows Hydrex to provide clients with customized and scalable solutions for their environmental, data management, and presentation needs.


  • Evaluating TIFFS (Toolbox for LiDAR Data Filtering and Forest Studies)  in  Deriving Forest Measurements from LiDAR Data.” Journal Article. Mathematical and Computational  Forestry &  Natural-Resource Sciences (MCFNS). 2010
  • Evaluation of LiDAR Derived Estimates of Forest Measurements.” Masters Thesis. Stephen F. Austin State University. 2010.


1120 NW Stallings Dr, Nacogdoches, TX 75964
Toll Free: 1 (888) 9-HYDREX
(936) 568-9451 | info@hydrex-inc.com
Satellite Office: Houston, Texas
Serving clients throughout the United States. Licensed in Texas, Louisiana, Arkansas, Mississippi, Alabama, Tennessee, Georgia, and Florida.