All Wales Hydrological Analysis Catchments
This layer was created to point to rasters used in NRW hydrological analysis tools. They are based upon the flow direction models which were created by the Environment Agency Detailed River Network which subsequently passed to NRW. The All Wales Hydrological Analysis Catchments is generated for each area above a threshold area from the following related datasets: NRW_DS123368 NRW_DS123369 NRW_DS123370 NRW_DS123371
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS123367
- Metadata Language
- English
- Lineage
-
Created as a precursor to the Ordnance Survey Mastermap Water Network. There is a lot of subjectivity in terms to the thresholds used to generate these by-products from the flow direction raster.. It depends on intended use, spatial extent and scale. Changing these variables will alter the number and size of the resulting streams and catchments
- Topic category
-
- Inland waters
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Distribution
- Format Type and Description
-
-
Geographic Information System
Geographic Information System
()
- Specification
-
ESRI Feature Class
-
Geographic Information System
Geographic Information System
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
-
Created as a precursor to the Ordnance Survey Mastermap Water Network. There is a lot of subjectivity in terms to the thresholds used to generate these by-products from the flow direction raster.. It depends on intended use, spatial extent and scale. Changing these variables will alter the number and size of the resulting streams and catchments
Keywords
Keywords
Spatial Reference System
- Code
- NONE
Content
Content Information
NRW Profile
Custom Elements
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
-
Access restrictions on this data have not been determined. It may contain sensitive information and therefore may be restricted under legislation. NRW may provide access to this dataset on request, however NRW may not release, publish or disseminate the data or derived products freely without further assessment.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
-
© CNC/NRW Data may only be re-used externally under provision and in line with the terms of a NRW licence following an assessment of the data.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313233333637 XML
- Metadata Language
- English
- Resource type
- Dataset
- Metadata Date
- 2024-05-30T08:58:28.022Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0