72201e95-f31c-4d63-9698-f1fa91591183 eng dataset Environmental Protection Agency Ireland c.byrne@epa.ie pointOfContact 2010-03-19 ISO 19115 Geographic information – Metadata; WISE Metadata profile 2003/Cor.1:2006 IE_SWRBD_SWB_LWB_20100319 2010-03-22 creation 2010-03-22 revision 2010-03-22 publication IE_SWRBD_SWB_LWB_20100319 These are the lake water body polygons delineated in accordance with Guidance document no. 9 “Implementing the Geographical Information System Elements (GIS) of the Water Framework Directive” (2003) and “Guidance Document No: 22 Updated Guidance on Implementing the Geographical Information System (GIS) Elements of the EU Water policy” (November 2008). Environmental Protection Agency Ireland c.byrne@epa.ie owner Hydrography GEMET - INSPIRE themes, version 1.0 2008-06-01 publication For use in context of River Basin Management Planning only. otherRestrictions WISE Category2 50000 eng inlandWaters -10.715342 -7.623130 51.372242 52.377773 2010-03-22 2015-03-19 Shape file Environmental Protection Agency Ireland c.byrne@epa.ie cdRom dataset Conformity_001 INSPIRE Guidance Document No:22, Support for reporting of RBMP. Guidance on reporting of spatial data 2010-03-22 creation See the referenced specification true In 2002-2003 polygon geometry from a cartographic source (Ordnance Survey Ireland vector Discovery Series water lines) was attributed with a unique code for each lake polygon and a lake name where a name was visible at 1:50,000. Some local names were also applied from the EPA monitoring program stations list. This Lake Segments layer was used as the base geometry for the Lake Water Bodies polygons. A "System B" typology was found to be the most appropriate basis on which to define lake types in Ireland; twelve types have been identified using the factors Alkalinity (surrogate for Geology), depth and size. Biological data from 60 high status lakes across several types and River Basin Districts were used to test that the selected hydromorphological types, derived from these factors, can be discriminated on a biological basis. A thirteenth type was identified to include a number of lakes at altitude >300m. Latitude and Longitude were not considered to be significant factors determining the flora and fauna of Irish lakes. The typology and risk assessment of Irish lakes for article 5 included all lakes greater than 0.5 km2 and lakes less than 0.5 km2 if they were located in protected areas (e.g. in Special Areas of Conservation, or if they were used for water abstraction for drinking purposes). Spatial Accuracy: data mapped from a 1:50000 source. Thematic Accuracy: Lake Water body attributes are based on type criteria originating from the WFD System B typology. Altitude data came from a 20m resolution DTM. Alkalinity categories came from Geological Survery Ireland source data. Currency: Geometry from the 1:50k OS Discovery Series, published in 1998 Logical Consistency: The dataset meets the topological requirements set out in Guidance Document number 22: Support for Reporting of RBMP, Guidance on reporting of spatial data. Historic data management, object lifetime management: An account of predecessors and successors is detailed in the accompanying excel: IE_SWRBD_LWB_Lifetime.xlsx