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How accurate is Height Data and LiDAR?

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The vertical accuracies vary depending on the dataset and how the data has been created.

The accuracy for each dataset available is listed below.

Height Data

  • Getmapping Height Data has a vertical accuracy of 50-60cm +/- RMSE and a horizontal accuracy of <1m +/- RMSE
  • NEXTMap Height Data has a vertical accuracy of around 1m +/- RMSE and a horizontal accuracy of 2.5m +/- RMSE

LiDAR

  • Environment Agency LiDAR data has a vertical accuracy of 5-15cm +/- RMSE and a horizontal accuracy of 40cm +/- RMSE
  • Atkins Global LiDAR 15-25cm +/- RMSE 
  • The Geoinformation Group LiDAR has a vertical accuracy of 15cm +/- RMSE and a horizontal accuracy of 1.5m +/- RMSE
  • Bluesky LiDAR has a vertical accuracy of  up to 10cm +/- RMSE and a horizontal accuracy of up to 5cm +/- RMSE

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