This getting started guide provides instructions for using OS MasterMap Water Network Layer in different applications. Users with limited technical knowledge will be able to follow this guide.
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OS MasterMap Water Network Layer is a digital representation of the watercourses in Great Britain as a series of connected features. The data represents the approximate central alignment of watercourses and is attributed to provide a range of information about the section of watercourses they represent.
The product has two core feature types:
WatercourseLink: A WatercourseLink 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 product.
HydroNode: A HydroNode feature explicitly represents the start, junctions and end of each watercourse, as well as places where there's a change in the real-world-related attribution.
OS MasterMap Water Network Layer supports a wide range of customers’ applications. The product can be used alone or in combination with other Ordnance Survey products, such as OS MasterMap Topography Layer, OS MasterMap Imagery Layer and OS Terrain 5. It will significantly enhance systems used to manage waterways and rivers and the flood risk they pose.
The OS MasterMap Water Network Layer product can be used for applications such as:
Understanding flood risk
Flood risk mitigation planning
Flood response planning and execution
Detailed flood modelling for insurance and land and property
Environmental impact analysis
Tracking water flows and any contamination
Asset management and protection
The management of statutory directives relating to watercourses
Ecology studies, for example, species migration
Analytics and visual interpretation, particularly when used in combination with other Ordnance Survey products, for example, OS Terrain 5
This getting started guide focuses solely on using the product in GML format.
Guidance on how to use this product in GeoPackage and vector tiles formats can be found in the following documents:
