All Wales Hydrological Analysis Flow Accumulation Raster
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 Flow Accumulation Raster is a count for each cell a count of how many other cells flow to it.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS123368
- Laith Metadata
- English
- Datganiad
-
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
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Geographic Information System
(
)
- Math
-
ESRI Feature Class
-
Geographic Information System
(
)
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Cydymffurfiad
- 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
- Eglurhad
-
This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Gradd
- false
- Datganiad
-
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
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
-
NRW Thesaurus
-
- hydrometry
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2026-03-04
System Cyfeirio Gofodol
- Cod
- NONE
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
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.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© 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
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313233333638 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2026-06-25T13:48:07.929Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0