175
results found
- Published by:
- Natural Resources Wales
- Last updated:
- 22 June 2023
The Historic UK Water Quality Sampling Harmonised Monitoring Scheme (HMS) data contains statistics for a series of water quality sampling sites including annual means, maximum and minimum...
- Published by:
- Natural Resources Wales
- Last updated:
- 22 June 2023
Water temperature data is collected for different reasons and in different locations. Time series of surface water temperatures can provide indicators of climate change and associated...
- Published by:
- Natural Resources Wales
- Last updated:
- 22 June 2023
The River Quality Objectives (RQO) classification was used for planning water quality improvements until 2006 when the scheme ended. The national RQO classification scheme ceased at the end...
- Published by:
- Natural Resources Wales
- Last updated:
- 22 June 2023
This dataset has been discontinued. Please see the datasets - Large Raised Reservoir register (Locations and undertakers) and Large Raised Reservoir (Registered information) which have...
- Availability:
-
Not released
- Published by:
- Natural Resources Wales
- Last updated:
- 17 October 2016
The surface water flood maps give an indication of the broad areas likely to be at risk of surface water flooding. This includes flooding that takes place from the surface runoff generated...
- Published by:
- Natural Resources Wales
- Last updated:
- 22 June 2023
This is a national assessment of flood risk for Wales produced using local expertise. The dataset shows the chance of flooding from rivers and/or the sea, based on cells of 50 m. Each cell...
- Published by:
- Natural Resources Wales
- Last updated:
- 22 June 2023
Nitrate Vulnerable Zones (NVZs) were areas within Wales that contain surface water or groundwater that is susceptible to nitrate pollution from agricultural activities. They were designated...
- Published by:
- Natural Resources Wales
- Last updated:
- 13 June 2023
Source Protection Zones [Merged] have been created as public facing boundaries where individual groundwater bodies within Source Protection Zones (SPZ) have been dissolved so only the outer...
- Published by:
- Natural Resources Wales
- Last updated:
- 19 May 2023
This dataset shows the boundary of Wales' 19 Public Service Boards (PSB). The PSB improve joint working across all public services in each local authority area in Wales. Each board must...
- Published by:
- Natural Resources Wales
- Last updated:
- 19 May 2023
Light Detection and Ranging (LIDAR) is an airborne mapping technique, which uses a laser to measure the distance between the aircraft and the ground. Up to 100,000 measurements per second...
- Published by:
- Natural Resources Wales
- Last updated:
- 12 May 2023
This dataset shows the boundaries and baseline classification, undertaken in 2021, for The Water Framework Directive (WFD) Cycle 3. It is an update in classification for all water bodies in...
- Published by:
- Natural Resources Wales
- Last updated:
- 12 May 2023
This dataset contains details of Large Raised Reservoirs.
Natural Resources Wales (NRW) collects and maintains data on reservoirs designed or capable of holding more than 10,000 cubic metres...
- Published by:
- Natural Resources Wales
- Last updated:
- 12 May 2023
This dataset contains details of Large Raised Reservoirs in Wales.
Natural Resources Wales (NRW) collects and maintains data on all reservoirs designed or capable of holding more than 10,000...
- Published by:
- Natural Resources Wales
- Last updated:
- 12 May 2023
Permits issued for Hydropower Generation sites. NRW assesses and licences hydropower schemes for the water they abstract and to protect the local and wider environment; this may require...
- Published by:
- Natural Resources Wales
- Last updated:
- 12 May 2023
A waste management licence is a legal document issued under the Environmental Protection Act 1990. A licence authorises the treatment, keeping or disposal of waste in or on the land. Once we...
- Published by:
- Natural Resources Wales
- Last updated:
- 11 April 2023
Dataset showing the location of firebreaks created and managed by Natural Resources Wales operational staff in the Welsh Government Woodland Estate. The data covers the NRW South Central...
- Published by:
- Natural Resources Wales
- Last updated:
- 31 March 2023
Special Landscape Areas (SLAs) are a non-statutory designation applied by a local authority to define areas of high landscape importance within their administrative boundary. This data...
- Published by:
- Natural Resources Wales
- Last updated:
- 21 March 2023
There is a growing emphasis on ecological connectivity in planning for effective biodiversity conservation and building ecosystem resilience. A major part of this is to counteract the...
- Published by:
- Natural Resources Wales
- Last updated:
- 07 March 2023
The Cycle 2 Flood Risk Areas are those communities in Wales where most significant flood risks exist across all sources of flood risk. They were identified for the purpose of the second...
- Published by:
- Natural Resources Wales
- Last updated:
- 07 March 2023
This layer identifies areas of Ancient Woodland and Parkland from which NRW hold recent, auditable records of N-sensitive lichens. Not all lichens are sensitive to increased ammonia: the 62...