Metadata Document

ISO-19139 Metadata

Service Identification Information:

Citation:
Title:  All water body nested catchments

Reference date - publication:  2022-01-24

Presentation format:  mapDigital

Unique resource identifier:
Value: Baseline water body intercatchments

Party responsible for the resource - pointOfContact: 
Organization's name: Scottish Environment Protection Agency

Contact information:
Phone:
Voice: 03000 99 66 99
Address:
Delivery point: Angus Smith Building, Unit 6, 4 Parklands Avenue, Eurocentral
City: Holytown
Administrative area: North Lanarkshire
Postal code: ML1 4WQ
Country:  GB
e-mail address: foi@sepa.org.uk
Hours of service: 9am - 5pm
Theme keywords:
Keywords:  Hydrography

Thesaurus name:
Title:  GEMET - INSPIRE themes, version 1.0

Reference date - publication:  2008-06-01

Descriptive keywords:
Keywords:  Downloadable Data

Thesaurus name: ArcGIS Content Type
Abstract:  Catchments for all freshwater surface water bodies are required for a number of WFD related projects, including an assessment of diffuse pollution to each waterbody and the assignment of existing monitoring points to water bodies. The nested catchments were created and quality checked by SEPA. Catchments are available for both baseline surface water bodies (rivers with a catchment >= 10 km² & lochs with a surface area >= 0.5 km²) and small water bodies. The catchments overlap in all cases except where a single water body drains directly to the coast and not into a downstream freshwater water body.

Purpose: Catchments for all freshwater surface water bodies are required for a number of WFD related projects, including an assessment of diffuse pollution to each waterbody and the assignment of existing monitoring points to water bodies. The nested catchments were created and quality checked by SEPA. Catchments are available for both baseline surface water bodies (rivers with a catchment greater than or equal to 10 km² & lochs with a surface area greater than or equal to 0.5 km²) and small water bodies. The catchments overlap in all cases except where a single water body drains directly to the coast and not into a downstream freshwater water body.

Service type: 
Service coupled resource:
Operation name: River and loch waterbody nested catchments

Status:  onGoing
Maintenance:
Update frequency:  asNeeded


Resource constraints:
Constraints:
Limitations of use: IHDTM Inflow grid derived catchment boundaries available free of charge under the terms of the current Open Government Licence (OGL) (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/) as per SEPA's licence with CEH (https://geospatial.cloudnet.sepa.org.uk/portal/sharing/rest/content/items/27a50934153f4bf3b60d2b759a627373/data). Required Acknowledgements: © Scottish Environment Protection Agency. Some features of this information are based on digital spatial data licensed from the Centre for Ecology and Hydrology Copyright NERC (CEH). Contains OS data Copyright Crown copyright [and database right].

Resource constraints:
Legal constraints:
Access constraints:  copyright

Limitations of use: © Scottish Environment Protection Agency

Resource constraints:
Legal constraints:
Access constraints:  otherRestrictions

Other constraints: Other Constraints

Resource constraints:
Legal constraints:
Use constraints:  otherRestrictions

Other constraints: Other Constraints

Extent:
Geographic element - Geographic description:
Extent contains the resource: false
Geographic identifier:
Value: Scotland
2007-01-11T00:00:00 2022-01-24T00:00:00
Extent:
Geographic element - Bounding rectangle:
Extent contains the resource: true
West longitude: -8.120326
East longitude: -0.726941
North latitude: 60.825468
South latitude: 54.591401
Credits: © Scottish Environment Protection Agency. Some features of this information are based on digital spatial data licensed from the Centre for Ecology and Hydrology Copyright NERC (CEH). Contains OS data Copyright Crown copyright [and database right].

Point of contact - pointOfContact: 
Organization's name: Scottish Environment Protection Agency

Contact information:
Phone:
Voice: 03000 99 66 99
Address:
Delivery point: Angus Smith Building, Unit 6, 4 Parklands Avenue, Eurocentral
City: Holytown
Administrative area: North Lanarkshire
Postal code: ML1 4WQ
Country:  GB
e-mail address: foi@sepa.org.uk
Hours of service: 9am - 5pm

Spatial Representation - Vector:

Level of topology for this dataset:  geometryOnly
Geometric objects:
Object type:  composite

Reference System Information:

Reference system identifier:
Value: British National Grid
Code space: EPSG
Version: 6.3(3.0.1)

Data Quality Information:

Scope of quality information:
Level of the data:dataset

Lineage:
Lineage statement: Loch water body nested catchments: These were selected from the data produced by the UK Lakes database project where possible or created from scratch. There are 333 baseline loch catchments (for 334 lochs as Loch Lomond is split into 2 waterbodies but has only 1 catchment) and the remainder are for non baseline loch catchments, a total of 553 catchments. River water body nested catchments: These were selected from the nested catchment dataset where available, or otherwise created from scratch. There are 2384 baseline and 788 non-baseline river waterbodies. There are 27 canal waterbodies for which no catchment can be created. In total there are 2357 baseline river catchments (2384 - 27 canals) and 761 non baseline river waterbody catchments, a total of 3172 catchments. 11/8/11 Non-connected multipart features (mainly single cell polygons) allocated to correct catchment. Process involved generating the area of the minimum bounding envelope of each intercatchment, then converting any multipart features to single part and generating their minimum bounding envelope. A comparison of the area of the multipart feature with the maximum area of the corresponding single part feature highlights those intercatchments with distant none connected parts. These were manually allocated to the correct catchment. Each time the generation model is run, portions of catchments are identified as being inaccurately generated by the automated process (i.e. Panorama-based grids) compared to what physically exists. In these cases there is then manual clipping or extending of the model-generated catchments in order to match them to what’s on the ground (DRN, detailed DRN, contours, Terrain 5 etc).

Source data:
Level of the source data: Water body nested catchments.

Dataset's scale:
Scale denominator: 50000
Source citation:
Title:  Water body nested catchments

Reference date - publication:  2007-11-29

Data quality report - Completeness commission:
Conformance test results:
Test passed: true
Meaning of the result: All attributes checked and populated.

Description of conformance requirements:
Title:  COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Reference date - publication:  2010-12-08

Data quality report - Domain consistency:
Conformance test results:
Test passed: true
Meaning of the result: Domain consistent.

Description of conformance requirements:
Title:  COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Reference date - publication:  2010-12-08

Distribution Information:

Format:
Format name: Enterprise Geodatabase Feature Class
Format version: 10

Transfer options:

Metadata Information:

Metadata language:  eng
Metadata character set:  utf8


Last update:  2025-02-13
Maintenance:
Update frequency:  asNeeded



Metadata contact - pointOfContact: 
Organization's name: Scottish Environment Protection Agency

Contact information:
Phone:
Voice: 03000 99 66 99
Address:
Delivery point: Angus Smith Building, Unit 6, 4 Parklands Avenue, Eurocentral
City: Holytown
Administrative area: North Lanarkshire
Postal code: ML1 4WQ
Country:  GB
e-mail address: foi@sepa.org.uk
Hours of service: 9am - 5pm
Scope of the data described by the metadata:  dataset
Scope name: dataset

Name of the metadata standard used: INSPIRE Metadata Implementing Rules: Technical Guidelines based on EN ISO 19115 and EN ISO 19119
Version of the metadata standard: V. 1.2

Metadata identifier: 844D5C95-2B34-449E-B3F9-58FD0CCD416E