Nutrient Review - Lake Mean Totals and Monitoring Locations
Lake mean total nitrogen and phosphate concentrations for monitoring sites between 2014 and 2019.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS125610
- Alternative Title
-
- Lake Monitoring Locations.lyr
- Metadata Language
- English
- Lineage
-
Monitoring points were compared to the monitoring points used for WFD and SAC compliance assessments to get an initial list linking lake sample points to individual lakes. Monitoring points within the dataset were then spatially joined to lakes in the CEH lakes layer. An initial distance buffer of 100 m was applied to monitoring points within this proximity distance of lakes, assumed to be associated with that lake catchment. Sites outside of this range were excluded. Monitoring sampling point types were assessed to determine whether they should be included within the assessment. Monitoring points on rivers and those draining away from lakes were excluded from the assessment. The total phosphorus and nitrate data was processed using a bespoke Python script to determine lake mean concentrations between 2014 and 2019 for each monitoring location. Monitoring data for the years 2014-2019 was selected for this assessment as a continuation from the years used for the previous assessment.
- Topic category
-
- Environment
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
-
Monitoring points were compared to the monitoring points used for WFD and SAC compliance assessments to get an initial list linking lake sample points to individual lakes. Monitoring points within the dataset were then spatially joined to lakes in the CEH lakes layer. An initial distance buffer of 100 m was applied to monitoring points within this proximity distance of lakes, assumed to be associated with that lake catchment. Sites outside of this range were excluded. Monitoring sampling point types were assessed to determine whether they should be included within the assessment. Monitoring points on rivers and those draining away from lakes were excluded from the assessment. The total phosphorus and nitrate data was processed using a bespoke Python script to determine lake mean concentrations between 2014 and 2019 for each monitoring location. Monitoring data for the years 2014-2019 was selected for this assessment as a continuation from the years used for the previous assessment.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
-
- lake pollution
- Lakes (Limnology)
- nutrient load
- nutrients
- nitrates (nitrogen)
- Nitrate directive
- phosphates
- Phosphorus Targets
- phosphorus
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Spatial Reference System
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
-
Restriction on this data have not been fully determined, however a preliminary assessment indicate part of this dataset is sensitive, and access may be restricted under relevant legislation. NRW may NOT release, publish or disseminate the sensitive data
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
-
© CNC/NRW NRW does NOT grant permission to third parties to re-use or disseminate the full dataset. Subject to a full assessment, a redacted version of the data may be re-used under provision and in line with the terms of a NRW licence.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313235363130 XML
- Metadata Language
- English
- Parent Identifier
-
Nutrients Review 2023
NRW_DS125601
- Resource type
- Dataset
- Metadata Date
- 2024-05-30T15:37:48.888Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0