Global Positioning Systems (GPS)

Since 2002, the project has been using three handheld GPS units to collect point data from sites or isolated artifacts. For the 2005 field season, we plan to add the use of a Pocket PC with a CF GPS reciever.

	Garmin GPS 12XL Personal Navigator (12 Channel) Manual
	Garmin eTrex Vista 24 MB GPS with Compass, Altimeter, and PC Cable Manual
	Magellan Meridian Platinum GPS with Waterproof Exterior, and MapSend WorldWide Basemap Manual
	Pharos PFD22 Pocket GPS Portable Navigator for Dell Axim, incl. CompactFlash GPS Receiver, SW & US Maps Pharos GPS Manual

The data collected with the three handheld GPS have not undergone differential correction. As a result, its accuracy is between approximately 5-15m. This GPS data was later projected over Landsat TM satellite imagery (30 m spatial resolution) in a Geographic Information System (GIS).