Cartographic analysis and GIS for your projects

From data to an explained decision

A colourful map proves nothing if nobody knows what it shows or how it was calculated. Before any analysis we check the sources, their date, their scale and their coordinate system. With that in place we identify constraints, compare alternatives and point out where more detailed measurement is needed.

It works the same for a plot on a hillside as for hundreds of hectares. For a solar farm, a power line corridor, an industrial estate, a road or a railway, the work starts from a common base: orthophoto, terrain model and contour lines. On that base we calculate volumes, shadows and drainage networks, and everything fits together because it all comes from the same measurement.

Studies you can request

• Slope and aspect, to know where you can build, plant or install and where you cannot.
• Shadows for specific dates and times, over the ground, the buildings or the rows of panels.
• Viewsheds: what can be seen from a point, and from where whatever you build will be seen.
• Drainage networks, flow directions and contributing catchments calculated from the relief.
• How a property or an area has changed, using orthophotos and historical aerial flights.
• Suitability studies, with criteria we agree with you before calculating anything.

When we do fieldwork

Many studies can be solved with carefully checked public mapping. When its resolution, date or coverage falls short, we propose a drone flight or checks in the field. Shadow and visibility studies usually need it: a terrain model does not know there is a huge pine next to the boundary or a two-storey house on the plot next door.