Modelled Fluvial Flood Depth Data for England, 2004 Generalised Model

Modelled fluvial flood depth data was created for the 1% annual chance of flooding situation in 2004 using the JFlow hydrodynamic model on a 5x5m grid. The Environment Agency produced this data to fill gaps in detailed local modelling for spatial planning flood zone definitions. The data covers the whole of England, but this specific download is for the Ordnance Survey National Grid reference TF.

Use Cases

• Assessing broad-scale flood risk for spatial planning based on modelled flood depth data.
• Identifying flood zone extents at a catchment scale based on the 1% annual chance flood event.
• Supporting shoreline management plan development based on generalised flood depth modelling.

Strengths

• Data modelled on a 5x5m grid resolution.
• Coverage for the whole of England.
• Created using a two-dimensional hydrodynamic model (JFlow).

Limitations

• The data has not been updated since 2004.
• Not suitable for identifying flooding at individual properties or for detailed decision making.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Environment Agency

Collection Method

Two-dimensional hydrodynamic modelling (JFlow).

Time Range

2004

Geography

England (specific tile for grid reference TF).