Water Framework Directive (WFD) River Waterbody Catchments Cycle 1
Dalgylchoedd Cyrff Dŵr Afonol y Gyfarwyddeb Fframwaith Dŵr – Cylchred 1
river catchments.LYR
The 'WFD River Waterbody Catchments' are a polygon Shapefile dataset collated as defined for the implementation of the Water Framework Directive. Catchments are defined as an area of land from which all surface run-off flows through a series of streams, rivers and, possibly, lakes to a particular point in the water course such as a river confluence. Delineation of the river catchment boundaries primarily utilised the CEH Flow Grid hydrological model run with CEH Integrated Hydrological Digital Terrain Model (IHDTM) data so as to determine water drainage into river stretches. Upstream catchment size was calculated within an ESRI GIS environment using the extension Arc Hydro.
dataset
http://lle.gov.wales/catalogue/item/WaterFrameworkDirectiveWFDRiverWaterbodyCatchmentsCycle1
name: Data Download and Web Services
http://lle.gov.wales/services/wms/nrw?
name: Web Mapping Service
119133
https://naturalresources.wales
eng
OGP
urn:ogc:def:crs:EPSG::BNG
inlandWaters
Area management/restriction/regulation zones and reporting units
publication
2020-07-17
-5.77774100
-2.60886500
53.51306700
51.24082900
publication
2020-07-17
Wales (WLS)
2008-01-01
2013-12-31
publication
2013-12-31
notPlanned
Delineation of the river catchment boundaries primarily utilised the CEH Flow Grid hydrological model run with CEH Integrated Hydrological Digital Terrain Model (IHDTM) data so as to determine water drainage into river stretches. Upstream catchment size was calculated within an ESRI GIS environment using the extension Arc Hydro.
© CNC/NRW. Some features of this information are based on digital spatial data licensed from the Centre for Ecology & Hydrology © NERC (CEH). Contains OS data © Crown copyright and database right. Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose. Attribution Statement: Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Some features of this information are based on digital spatial data licensed from the Centre for Ecology & Hydrology © NERC (CEH). Contains OS data © Crown copyright and database right 2015
This data is jointly owned by NRW and CEH There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Natural Resources Wales (NRW)
0300 065 3000
enquiries@naturalresourceswales.gov.uk
owner
Natural Resources Wales (NRW)
0300 065 3000
enquiries@naturalresourceswales.gov.uk
originator
Natural Resources Wales (NRW)
0300 065 3000
enquiries@naturalresourceswales.gov.uk
pointOfContact
2020-07-10