Name: Dune_Slack_Likely_Locations

Display Field: site

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Is View: true

Is Updatable View: true

Source Schema Changes Allowed: true

Sources

Description: This product shows the likely locations and boundaries of dune slacks for sites around England. A dune slack is a depression in coastal dune system. It is based upon a morphological definition of dune slacks and uses LIDAR Digital Terrain Model (DTM) data and a derived slope model. Each slack has height statistics calculated for it. The data are provided in Polygon Shapefile format. Dune slack boundaries based upon phytological associations may differ to this product. It is particularly important to remember where sand dunes are covered by large extents of scrub or woodland, as through the use of LIDAR DTM, slacks can be identified under scrub and tree vegetation; however this also gives the product unique advantages in considering vegetation recovery after scrub or tree clearance. Geographical coverage is incomplete because of limits in data available. It includes those areas where the Environment Agency, Natural England and the Regional Coastal Monitoring Programme have carried out sufficient aerial surveys.

Copyright Text: Environment Agency

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON

Use Standardized Queries: True

Extent:

XMin: 244590
YMin: 78669
XMax: 650416.9987
YMax: 648749.8522
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: objectid

Unique ID Field:

Name : objectid

IsSystemMaintained : True

Global ID Field:

Type ID Field:

Fields:

• objectid (type: esriFieldTypeOID, alias: FID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• site (type: esriFieldTypeString, alias: site, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
• lidar_date (type: esriFieldTypeString, alias: lidar_date, SQL Type: sqlTypeOther, length: 12, nullable: true, editable: true)
• analysisyr (type: esriFieldTypeString, alias: analysisyr, SQL Type: sqlTypeOther, length: 7, nullable: true, editable: true)
• version (type: esriFieldTypeSmallInteger, alias: version, SQL Type: sqlTypeOther, nullable: true, editable: true)
• min_ (type: esriFieldTypeDouble, alias: min, SQL Type: sqlTypeOther, nullable: true, editable: true)
• max_ (type: esriFieldTypeDouble, alias: max, SQL Type: sqlTypeOther, nullable: true, editable: true)
• mean (type: esriFieldTypeDouble, alias: mean, SQL Type: sqlTypeOther, nullable: true, editable: true)
• range (type: esriFieldTypeDouble, alias: range, SQL Type: sqlTypeOther, nullable: true, editable: true)
• area_msq (type: esriFieldTypeDouble, alias: area_msq, SQL Type: sqlTypeOther, nullable: true, editable: true)
• lidaryear (type: esriFieldTypeInteger, alias: lidaryear, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Name: Dune_Slack_Likely_Locations
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 5/29/2024 9:47:40 PM

Schema Last Edit Date: 5/29/2024 9:47:40 PM

Data Last Edit Date: 5/29/2024 9:47:40 PM

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