Aerial surveys for topographic mapping

Topographic mapping using digital aerial surveys

APEM use specialist sensors mounted in purpose designed survey aircraft to capture high resolution data of the landscape.

LiDAR technology plus advanced photogrammetric techniques turn the 2D imagery into high density 3D models that accurately map the topography of the site.

Industry-leading aerial topographic surveys

APEM are a global leader in aerial topographic surveys. We have been commissioned to undertake aerial surveys of sites of interest by clients from the water and power sectors, the construction industry and government agencies.

Using our specialist sensors and data processing technology, APEM capture a combination of LiDAR and/or ultra-high resolution imagery – better than 3 cm GSD – in multiple wavebands from red-green-blue to near infrared.

We use the data to generate high density topographic models such as point clouds, digital surface models (DSM) and digital terrain models (DTM), as well as accurate ortho-mosaics and photo-realistic 3D models and 360-degree virtual flyovers.

The surveys are carried out by our expert team of technicians, project managers and image analysts, using our state-of-the camera systems.

Keeping the work in-house from start to finish ensures high quality data for our clients.

Benefits of aerial topographic surveys

Our innovative approach to topographic mapping minimises delays caused by land ownership or access issues and reduces the number of ‘boots-on-the-ground’, which is of significant health and safety benefit to our clients.

APEM’s aerial surveys also provide high quality data in remote, inaccessible or hazardous areas. In addition, we can survey either very large areas of up to 200 square kilometres or multiple small sites in a single day.

Topographic aerial surveys tailored to your needs

Our surveys are bespoke and can be tailored to meet your needs. For example, with our in-house processing techniques we can produce point clouds with up to 100 points per square metre – providing an unprecedented level of detail.

Our services include providing topographic data for:

Earthworks volume calculation during construction projects
Cut and fill analyses
Catchment modelling – slope, watershed analysis and channel mapping
Route optimisation analyses
River restoration projects
3D visualisations

Have a question about this service?

The team at APEM would be happy to answer any questions you have or demonstrate our innovative modelling technology. Please use the form below to get in touch.