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The County Clare Wetlands Survey Patrick Crushell & Peter Foss 2008 ____________________________________________________________________________________ 7.1.4 Time constraints In general all data provided to the CWS was incorporated in the GIS dataset prepared during the course of this study. However, due to the time constraints some data provided by third party sources has not been incorporated into the GIS, nor has all relevant site data been transferred to the CWS site database. A list of potentially useful data sources that have not been consulted during the CWS due to unavailable data or late submission by third parties are presented at the end of Appendix 1. Due to time constraints, it was also not possible to systematically assess the threats and damage to all CWS wetland sites by aerial photograph analysis. 7.2 CWS Site Database The CWS site database version 1.0 holds information on 300 wetland sites (sites and sub-sites) in county Clare. The report CD includes a copy of the original Filemaker Pro CWS site database. In addition to the wetland sites recorded in the CWS site database a further 63 site records which were found not to contain wetlands but do occur in County Clare is also provided in a separate non-wetland database on the report CD. A list of the wetland sites recorded in the CWS database and the specific wetlands recorded on each is provided in Appendix 8 in this report (an Excel version of this spreadsheet is included on the report CD). The data on wetland habitats occurring on sites is summarised in Table 7.1 below. The list of all information (with the exception of detailed site descriptions) held on the various site records in the CWS database is provided on the Excel spreadsheet file (CWS_total_dbase_site_data_export.xls) included on the report CD. 7.3 CWS GIS Database In all, approximately 45 datasets were incorporated into the GIS (see Appendix 1 for full list of GIS sources). Data was extracted from many of these sources while others were used as base maps to indicate the likely occurrence or otherwise of wetland habitats. In all 1932 habitat polygons (excluding sliver polygons) were imported from other datasets and a further 137 were created during the course of the CWS. The total area of wetland in county Clare within the CWS GIS dataset is 23,440 ha in a total of 2069 mapped wetland units. The outputs from the CWS GIS includes six individual ESRI shape-files and equivalent MapInfo Tab files. These are summarised in Table 7.1 below and further details are presented in Appendix 3 and 4. Copies of these files can be found on the report CD. 47
The County Clare Wetlands Survey Patrick Crushell & Peter Foss 2008 ____________________________________________________________________________________ Table 7.1. Final GIS output files from the CWS wetland survey. Further details of output files are presented in Appendix 4. File Name CWS Site Locations CWS Site Boundaries CWS Polygon Habitats CWS Spring Sites CWS Clare Rivers CWS Drainage Ditches Brief Description Point file showing the location of each CWS site stored in the CWS site database. Contains much of the data contained in the CWS site database within the file attribute table. Polygon file showing the boundary of each CWS site stored in CWS site database. Standard attributes include area, site name, area, source, designation etc. Polygon file showing the boundary of each CWS site stored in CWS site database. Standard attributes include area, Fossitt code and source. Point file showing the location of spring sites identified during the course of the CWS. Standard attributes include Fossitt code, townland name, source and grid co-ordinates. Line file showing rivers throughout county Clare as identified from third party sources. Attributes include name, length, order, source, and unique segment code. Line file showing drainage ditches throughout as identified from third party sources. Attributes include length, source and Fossitt code. 48
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Appendix 8. The County Clare Wetlan
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Report Cover Vol I - Clare County Library

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