River Asset Baseline for Ecosystem Service Mapping in England

Environment Agency data segments England's rivers into environmentally homogenous reaches for natural capital assessment. The network is derived from points every 500m, which defines the resolution limit for features like lakes. This river asset baseline supports an England-wide geospatial evidence base for environmental planning and delivery.

Use Cases

• Map riverine natural capital condition indicators based on segmented river reaches.
• Assess ecosystem service capacity for environmental planning based on the geospatial evidence base.
• Analyze river network segmentation and its limitations for modeling studies based on the described 500m resolution and potential snapping errors.

Strengths

• Provides a segmented river network for all of England.
• Based on a network of points every 500m, establishing a defined spatial resolution.
• Produced by the authoritative Environment Agency.

Limitations

• The 500m point network is the limit of resolution, impacting the consideration of lakes and reservoirs.
• Potential snapping errors exist around river network loops and braids.
• Artificial break points may have been generated where a river runs close to a Water Framework Directive boundary.

Provenance

Source

Environment Agency

Collection Method

Derived from segmenting the Open Rivers Network into environmentally homogenous reaches, with online lakes and culverts removed.

Freshness

Last updated 2026-05-15 13:11:17.495530

Geography

England