Filming for Reclamation Works

Obtaining a digital elevation model and topographic plan of the area to identify potential watercourses for land reclamation works.

As part of this project, our team conducted a comprehensive aerial survey of a large land plot to produce a digital elevation model (DEM) and a 1:500 scale topographic map. The resulting data was used to analyze the terrain and identify potential watercourses necessary for subsequent reclamation planning.

 

Field work

Aerial photography was carried out using an unmanned aerial vehicle. Geoscan 201, equipped with a camera Sony ILX. This configuration allows for the production of materials suitable for creating large-scale topographic plans and detailed digital elevation models.

Key shooting parameters:

  • Work area — 113 km²

  • Number of flights - 7

  • Spatial resolution — 4.5 cm/pixel

  • Number of photos – 12,100

  • Duration of the field stage (Air Defense + AFS) - 4 days

Despite the large area, the survey was completed within a tight timeframe, meeting all requirements for coverage and the quality of the source data.

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Office data processing

After completing the fieldwork, photogrammetric processing of the aerial survey data was completed. This stage included:

  • photo alignment;

  • construction of a dense point cloud;

  • formation of a digital elevation model;

  • creation of an orthophotoplan.

AFS data processing period - 4 days.

The result was obtained orthophotomap with a spatial resolution of 4.5 cm/pixel, providing high surface detail and suitable for engineering and analytical tasks.

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Final materials

The final stage of the project was the creation topographic plan at a scale of 1:500, meeting the requirements for engineering surveys and design work.

Deadline for completing the topographic plan — up to 45 days.

The obtained materials allow:

  • accurately assess the features of the relief;

  • identify depressions and directions of water flow;

  • use the data in further design of reclamation and engineering solutions.

topoplan

As a result, the client received a complete set of up-to-date spatial data—from the initial orthophotomap to a large-scale engineering topographic plan. This approach enables informed design decisions and significantly reduces risks in subsequent stages of the project.