OS MasterMap Water Network Layer Getting Started Guide

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.

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.

Example extract from OS MasterMap Water Network Layer showing WatercourseLink and HydroNode features.

This Getting Started Guide focuses solely on using the product in Geography Markup Language (GML) format.

For guidance on using the product in GeoPackage or vector tiles formats, please see either the Getting Started with GeoPackage guide or the Getting Started with Vector Tiles guide.

Index

This guide includes the following sections:

• Requirements for using the data

• Structure of the supplied data

• Loading GML data into a GIS

• Creating a water network using ESRI software