Most Recent Height Data

Detailed measurements of the height of the ground and the structures on it can provide a new dimension to the understanding and management of the local, national or global environment.

Photogrammetric Digital Terrain Models (DTM) and Digital Surface Models (DSM) are available nationwide in a variety of formats to suit your application. Created photogrammetrically from our high-resolution aerial photography, our DSM provides a 2m grid of heights that includes surface features such as buildings and trees, whilst our DTM provides a bare earth model on a 5m grid.

Products available:

2m Digital Surface Model

DSM (Digital Surface Models) The Earth’s surface including buildings and vegetation, with a 2-metre grid spacing.

Resolution: 2m

Accuracy XY: ± Up to 1m rmse

Accuracy Z: ± Up to 1.5m rmse

5m Digital Terrain Model

DTM (Digital Terrain Models) The Earth’s terrain excluding buildings and vegetation, with a 5-metre grid spacing.

Resolution: 5m

Accuracy XY: ± Up to 1m rmse

Accuracy Z: ± Up to 1.5m rmse

5m Contours