Surveying with GPS, Total Station and Auto Level

Total Station and GPS Surveying

Along with my main thesis project, several surveying sessions took place throughout the year. These surveying sessions were conducted as if they were for a client, so data integrity and professionalism were graded highly. Field notes were taken as data was collected.


GPS Survey

Our first task was to use a handheld GPS Unit, a Trimble GeoExplorer 2005 Series GeoXH, to conduct a GPS survey of an area on campus. These areas were surveyed by groups, and had to be set up so that they would be easily merged with other group data. For example, parking lot lines had to follow a same-name convention, so that final processing would be seamless across multiple group survey zones.





Figure 1 - GPS Survey with topological errors, to be corrected

Once the data was imported, it was corrected topologically, so that polygons were seamless across multiple group boundaries. The result can be seen in the final output map below.


Figure 2 - GPS Survey with seamless topology


Total Station Survey

The second session of surveying incorporated the use of a Total Station. This Total Station Survey employed the use of the Nikon Total Station DTM-302 Series. Again, like the GPS Survey, groups were given boundaries to collect data points in, and professionalism was highly graded. Field notes were meticulously taken.






Figure 3 - Digital Elevation Model generated from surveyed points
Figure 4 - Model without visible surveyed points

Figure 5 - Digitized land features for Class boundary



Auto Level Survey

A final surveying session employed the use of an Auto Level. However, this did not require the creation of a map layout.