OS MasterMap Networks - Water Layer provides a detailed centre line following the curve of the waterway precisely. It includes the coordinates of watercourse sources and where they meet, exactly.
This product is updated quarterly
With this water network data, you can look up the height of any water course, along with its flow direction, gradient, length and width anywhere along its length.
As an island, water defines Great Britain. No other visualisation of our nation’s watercourses details the heights of watercourses in relation to sea level with this level of precision.
For planners, for surveyors, for engineers – this Layer offers the potential to model in 2D and 3D like never before, thanks to the clarity of river flow, gradient and river widths.
From aqueducts to tunnels, with annotations of flow direction, OS MasterMap Water Network Layer provides the detailed mapping that’s most useful – including underground watercourses (inferred from entry and exits).
OS MasterMap Networks - Water Layer provides a detailed centre line following the curve of the waterway precisely. It includes the coordinates of watercourse sources and where they meet, exactly.
Download a small area of OS MasterMap Networks - Water Layer.
Or try out the real thing by applying for a Data Exploration Licence
The feature types within the product are:WatercourseLink: This feature represents the alignment of a watercourse. The majority have been derived from Ordnance Survey detailed topographic data, made available to customers as the OS MasterMap Topography Layer.HydroNode: A HydroNode feature explicitly represents the start, the junctions and the end of each watercourse, as well as places where there's a change in the real-world-related attribution.
OS MasterMap Water Network Layer is fully interoperable with all existing layers of OS MasterMap and enables a new generation of analysis, policy development and environmental reporting.
The OS MasterMap Water Network is projected in the ESPG 7405 OSGB36 / British National Grid + ODN. This projection is used as it specifies that the Z value is Ordnance Datum Newlyn.
Download a small area of OS MasterMap Networks - Water Layer.
Or try out the real thing by applying for a Data Exploration Licence
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