93aee5e0-9003-4b79-9a5a-03ff4aa330df eng series ABPmer +44 023 8071 1840 ABPmer, Quayside Suite, Medina Chambers, Town Quay Southampton SO14 2AQ United Kingdom enquiries@abpmer.co.uk https://www.abpmer.co.uk/ pointOfContact 2015-11-11 MEDIN Discovery Profile 2.3.8 urn:ogc:def:crs:EPSG::32630 2010, Aspect Land and Hydrographic Surveys, North West Lewis Wave Farm, Site Investigation Survey - Siadar to Bragar 2010, Aspect Land and Hydrographic Surveys, North West Lewis Wave Farm, Site Investigation Survey - Siadar to Bragar 2010-10-19 revision a4655 On the instructions of Aquamarine Power Ltd, multibeam bathymetric and sub bottom profiling surveys were conducted on the west coast of the Isle of Lewis between 18th August and 2nd September 2010. The survey was to inform planning for the development of a wave energy project in the area. Crown Estate Scotland 0131 260 6070 Crown Estate Scotland, Quartermile Two, 2nd Floor, 2 Lister Square Edinburgh EH3 9GL Scotland enquiries@crownestatescotland.com https://www.crownestatescotland.com custodian Aspect Land & Hydrographic Surveys +44 (0)1294 313399 +44 (0)1294 313389 Thornhouse Business Centre, 30 Ballot Road Irvine North Ayrshire KA12 0HW United Kingdom mail@aspectsurveys.com http://www.aspectsurveys.co.uk originator notPlanned Consenting The Crown Estate Renewable Energy Development Phases 2012-05-15 revision 1 Agreement for Lease Area The Crown Estate Renewable Energy Development Areas 2012-05-15 revision 1 Bathymetry and Elevation Coastal geomorphology Seismic reflection Seismic refraction SeaDataNet Parameter Discovery Vocabulary 2015-04-09 revision 88 Marine Environmental Data and Information Network Marine Environmental Data and Information Network http://marinedataexchange.co.uk/pages/terms-of-use.aspx copyright otherRestrictions copyright otherRestrictions http://marinedataexchange.co.uk/pages/terms-of-use.aspx http://marinedataexchange.co.uk/pages/terms-of-use.aspx eng environment -6.762 -6.273 58.314 58.51 2010-08-18 2010-09-02 Geographic Information System Geographic Information System https://www.marinedataexchange.co.uk/details/CES-208/summary A link to the web service or dataset. https://www.marinedataexchange.co.uk A link to the general host site. series EM3002 - Kongsberg SIS software was used to control the MBES system during the data gathering phase. Data was simultaneously logged in Kongsberg SIS and HYPACK HYSWEEP software to ensure data redundancy were a computer to fail. R2Sonic 2024 – The Sonic 2024 was controlled via the Sonic Control 2000 program. Data was logged in Hypack during the data gathering phase. After data gathering all data was post processed in HYPACK MBMax where the following stages of processing were undertaken: ß Navigation data was processed. ß Motion Sensor data was examined and edited as required. ß Automatic filtering of the data was carried out. ß Individual lines of MBES sounding data were manually edited. ß Processed files were loaded into Fledermaus visualisation and editing software and fully quality assured before being unloaded back to Hypack. ß The data was gridded at an appropriate post spacing for the scale of plot requested by the client. This was exported to AutoCAD for presentation. ß The data was contoured at 1m intervals in Hypack and exported to AutoCAD. ß X,Y, Z, files at 0.5m post spacing were generated and exported in Hypack. These higher density data files will be rendered to the client in ASCII X,Y,Z format. Data was then transferred to Fledermaus for quality control and preparation of 3D visualisations. The SEG-Y data gathered by the Edgetech 3100P 2-10KHz sub bottom profiler was processed in Chesapeake SonarWiz.MAP software. The following stages were undertaken: ß SEG-Y data was imported to the software. ß The Gain and Time Variable Gain settings were adjusted to ensure that the best possible picture of the sub bottom data was available to the user. ß Each individual horizon was digitised including: o Surface o Sediment horizon 1 o Sediment Horizon 2 o Isolated Reflectors - Point Hyperbolae sonar returns within the sediment o Rockhead / Glacial Till ß Each horizon was referenced to the Multibeam Bathymetry to ensure a coherent record. ß Individual horizons were exported to McCarthy Taylor Systems LSS (3D modelling software) where it was gridded, contoured and prepared for export to AutoCAD. ß Drawing files prepared in AutoCAD to represent the deliverables requested by the client. ß SEG-Y data was saved to DVD as requested and rendered to the client.