Datasets Activity Stream Suggest Data About Submit Include Sub-Organizations Order by Relevance Name Ascending Name Descending Last Modified Popular Go 1 dataset found (2 resources) Tags: DTM Sheets 201-250 Filter Results OSNI Open Data - 10M DTM - Sheets 201-250 A Digital Terrain Model (DTM) is a digital file consisting of a grid of regularly spaced points of known height which, when used with other digital data such as maps or... 1 HTML 1 JSON