topographic framework

The first step of the field survey was aimed to build a topographic network based on geographic coordinates.

As first instance we designed a topographical framework of the site by placing and processing topographic landmarks.

The network was aimed to be used as reference for all – present and future – topographic survey activities within the site.

After the placement of the landmarks in the ground (by  drilling stones and screwing a screw into the stone), measurements have been carried out by GNSS.

The survey has been implemented by setting RTK GNSS base and rover. The coordinates of the base station have been calculated by static 24 hours measurement of the vertex. The base acts like a remote base station which you can setup to receive RTCM correction data from. The other landmarks have been measured by the rover connected via UHF radio to the base station.

All the reference points have been collected in WGS84 and turned in to the projected reference system UTM38N (EPSG:32638). For each vertex has been created a precise documentation with coordinates and location.

Setting and measurement session of the GNSS base station and rover system