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Global Positioning Systems (GPS)
Global Positioning Systems (GPS) and Geographic Information Systems (GIS) provide farmers with the capabilities to manage field variability on a site-specific basis. GPS is a constellation of 24 satellites orbiting 12,660 miles above the Earth that is used for determining latitude and longitude (position). When installed on agriculture equipment, a GPS receiver provides position information for soil sampling, crop scouting, applying inputs, planting, harvesting and other applications. A GPS receiver allows farmers to continually return to the same location in a field.
Publications
- Application of CORS in Agriculture
- Considerations for Adopting & Implementing Precision Ag Technologies
- Explanation of GPS/GNSS Drift
- Fuel Conservation Strategies for the Farm
- Global Positioning System (GPS) Technology: GNSS
- GPS Correction Services for Alabama
- GPS/GNSS Related Terminology
- Guidance Systems: Terrain Compensation
- Handheld GPS Units: Considerations for Purchase and Use
- Precision Agriculture: Commonly Used Terms & Applications
- RTK Networks - Cellular Modem Communication Technology
- RTK Networks - Single Baseline and Network Solution Options
- RTK Networks - Real-Time Data Correction Protocols
- Using GPS as a Source for Ground Speed Radar Input
- Update on GPS: New Civilian Accessible Signals – L1C, L2C, and L5
- Update on GPS: Explanation of GNSS
Presentations
- Basics of GPS/GNSS Equipment and Accuracy
- Effects of Transmission Speed on Equipment Performance and Utilizing Spatial Equipment Performance Data for Management Decisions
- Getting Started with Precision Agriculture
- GPS: Accuracy and Repeatability in Ag
- GPS/GIS Applications for Farming Systems
- Continuously Operating Reference Stations (CORS)
- Introduction to GPS (Alabama PA Conference 2009)
- Handheld GPS Uses (Alabama PA Conference 2009)
- Successful Implementation of Real-time Networks and Advanced GPS/GNSS (Spring 2012)
Blog Articles 
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OPEN POSITION: Master of Science Degree at Auburn University in Machinery Automation / Precision Ag (Fall 2013)
The Biosystems Engineering Department at Auburn University has a research assistantship, at the Master of Science (MS) level, available in the area of machinery automation focused on enhancement of agricultural equipment for site-specific management. The... more
2013 Summer Internship with Alabama Precision Ag
The Alabama Precision Ag Team is looking for an energetic young student to fill an open 2013 summer internship. The internship would include supporting research and education activities in the area of precision agriculture. Responsibilities... more
Regional Extension Agent Position in SW Alabama
The Alabama Cooperative Extension System (ACES) has just announced an OPEN POSITION Agronomic Crops extension position in southwest Alabama. The qualified person will provide research-based information and learning opportunities to agricultural row crop producers in... more
OPEN POSITION: Regional Extension Agent of Agronomic Crops – SW Alabama
The Alabama Cooperative Extension System (ACES) has announced an opening for an Regional Extension Agent (REA) position in Southwest Alabama focused on Agronomic Crops. The Extension program for a successful candidate will include emphasis in... more
Grower benefits of Automatic Section Control
Automatic section control (ASC) or sometimes termed “auto-swath” continues to be heavily adopted by US growers. The main benefit the technology has provided has been savings on inputs. Sprayer and planter manufacturers have almost made... more
