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Mapping natural sites

LiDAR mapping and oblique imaging for detailed analysis of complex and inaccessible natural sites

We deliver precise and reliable mapping of natural sites, even in areas that are remote, difficult to access or characterised by complex terrain. This capability is especially valuable in regions like Hong Kong and the wider Asia‑Pacific, where steep slopes, dense vegetation and limited ground access can pose major challenges to conventional surveying methods.

Our unique “oblique + nadir” acquisition approach combines angled and vertical perspectives to capture detailed, high‑resolution data across natural landscapes. Using advanced LiDAR technology and helicopter‑borne photogrammetry, our teams are able to significantly reduce shadow zones, limit distortion and generate highly accurate spatial models of large and complex environments.

This method provides comprehensive coverage of rugged terrain, coastal areas, reservoirs, woodland regions and ecological sites, supporting applications such as hazard assessment, slope stability studies, environmental protection planning and natural asset management. By integrating multiple viewpoints and sensor types, we offer a complete and reliable picture of site conditions, enabling stakeholders to analyse, plan and manage sensitive natural areas with confidence.

Our mapping outputs are delivered in accessible formats that allow engineers, environmental specialists and project owners to visualise terrain, assess risks and make informed decisions throughout the lifecycle of their projects.

Our solutions

LiDAR surveys of natural sites

 

  • LiDAR and photo technology for small, medium and large natural sites
  • Pentacam acquisition for photorealistic rendering
  • Additional thermal and infrared surveys

Tailor-made 3D modelling and analysis

 

  • LiDAR and photogrammetric point clouds
  • Orthophoto and very high-resolution oblique images
  • Digital model and 3D mesh
  • Detailed mapping in two and three dimensions
  • Analysis and reports

Our advantages

  • Over 15 years’ experience of surveying mountains, valleys and glaciers
  • Our modular acquisition system enables us to carry out vertical or oblique surveys, with flexible installation on a variety of aerial and terrestrial platforms.
  • Oblique helicopter surveys to avoid shadows and distortion
  • LiDAR technology allowing to measure under the vegetation

Applications

Mountains and glaciers

 

Swiss precision for complex terrain and ski resorts:

  • Monitoring snow stocks and optimizing grooming
  • Landslides
  • Avalanche analysis
  • Landslides and rockfalls
  • Monitoring glacier melt

Hydrology and coastline

 

Nadir and oblique surveys for flood modelling and coastal cliff management

  • Geomorphological studies
  • Analysis of volumes, trends and erosion
  • Climate research and resilience

Geology

 

  • Geological and mining site surveys
  • Stratigraphic studies
  • Determining the location and orientation of fractures
  • Study of rock falls
  • Monitoring faults
  • Hydrogeological studies of catchment areas

Forestry

 

Complete data from all angles for the comprehensive and accurate modelling of forest areas.

  • Forest inventories
  • 3D canopy modelling
  • Estimation of biomass volumes
  • Single tree extraction
  • Detection of invasive species

To find out more about our expertise,
visit the Sixense Helimap website.