Coal Outcrops Metadata
Published 9 October 2014
© Crown copyright 2014
This publication is licensed under the terms of the Open Government Licence v3.0 except where otherwise stated. To view this licence, visit nationalarchives.gov.uk/doc/open-government-licence/version/3 or write to the Information Policy Team, The National Archives, Kew, London TW9 4DU, or email: psi@nationalarchives.gov.uk.
Where we have identified any third party copyright information you will need to obtain permission from the copyright holders concerned.
This publication is available at https://www.gov.uk/government/publications/coal-mining-data-outcrops/coal-outcrops-metadata
1. Description
1.1 Keywords
Coal Outcrops, Coal, Mining, Data, Mining Report, Ground Stability
1.2 Abstract
Coal outcrops illustrate a location where a workable coal seam is present at or close to the surface.
1.3 Purpose
Mining and geographical data held on the National Coal Mining Database.
1.4 Supplementary Information
This layer identifies where an underground coal seam reaches rockhead, indicating coal that may have been worked at some time in the past. Whilst this dataset highlights areas of probable underground workings at shallow depth, it may also include areas where the un-viable seams of coal remain. This dataset contains a buffer of 50m on the dip side of the outcrops position as held by the Coal Authority.
The National Coal Mining Database, which is based on the records held at The Coal Authority offices in Mansfield, Nottinghamshire, is updated on a regular basis. This dataset has been extracted from this dynamic database on the date stated below and therefore represents a snapshot in time.
1.5 Status of the data
Extract of data from the National Coal Mining Database
Data update frequency: As needed
1.6 Time period for which the data is relevant
Date and time: 14/08/2014
Description: Dataset export from the National Coal Mining Database
1.7 Publication Information
Who created the data: The Coal Authority
Date and time: 26/09/2014
1.8 Data storage and access information
File name: CoalOutcrops
Type of data: vector digital data
Data processing environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 10.0 (Build 2800)
Data processing environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 10.0(Build 2800)
1.9 Constraints on accessing and using the data
Access and use constraints: This data, service or application is provided free of charge under the terms and conditions of the Open Government Licence. The full terms and conditions of the Open Government Licence can be viewed here
If you need any additional advice please contact the Customer Service Team on +44 (0) 345 762 6848 or here.
1.10 Details about this document
Contents last updated: 26/09/2014
1.11 Who completed this document
Louise Tipper, Information Management, The Coal Authority, 200 Lichfield Lane, Mansfield, Nottinghamshire, NG18 4RG, England. Telephone +44(0) 345 762 6848
1.12 Standards used to create this document
Standard name: FGDC Content Standards for Digital Geospatial Metadata
Standard version: FGDC-STD-001-1998
Time convention used in this document: local time
Metadata profiles defining additional information
2. Spatial
2.1 Horizontal coordinate system
Projected coordinate system name: British_National_Grid
Geographic coordinate system name: GCS_OSGB_1936
2.2 Details
Map Projection Name: Transverse Mercator
Scale Factor at Central Meridian: 0.999601
Longitude of Central Meridian: -2.000000
Latitude of Projection Origin: 49.000000
False Easting: 400000.000000
False Northing: -100000.000000
2.3 Planar Coordinate Information
Planar Distance Units: meters
Coordinate Encoding Method: coordinate pair
2.4 Coordinate Representation
Abscissa Resolution: 0.000000
Ordinate Resolution: 0.000000
2.5 Geodetic Model
Horizontal Datum Name: D_OSGB_1936
Ellipsoid Name: Airy_1830
Semi-major Axis: 6377563.396000
Denominator of Flattening Ratio: 299.324965
2.6 Altitude System Definition
Resolution: 0.000100
Encoding Method: Explicit elevation coordinate included with horizontal coordinates
2.7 Bounding coordinates
Horizontal
| In decimal degrees | In projected or local coordinates |
|---|---|
| West: -2.093747 | Left: 393777.628188 |
| East: -2.079946 | Right: 394692.250000 |
| North: 53.469228 | Top: 396974.553675 |
| South: 53.457808 | Bottom: 395705.349900 |
Vertical
Minimum elevation: 0.000000 Maximum elevation: 0.000000
2.8 CoalOutcrops
ESRI feature type: Simple
Geometry type: Polygon
Topology: FALSE
Feature count: 89270
Spatial Index: FALSE
Linear referencing: TRUE
2.9 SDTS description
Feature class: SDTS feature type, feature count Workable Outcrops: G-polygon, 89270
3. Attributes
Details for Coal Outcrops
Type of object: Feature Class Number of records: 89270
3.1 FID
Alias: FID
Data type: OID
Width: 4 Precision: 0 Scale: 0
Definition: Internal feature number. Definition Source: ESRI
3.2 Shape
Alias: Shape
Data type: Geometry
Width: 0
Precision: 0
Scale: 0
Definition: Feature geometry. Definition Source: ESRI
3.3 OBJECTID
Alias: OBJECTID
Data type: Number
Width: 9
3.4 FEATURE_TYPE
Alias: FEATURE_TYPE
Data type: String
Definition: The coal mining feature type
Width: 50
3.5 HYPERLINK
Alias: HYPERLINK
Data type: String
Definition: Web URL for further data information
Width: 50
3.6 SHAPE_Length
Alias: SHAPE_Length
Data type: Float
Width: 19
Number of decimals: 11
3.7 SHAPE_Area
Alias: SHAPE_Area
Data type: Float
Width: 19
Number of decimals: 11
Definition: Area of feature in internal units squared.
Definition Source: ESRI