Digital Elevation Models

DATA TYPES

 

Mapping: Elevation, Surface, Terrain.

A Digital Elevation Model (DEM) is a 2D image file, where each cell in the image has an elevation assigned to it. When brought into a Geographic Information System (GIS) software package such as QGIS, Global Mapper, or ArcGIS the user can perform a variety of numerical and visual analysis.

In England, the Environment Agency provide DEMs at 1m resolution for most of the country. Our DEMs can be produced at 5cm resolution, allowing more accurate mapping in site master planning, planning earthwork movements, hydraulic modelling and more.



The State of the Industry

The world will need to spend at least $57 trillion on building and maintaining infrastructure between now and 2030, saving money on every facet of a project is a necessity. Critical Infrastructure services need to be smarter, greener, and more efficient than ever, in today’s technologically advanced world a comprehensive digital overview is essential for success in design and maintenance. Our primary focus is on working with our partners to realise the full potential of asset digitisation from drone data.

Digital Surface Model (DSM)

The earths surface, including any objects such as trees or buildings.

 

Digital Terrain Model (DTM)

The earths bare terrain, with all trees and objects removed.

 

“From proof of concept through to actionable surveys Future Aerial produced some exeptional data within the extremely stringent safety standards at Crossrail.

We used the data across all our teams for many more uses than originally intended and for many months during the development on site.

dtm

DIGITAL ELEVATION MODELS - SURFACE VS TERRAIN 

DEM - Use Cases

Future Aerial provide DEMs for a wide variety of clients and purposes, here are a few examples:

  • Topographic Surveys
  • Flood Risk Studies
  • Stockpile Measurements
  • Volume Calculations
  • Coastal Monitoring 
  • Asset Inspections
  • Golf Course Mapping

 

Crossrail
The requirement here was to produce highly accurate data for planning and setting out across the key supply site at C610 and to explore the potential uses of 3d mesh models in partnership with Bentley context capture and Costain. Data was used every day by all the teams involved at Plumstead and still continues to be used as development continues.

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Digital Elevation Model Outputs   

We acquire, process and deliver accurate, high resolution DEMs for use in AutoCAD and GIS software packages. As part of the same drone survey, we can also provide the following outputs:

  • Point cloud .LAS or similar
  • Georeferenced Aerial Photos
  • Orthomosaic imagery (GeoTIFF) or similar
  • 3D Models and Meshes (OBJ)

Check out some of our other data types via the link below to find out how DEMs can be used to enhance projects across a wide range of disciplines. Contact us at info@futureaerial.com to find out more.

SOME OF THE COMPANIES WE WORK WITH

SOME OF THE COMPANIES WE WORK WITH

bbc
costain
FT
Royal-haskoning
crossrail
Environment-agency
Erith
National-Trust
JBA
hpc
hs2
Virgin
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Email : info@futureaerial.com
Phone : 020 34758048

Email : info@futureaerial.com
Phone : 0207 7577489

Email : info@futureaerial.com
Phone : 0207 7577489

85 Great Portland Street
First Floor
London
W1W 7LT

Future Aerial Innovations,
50 Ashbourne Road,
London W5 3DJ

Future Aerial Innovations,
50 Ashbourne Road,
London W5 3DJ