Aerial Mapping & Drone Surveys

Unmanned Aerial Vehicles (UAVs) technology has been around for nearly a century, but it certainly wasn’t used in the way we see them used today. As the technology continues to evolve, AUAV continues to stay in step with the ever-changing scope.

At AUAV, we use unique skills and advanced equipment to bring customers a first-class aerial surveying and mapping experience. AUAV strives to provide superior quality aerial drone surveying and mapping services with highly accurate topographic maps and centimetre-level accuracy at any given time.

Equipped with high-end surveying drones and a crew of skilled surveyors, we deliver results faster, enabling our clients to make agile decisions much more quickly.

The resolution of our maps and survey data is usually between 1- 3cm per pixel (1-3cm GSD). We process the data to deliver full 3D terrain models (e.g., DSM, DTM), and the accuracy of the 3D data is generally around 50mm horizontal and 50-80mm vertical.

What is a Drone Survey?

Drone survey and mapping.

A drone survey uses drones to capture data with the help of downward-facing sensors, such as LIDAR payloads, RGB, or multispectral cameras. A drone survey with an RGB camera photographs the ground several times from various angles, and each of these images is tagged with coordinates.

A photogrammetry software uses this data to create geo-referenced orthomosaics, 3D models, or elevation models of the project area. Using these maps, information such as volumetric measurement or high-accurate distances can be extracted.

Unlike satellite imagery or manned aircraft, drones have the ability to fly at a much lower altitude, capturing high-resolution and high-accuracy data at a much lower cost while being independent of atmospheric conditions such as rain or cloud cover.

What is Drone Mapping?

Drone mapping into the evening.

Drone mapping is the graphical representation of information based on spatial relationships. The drones capture hundreds of aerial images, and these images are then stitched together using specified mapping software to create a larger and more composite image, orthorectified imagery, and digital elevation models in CAD and GIS formats.

Drones are used to map large-scale sites or estates, difficult to access sites, and detailed buildings where the traditional survey is unfeasible, such as heritage sites.

Why Use Drone Surveying and Aerial Mapping?

Some benefits of using drone surveying and aerial mapping include:

Provide Accurate And Reliable Data A single drone flight can produce thousands of measurements. These can easily be represented in different formats such as point cloud, DTM, contour lines, DSM, orthomosaic, etc. Each pixel of the aerial map or point of the 3D model contains 3D geo-data.
Provide Accurate And Exhaustive Data Quickly An aerial surveying drone captures huge amounts of survey imagery and data of complex and large projects in a short period of time. Aerial surveys are great for reporting quantities and conformance.
Ability To Map Inaccessible Areas Aerial mapping drones are limitless. They can fly almost anywhere – unreachable areas, unsafe steep slopes, or harsh terrain unsuitable for traditional measuring methods.
Safely Track The Progress Of Your Project Drones give you the ability to monitor the progress of your project from a distance. This is a big step towards a more efficient and safer monitoring process.

Drone Mapping and Surveying Service Applications

Drone inspection at sunset.
Some applications where drone mapping and surveying are used include:
  • Geo-referenced orthophotography.
  • Environmental and coastal monitoring.
  • Visual inspection.
  • Topographical surveys for infrastructure development.
  • Land management and development.
  • Volumetric surveys for mines, quarries, and landfills.
  • Coastal erosion monitoring.
  • Visualisation.
  • Land and vegetation classification (NDVI).
  • Cadastral maps.
  • Precise measurements.
  • Urban planning.
  • Data inputs to flood modelling.
  • Subsidence and landslip analysis.

Why Use AUAV for Drone Survey and Aerial Mapping?

Drone surveying coastal region.
  1. Competitive pricing.
  2. Save time on collecting data.
  3. Safely access dangerous or difficult to reach areas.
  4. No delays from interfering with work on the ground (no downtime).
  5. Reduce post-processing time.
  6. Access survey results immediately on InSite – our online data platform.

Frequently Asked Questions

The best drones for surveying include PPK or RTK enabled drones. Some of them are:

  • Phantom 4 RTK
  • Matrice 210 RTK V2
  • Matrice  300 RTK

Our map and survey data resolution is usually between 1-3cm per pixel (1-3cm GSD). This data is processed to deliver full 3D terrain models (e.g., DSM, DTM). The accuracy of the 3D data is generally around 50mm horizontal and 50-80mm vertical.

Our standard deliverables include:

  • High-resolution imagery.
  • Surface/terrain models with contours.

Other deliverables include 3D reality modelling for digitising as-built assets.