TOPOGRAPHY

The RTK GPS-1200 and viva-15 will be used for establishing a calibration station, correlating
benchmarks, and undertaking any required topographic survey in an open area.
The RTK system can be operated in either dynamic mode, fixing every second or
at a user specified time interval or distance, for topographic survey. Alternatively
the system can be used in fast static mode, for detail surveys, occupation times
are in the order of a few seconds, or in static mode, geodetic baselines can be
observed yielding accuracies of + 5mm + 1ppm. The system is either deployed
by pedestrian in a backpack, with the GPS antenna on a plumbing pole, or is
mounted on our eight wheel drive tracked amphibious All Terrain Vehicle (ATV).
In less rugged terrain the unit is mounted on a conventional four wheel drive
vehicle.
Detail surveys to locate man made features carried out by ‘stop and go’
pedestrian operations and by total station observations.
Total Station will be employed to survey any areas where satellite coverage is
restricted due to obstructions. The equipment will consist of a Leica Total Station
and Electronic Notebook observations being recorded on the memory card.