20cm Accuracy Satellite Surveying for Mining

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PhotoSat’s 20cm accuracy satellite surveying shortens timelines and saves costs throughout the mining exploration and production process.

Mining engineers are using our elevation data for:

Experience

PhotoSat has completed over 900 satellite surveying projects globally since 2004:

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Highest accuracy

PhotoSat produces the most accurate 1m bare earth elevation grids with 1m contours from satellite photos using our unique geophysical stereo satellite processing system. We produce mine surveys with 4 times the elevation accuracy of conventional satellite elevation mapping. Our accuracies have been proven using tens of thousands of ground survey points for comparison. View our Proof of Accuracy Reports.

To achieve 20cm accuracy PhotoSat uses a unique and proprietary set of algorithms that were derived from oil and gas seismic processing. Find out more about our data processing methods on the Technology page.

PhotoSat satellite surveying benefits:

  • Engineering quality mining surveys available globally.
  • Simplifies the surveying process:no in-country presence or permits.
  • Cost-effective alternative to ground surveying, LiDAR and ortho photogrammetry.
  • Minimizes the exposure of field crews when accessing hazardous or remote areas.
  • Custom formats and projections.

Satellite surveying pricing

The digital elevation package is provided on a project-by-project basis. Please provide us with the extents of your project area and we will prepare a quote.

Mapping Package Includes:

  • 1m bare earth digital elevation grid (DEM), accurate to 20cm
  • 50cm or 1m contours
  • 50cm satellite ortho photo
  • 1m colour elevation image
  • 1m slope direction (aspect) image

For more information contact us at info@photosat.ca or 1-604-681-9770.

 

50cm satellite ortho photo             1m colour elevation image

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© DigitalGlobe 2014

1m slope direction image.              1m contours

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50cm WorldView-2 satellite photo & PhotoSat's elevation image over the same area: Image copyright DigitalGlobe

50cm WorldView-2 satellite photo & PhotoSat’s elevation image over the same area
© DigitalGlobe 2014

50cm WorldView-1 satellite photo & PhotoSat's elevation image over the same area: Image copyright DigitalGlobe

50cm WorldView-1 satellite photo & PhotoSat’s elevation image over the same area
© DigitalGlobe 2014

50cm WorldView-2 satellite photo & PhotoSat's elevation image over the same area: Image copyright DigitalGlobe

50cm WorldView-2 satellite photo & PhotoSat’s elevation image over the same area
© DigitalGlobe 2014

50cm GeoEye-1 satellite photo & PhotoSat's elevation image over the same area: Image copyright GeoEye

50cm GeoEye-1 satellite photo & PhotoSat’s elevation image over the same area   
© DigitalGlobe 2014

50cm WorldView-1 satellite photo & PhotoSat's elevation image over the same area: Image copyright DigitalGlobe

50cm WorldView-1 satellite photo & PhotoSat’s elevation image over the same area 
© DigitalGlobe 2014

50cm WorldView-2 satellite photo & PhotoSat's elevation image over the same area: Image copyright DigitalGlobe

50cm WorldView-2 satellite photo & PhotoSat’s elevation image over the same area
© DigitalGlobe 2014

50cm WorldView-1 satellite photo & PhotoSat's elevation image over the same area: Image copyright DigitalGlobe

50cm WorldView-1 satellite photo & PhotoSat’s elevation image over the same area
© DigitalGlobe 2014

Deliverables

  • 50cm precision colour satellite ortho photo
  • 30cm accuracy 1m bare earth elevation grid (DEM)
  • 50cm or 1m contours (plus 5m, 10m and 50m contours)
  • Colour elevation image (in areas of sparse vegetation)
  • Direction of slope image (in areas of sparse vegetation)

Available Formats

  • Contours: 3D ArcGIS Shapefile or 2D MapInfo or 3D DWG
  • Topographic grid: Floating Point GeoTIFF or .MIG (MapInfo compatible) or ASCII XYZ
  • Colour Image: GeoTIFF

Additional formats are available; please let us know which format you require.

License Agreement

  • DigitalGlobe License Agreement or Airbus: Pleiades End-User License Agreement
  • PhotoSat General Terms of Sale

Accuracy & Ground Control

PhotoSat’s elevation grids have a relative vertical accuracy of 30cm RMSE, and a relative horizontal accuracy of 50cm RMSE over horizontal distances of 10km.

To achieve 30cm RMSE absolute accuracy, a minimum of three surveyed ground control points accurate to better than 10cm are required for areas up to 200km². For larger projects, we request one ground control point every additional 200km². In the absence of ground control points the relative accuracy specifications apply and absolute accuracy is expected to be better than 3m RMSE.

Water

  • Hydro dams
  • Hydrographic mapping
  • Direction of slope analysis
  • Drainage analysis
  • Flood plain analysis and modeling
  • Wetland management

Land Development

  • Landslide risk assessment
  • Line of sight analysis
  • Cut and fill calculations and construction

Transportation and Utility Corridors

  • Power line planning and construction
  • Railway planning and construction
  • Right-of-way planning
  • Road and highway planning and construction
  • Transmission line planning and construction
  • Transportation corridor design

Alternate Energy

  • Wind farm planning and management

Mapping and GIS

  • DSM (digital surface models)
  • DEM (digital elevation models)
  • DTM (digital terrain models)