school of Agriculture and Natural Resources
currently has facilities for both global
positioning systems (GPS) and geographic
information systems (GIS). Morrisville State College
operates a GPS/GIS computer laboratory to train students in
this cutting-edge technology. The students use the laboratory
to gain hands-on experiences on both GPS and GIS. The
laboratory (located in 204 Charlton Hall) is equipped with 16
state-of-the-art computer systems that run both ArcView GIS
3.3 and ArcGIS 8.3 (both a
Systems Research Institute, ESRI).
utilizes specially-coded satellite signals that
can be processed in a GPS receiver, thereby
enabling the receiver to accurately mark our
position on or above the earth's surface.
Students who take precision farming, soil and crop
science, photogrammetric mapping, and GPS/GIS classes use
204 Charlton for a variety of exercises and projects including
field mapping and GIS. The
students also collect GPS data using a variety of GPS
systems (more than 18 Garmin GPS 12 and Magellan GPS 310
units) including real-time and post-processing differential
GPS (DGPS). The real-time DGPS systems include a couple
of Trimble GeoExplorer 3.0 units with a beacon-on-a-belt for
receiving differential corrections from the USCG
beacons. Numerous WAAS-based DGPS systems are also
available for classroom instruction, laboratory exercises, and
class projects. These include Garmin GPS 72, Garmin GPS
76, and Standard Horizon NAV 40 real-time DGPS systems.
A post-processing DGPS system is also available.
The Ashtech system is comprised of a roving
unit and a base
station located in Charlton Hall (computer software
is utilized in this case to differentially-correct the
collected GPS data). Finally, a John Deere GreenStar
precision farming is also available for both teaching and
demonstration. The system includes a StarFire GPS
receiver that allows for real-time differential corrections of
GPS measurements based on signals from a satellite or the WAAS
operated by the Federal Aviation Administration (FAA).