Permanent Ground Control Points

Implement once, and use every season safely!

A reliable field documentation infrastructure requires this application. Unlike traditional geo-coordinate markings, ground control point constructions designed by FieldTech are durable for up to 40 years, visible on the ground, and tightly set into the ground.


Plate Diameter: 120-150 mm

Concrete Body Diameter: 220-270 mm

Stainless Drawn Steel Pipe Diameter: 60-100 mm 

Total Height: 500-550 mm

Bolt: M5

Weight: 20-22 kg

Material: Stainless steel, steel fibre reinforced concrete

High Precision Static Survey and Leveling

A sufficient number of permanent ground control points are carefully and tightly implemented into the ground at strategic points according to the areas to be surveyed. If the ground is rocky, triangulation points are marked with nails. Both plates and nails are labeled on the site. The head of each bolt mounted on the plates is measured, and under-cm geo-coordinate data is obtained with specific methods. Fieldtech has an expert team that specialises in precise geo-coordinate measurements and all necessary equipment. The field data is post-processed with the desired precision, reported, and delivered to the customer on time.

Base Map

FieldTech adds layers of schematic plans of archaeological remains and required elements to tailormade 1/1000 scale digital basemaps generated from small to large areas. Aerial and terrestrial surveying and mapping methods are used during basemap generation. Archaeological survey and excavation projects subsequently use the basemaps to add new layers and plan landscape, vehicle, and pedestrian roads.

Digital Elevation Model

Digital elevation models are one of the outputs of high-precision surveying. Thanks to point clouds generated with aerial and terrestrial mapping and 3D stereo methods Stereo techniques are used to remove features like cars, houses, and trees from the digital terrain model in order to generate digital elevation models. The representation of topography with a high-resolution DEM (digital elevation model) is substantial for noticing and interpreting elevation changes.

Orthophoto Map

Both vertical and oblique flights capture data in aerial photogrammetry to produce high-resolution and precisely coordinated orthophotos. Archaeological remains are primarily vectorized by using orthophoto maps. Unmanned aerial vehicles allow us to rethink the documentation methods. Compared to traditional documentation methods, the aerial photogrammetry process is easy, quick, and reliable. The use of graph papers and their digitization has been replaced by real-time and hybrid methods. However, we use the right system according to the size and qualifications of the site.

3D Model and Sections of the Site

3D Site Model:

There are several reasons to generate 3D virtual models of archaeological sites:

  • Recording current and subsequent situations
  • Presentations
  • Animations
  • VR, and virtual tour integrations, etc.
  • Photogrammetry is used to generate reliable photogrammetric 3D models and 3D animations of the sites.

Land Sections:

Sections tell a lot about land use. Each ancient settlement has its own characteristics: location, topography, urbanisation, architecture, transportation network, infrastructural system, and culture. Sections of the site can help interpret the positioning criteria for defense, public, civil, religious, or commercial buildings.


Land sections are beneficial to figure out:

  • Topography
  • Relationship among topography, natural elements, and buildings
  • Urbanisation strategies
  • Accessibility
  • Orientation of buildings, etc.