Nutrient Review - Groundwater Interpolated Future and Current Data

Future (2031) and current (2019) predicted groundwater quality for phosphate and nitrate to understand spatial patterns in the groundwater dataset and predict phosphate and nitrate concentrations at unmonitored locations across Wales

Identifier: NRW_DS125609

Alternative Title

Groundwater Quality Interpolation.lyr

Metadata Language: English

Lineage: The current (2019) predicted groundwater quality layer for nitrates and phosphates was made by spatial interpolation of the current (2019) predicted groundwater 95th percentile nitrate and phosphate concentration for each of the scoped in sites. These values were estimates made using one of these statistical approaches based on the amount of data available, and range of years this data was across: - Weibull for the 2017-2019 data; a bootstrapped Theil – Sen using a 1.16 adjustment of the mean concentration for all data; a uniform value based on a 1.16 adjustment of the mean concentration of all data. The future (2031) predicted groundwater quality layer for nitrates and phosphates was made by spatial interpolation of the future (2031) predicted groundwater 95th percentile nitrate and phosphate concentration for each of the scoped in sites. These values were estimates made using one of these statistical approaches based on the amount of data available, and range of years this data was across: - Weibull for the 2017-2019 data followed by a bootstrapped Theil – Sen for all data; a bootstrapped Theil – Sen using a 1.16 adjustment of the mean concentration for all data; a uniform value based on a 1.16 adjustment of the mean concentration of all data.

Topic category

Environment

Owner

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Originator

Extent

Geographic Extent: Wales (WLS)

Format Type and Description

Geographic Information System Geographic Information System ()

Specification

ESRI Feature Class

Data quality

Quality Scope: Dataset

Conformity: 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
Explanation
Degree: false

Lineage: The current (2019) predicted groundwater quality layer for nitrates and phosphates was made by spatial interpolation of the current (2019) predicted groundwater 95th percentile nitrate and phosphate concentration for each of the scoped in sites. These values were estimates made using one of these statistical approaches based on the amount of data available, and range of years this data was across: - Weibull for the 2017-2019 data; a bootstrapped Theil – Sen using a 1.16 adjustment of the mean concentration for all data; a uniform value based on a 1.16 adjustment of the mean concentration of all data. The future (2031) predicted groundwater quality layer for nitrates and phosphates was made by spatial interpolation of the future (2031) predicted groundwater 95th percentile nitrate and phosphate concentration for each of the scoped in sites. These values were estimates made using one of these statistical approaches based on the amount of data available, and range of years this data was across: - Weibull for the 2017-2019 data followed by a bootstrapped Theil – Sen for all data; a bootstrapped Theil – Sen using a 1.16 adjustment of the mean concentration for all data; a uniform value based on a 1.16 adjustment of the mean concentration of all data.

Keywords

GEMET - INSPIRE themes, version 1.0

Hydrography

Type: Theme

Citation

Date (Publication): 2008-06-01

Code: geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Keywords

NRW Thesaurus

phosphates
phosphorus
nitrates (nitrogen)
nitrate sensitive areas
Nutrient distribution
nutrients
groundwater pollution
groundwater

Type: Theme

Citation

Date (Publication): 2023-12-31

Code: geonetwork.thesaurus.local.theme.converted_nrw-keywords

Code: British National Grid (EPSG::27700)

Content Information

NRW Profile

Custom Elements

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

File Identifier: 4f4c4942-4343-5764-6473-313235363039 XML

Metadata Language: English

Parent Identifier: Nutrients Review 2023
NRW_DS125601

Resource type: Dataset

Metadata Date: 2024-05-30T15:37:47.352Z

Metadata Standard Name: NRW

Metadata Standard Version: 1.0

pointOfContact

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Publishing Body

Access the portal

Full access to the portal and metadata.

Nutrient Review - Groundwater Interpolated Future and Current Data

Identification

Extent

Extent

Distribution

Quality

Data quality

Keywords

Keywords

Citation

Keywords

Citation

Spatial Reference System

Content

Content Information

NRW Profile

Custom Elements

Constraints

Constraints

Limitations on Public Access and Use

Access Constraints Directive

Access Constraints Text

Use Constraints

Metadata

Metadata

Publishing Body