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OS MasterMap Networks - Water Layer-Alpha

colour image of water links over topography

OS MasterMap Networks - Water Layer is the new detailed network map of Great Britain's watercourse. Currently this is an alpha dataset with Scotland only coverage.

It has been created to a single consistent specification and a maintained standard.

It is fully interoperable with all existing layers of OS MasterMap and enables a new generation of analysis, policy development and environmental reporting.

Features and benefits

image of coloured cogs

  • Enables consistency in nationwide water environmental reporting
  • Enables quick and accurate assessment of downstream risk
  • Allows easy inclusion of flood defence asset location in assessments
  • Interoperable with other OS MasterMap layers for further analysis

 

Suggested uses

image of coloured figures inf front of grey cogs

  • Flood risk analysis
  • Environment analysis
  • River network management
  • Plan and build analysis

 

 

Technical details

Format: GML 3.1, ESRI Shapefile, MapInfo TAB

Data structure: Vector- toplogically structured link and node network

Attributes: Watercourse name, flow direction, TOID reference, SEPA catchment name and ID.

Scale: 1:1250 - 1:10 000

Update frequency: Alpha dataset unmaintained

Supply: DVD,

Coverage: defined Scotland extent only for Alpha launch 

Useful Links

User Guide

Technical specification

Alpha release note and coverage

One Scotland members:
Email OSMA Helpdesk to request disc

All others interested:
Email Customer Services to request disc

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For general enquiries, complaints, feedback or suggestions, email: customerservices@ordnancesurvey.co.uk or call us on 08456 05 05 05