Coastal Water Quality 2018-2020
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                    | Theme | Environment | 
|---|---|
| Date released | 2021-07-09 | 
| Date updated | 2023-07-28 | 
| Dataset conforms to these standards | The INSPIRE Directive or INSPIRE lays down a general framework for a Spatial Data Infrastructure (SDI) for the purposes of European Community environmental policies and policies or activities which may have an impact on the environment. | 
| Rights notes | {"no limitations",https://creativecommons.org/licenses/by/4.0/,license} | 
| Update frequency | Other | 
| Language | English | 
| Landing page | https://gis.epa.ie/geoserver/EPA/ows?service=WFS&version=1.0.0&request=GetFeature&typeName=EPA:WFD_CoastalWaterQuality_20182020&maxFeatures=50&outputFormat=application%2Fjson | 
| Geographic coverage in GeoJSON format | {"type":"Polygon","coordinates":[[[-10.47472, 51.44555],[-10.47472, 55.37999], [-6.01306, 55.37999], [-6.01306, 51.44555], [-10.47472, 51.44555]]]} | 
| Spatial Reference Systems (SRS) | TM65 / Irish Grid (EPSG:29902) | 
| Vertical Extent | {"verticalDomainName": "EPSG Projection 5731 - Malin Head height", "minVerticalExtent": "0", "maxVerticalExtent": "1014"} | 
| Provenance information | The assessment of the trophic status of estuarine and coastal waters around Ireland is mainly based on the analysis of data collected by the EPA between 2018-2020. Additional data from the Marine Institute’s annual winter nutrient monitoring in the western Irish Sea and eastern Celtic Sea are also included. A Trophic Status Assessment Scheme (TSAS) for the classification of these waters was developed. Both dissolved inorganic nitrogen (DIN) and ortho-phosphate (MRP) levels are assessed in summer and winter, chlorophyll data are assessed using a median and 90 percentile approach and oxygen conditions are assessed both in respect of deoxygenation and supersaturation. The Water bodies are then assigned a status of Eutrophic, Potentially Eutrophic, Intermediate Status or Unpolluted. The data was then attributed onto marine waterbody geometry. | 
| Period of time covered (begin) | 2010-01-01 | 
| Period of time covered (end) | 2010-01-01 | 
| High Value Dataset (HVD) | No | 

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