seabed-sediment-classification-irish-waters-wgs84
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| Téama | Timpeallacht |
|---|---|
| Dáta eisithe | 2013-06-20 |
| Dáta nuashonraithe | 2018-09-13 |
| Cloíonn an tacar sonraí leis na caighdeáin seo | 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. |
| Nótaí Cearta | ['Creative Commons Attribution 4.0 International (CC BY 4.0) licence', 'Data that is produced directly by the Geological Survey Ireland (GSI) is free for use under the conditions of Creative Commons Attribution 4.0 International license. https://creativecommons.org/licenses/by/4.0/legalcode\n\nUnder the CC-BY Licence, users must acknowledge the source of the Information in their product or application. \nPlease use this specific attribution statement: "Contains Irish Public Sector Data (Geological Survey) licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence".', 'license', 'Data that is produced directly by the Geological Survey Ireland (GSI) is free for use under the conditions of Creative Commons Attribution 4.0 International license. https://creativecommons.org/licenses/by/4.0/legalcode\n\nUnder the CC-BY Licence, users must acknowledge the source of the Information in their product or application. \nPlease use this specific attribution statement: "Contains Irish Public Sector Data (Geological Survey) licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence".', 'license'] |
| Minicíocht Nuashonraithe | Continuously updated |
| Teanga | English |
| Lamairne | https://gsi.geodata.gov.ie/portal/apps/webappviewer/index.html?id=85b8ecf8832e40cca6d923aa0688f08e |
| Clúdach Geografach i bhformáid GeoJSON | {"type":"Polygon","coordinates":[[[-18.1, 51.5],[-18.1, 57.1], [-5.5, 57.1], [-5.5, 51.5], [-18.1, 51.5]]]} |
| SRS | WGS 84 (EPSG:4326) |
| Méid Ingearach | {"maxVerticalExtent": "-1", "verticalDomainName": "sea level", "minVerticalExtent": "-200"} |
| Eolas Dualfhoinse | 1. Backscatter mosaic was generated at 5 m. 2. Acoustic classes were derived from multibeam backscatter data using an unsupervised image classification method. 3. Groundtruthing data, where available, were used to assign sediment types to the acoustic classes. 4. Rock outcrops were derived from manual interpretation of bathymetric data, LiDAR data and satellite images*. 5. Sediment classes were allocated to areas without MBES coverage by extrapolation of the sediment information obtained from neighbouring samples. 6. Unclassified substrate: areas that cannot be interpreted due to a lack of data (multibeam, sediment samples). The EUNIS habitat classification is a comprehensive pan-European system to facilitate the harmonised description and collection of data across Europe through the use of criteria for habitat identification. It is hierarchical and covers all types of habitat types from natural to artificial, from terrestrial to freshwater and marine. Lower resolution interpretations of INFOMAR data that were provided to the EMODnet Geology and EMODnet Seabed Habitats projects have been integrated into this layer. Areas where there is no multibeam data have either been filled by EUSeaMap (predictive broadscale habitat map) Version 20190426 or have been left as unclassified. The existing sediment classifications have been translated to a scheme that is supported by EUNIS and MSFD Broad Benthic Habitat Type classification systems. This reclassification scheme includes five seabed substrate classes. Four substrate classes are defined on the basis of the modified Folk triangle (mud to sandy mud; sand; coarse sediment; and mixed sediment) and one additional substrate class (rock) was included. The data is stored in an ArcGIS Enterprise geodatabase and was processed using ArcGIS Pro 3.2.1. Pairwise Dissolve was carried out on the data using all attribute fields except the OBJECTID,AREA and LEN fields. GSI standard metadata is based on INSPIRE and ISO 19115-3 standards. Plain English is used for the Abstract and Description. |
| Tréimhse ama clúdaithe (tús) | 2000-01-01 |
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