NRW_DS115166 eng NRW_DS101977 dataset Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en pointOfContact 2026-03-03T15:34:48 MEDIN 3.1.2 wel eng utf8 Latitude and Longitude (EPSG::4326) HABMAP Acoustic Multibeam Echosounder Survey of Selected Areas of the Southern Irish Sea (Summer 2005) HABMAP Acoustic Multibeam Echosounder Survey of Selected Areas of the Southern Irish Sea (Summer 2005) Arolwg ecoseinydd amlbaladr acwstig o ardaloedd penodedig yn ne Mor Iwerddon ar gyfer y prosiect HABMAP, haf 2005 2001-05-01 publication 4f4c4942-4343-5764-6473-313135313636 The HABMAP project was set up in response to the need for better spatial awareness of habitat distributions in the Southern Irish Sea. It was a partnership project between partners in Wales and Ireland, and part funded by INTERREG IIIa European regional development fund. Data collection included acoustic data, sediment data and seabed imagery. These data were used to classify the seabed and feed into a predictive modelling process to predict benthic habitat. The multibeam data was collected in five locations throughout the Southern Irish Sea by the R/V Celtic Voyager to Irish National Seabed Survey (INSS) standard. They were then processed, cleaned and classified based on acoustic classes, which were then related to seabed sediment types. Bedforms were also identified using the MBES data. The Coordinate System used for the multibeam data was UTM Zone 30N. The xyz data was usually processed to a 5 m resolution. The purpose of this data capture was to obtain multibeam coverage of the five study areas identified to cover a variety of different environments with different physical properties and biological communities. This would be used to link backscatter intensity to physical properties of the seabed. Data depth corrected for tide using POLPRED software which utilises one or more of Proudman Oceanographic Laboratory's hydrodyamic models, and reduced to chart datum. CARIS HIPS / SIPS software used to create surfaces and gridded datasets by experienced surveyors. The HABMAP project was set up in response to the need for better spatial awareness of habitat distributions in the Southern Irish Sea. It was a partnership project between partners in Wales and Ireland, and part funded by INTERREG IIIa European regional development fund. Data collection included acoustic data, sediment data and seabed imagery. These data were used to classify the seabed and feed into a predictive modelling process to predict benthic habitat. The multibeam data was collected in five locations throughout the Southern Irish Sea by the R/V Celtic Voyager to Irish National Seabed Survey (INSS) standard. They were then processed, cleaned and classified based on acoustic classes, which were then related to seabed sediment types. Bedforms were also identified using the MBES data. The Coordinate System used for the multibeam data was UTM Zone 30N. The xyz data was usually processed to a 5 m resolution. The purpose of this data capture was to obtain multibeam coverage of the five study areas identified to cover a variety of different environments with different physical properties and biological communities. This would be used to link backscatter intensity to physical properties of the seabed. Data depth corrected for tide using POLPRED software which utilises one or more of Proudman Oceanographic Laboratory's hydrodyamic models, and reduced to chart datum. CARIS HIPS / SIPS software used to create surfaces and gridded datasets by experienced surveyors. Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en owner Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en custodian Marine Institute Marine Institute Headquaters, Rinville, Oranmore, Co. Galway, Ireland institute.mail@marine.ie http://www.marine.ie originator United Kingdom Hydrographic Office (UKHO) Admiralty Way, Taunton, Somerset, TA1 2DN helpdesk@ukho.gov.uk www.ukho.gov.uk distributor Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en distributor notPlanned Hydrography Oceanographic geographical features theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme HABMAP Subtidal subtidal sediments theme NRW Thesaurus 2025-01-08 publication geonetwork.thesaurus.local.theme.converted_nrw-keywords Acoustic backscatter in the water column theme SeaDataNet Parameter Discovery Vocabulary 2024-06-19 publication geonetwork.thesaurus.external.theme.rdf+xml otherRestrictions There are no access restrictions to this data. NRW may release, publish or disseminate it freely. no limitations otherRestrictions © CNC/NRW 2009 There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source. Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. vector 5 eng utf8 oceans SeaVoX Vertical Co-ordinate Coverages 2021-01-06 revision benthic boundary layer NRW Geographic Identifiers Collection 2024-01-01 publication Tremadog Bay NRW Geographic Identifiers Collection 2024-01-01 publication Cardigan Bay NRW Geographic Identifiers Collection 2024-01-01 publication Caernarfon Bay NRW Geographic Identifiers Collection 2024-01-01 publication St. George's Channel NRW Geographic Identifiers Collection 2024-01-01 publication St. Brides Bay NRW Geographic Identifiers Collection 2024-01-01 publication Celtic Sea NRW Geographic Identifiers Collection 2024-01-01 publication Irish Sea -6.50 -4.38 51.30 53.20 2005-06-14 2005-06-28 Geographic Information System [A] xyz data in TAB format Delimited [B] xyz data in .txt and CARIS HIPS raw data format Image [C] GeoTiff Images. dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication This dataset has not been assessed for conformance to the referenced INSPIRE regulation. false Multibeam echosounder data acquired using Kongsberg Simrad EM1002 hull mounted on the Research Vessel (RV) Celtic Voyager. Frequency 93kHz (outer +/- 20 degrees) and 98kHz (inner +/- 50 degree swath centered at Nadir) utilising MERLIN software package. Swath ideally kept at maximum of 68 degrees to cover approximately 4.7 times water depth. Line spacing planned to give approximately 20 percent overlap. Multibeam echosounder data acquired using Kongsberg Simrad EM1002 hull mounted on the Research Vessel (RV) Celtic Voyager. Frequency 93kHz (outer +/- 20 degrees) and 98kHz (inner +/- 50 degree swath centered at Nadir) utilising MERLIN software package. Swath ideally kept at maximum of 68 degrees to cover approximately 4.7 times water depth. Line spacing planned to give approximately 20 percent overlap.