Name: Map_for_Andy

Display Field: WB_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: Ordnance Survey (OS) make an open dataset of rivers available as OS Open Rivers vector polylines under an Open Government Licence, derived from the detailed OS MasterMap Water Layer. Although widely used by the practitioner and the academic community it is not fully topologically connected, limiting its suitability for several uses and research applications such as linear referencing and reach analysis, hydro-ecological analysis, water quality monitoring, restoration and remediation prioritisation, connectivity planning and integration in decision support tools. The entire river network for Great Britain was corrected for topological errors and attributed with additional data. The network consisted of 183,349 polylines representing 147,387 kilometres.To ensure the network was a topologically correct river network, canals and channels that broke the dendritic connectivity of the river network were removed. The network was further simplified by removing loops. Small unconnected sections that were within the great catchment they sat within were also deleted out.With the topological errors removed, the network was passed through the river network processing tool RivEX to create added-value attribution. Encoding the network with these pre-computed values allows for rapidly analyse of the network alongside site data (points snapped to the network).Further details on edits made to the network and the attribute fields added are recorded in the lineage and fields section of the metadata.

Copyright Text: Ordnance Survey, The River Restoration Centre, GeoData (University of Southampton)

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 325815.58
YMin: 77019.3499999996
XMax: 637006.25
YMax: 479484.45
Spatial Reference: 27700 (27700)

Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: FID

Unique ID Field:

Name : FID

IsSystemMaintained : True

Global ID Field:

Type ID Field: FlowType

Fields:

• FID (type: esriFieldTypeOID, alias: FID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• WB_ID (type: esriFieldTypeString, alias: WB_ID, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• WB_NAME (type: esriFieldTypeString, alias: WB_NAME, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• River_Name (type: esriFieldTypeString, alias: River_Name, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• name1 (type: esriFieldTypeString, alias: name1, SQL Type: sqlTypeOther, length: 250, nullable: true, editable: true)
• FlowType (type: esriFieldTypeString, alias: FlowType, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• hydromorph (type: esriFieldTypeString, alias: hydromorph, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• MapSource (type: esriFieldTypeString, alias: MapSource, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• Local_data (type: esriFieldTypeString, alias: Local_data, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• InfoSource (type: esriFieldTypeString, alias: InfoSource, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• QA_Status (type: esriFieldTypeString, alias: QA_Status, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• Shape_Leng (type: esriFieldTypeDouble, alias: Shape_Leng, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Reach_ID (type: esriFieldTypeDouble, alias: Reach_ID, SQL Type: sqlTypeOther, nullable: true, editable: true)
• ObjectID_1 (type: esriFieldTypeInteger, alias: ObjectID_1, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Types:

ID: Near Perennial
Name: Near Perennial
Domains:

Templates:

Name: Near Perennial
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:

Attributes:

• FlowType: Near Perennial

---

ID: Occasionally wet
Name: Occasionally wet
Domains:

Templates:

Name: Occasionally wet
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:

Attributes:

• FlowType: Occasionally wet

---

ID: Perennial
Name: Perennial
Domains:

Templates:

Name: Perennial
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:

Attributes:

• FlowType: Perennial

---

ID: Winterbourne
Name: Winterbourne
Domains:

Templates:

Name: Winterbourne
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:

Attributes:

• FlowType: Winterbourne

---

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 6/13/2025 6:30:48 AM

Schema Last Edit Date: 6/13/2025 6:30:48 AM

Data Last Edit Date: 6/13/2025 6:30:48 AM

Supported Operations:   Query   Query Pivot   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat