8a76378d-617d-4b53-91cc-186f2bf26fed English series series 2026-08-07T13:57:17 MEDIN 3.1.2 biota environment geoscientificInformation oceans Seabed photography SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Acoustic noise in the water column SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Side-scan sonar SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Sediment grain size parameters SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Bathymetry and Elevation SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Habitat characterisation SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Habitat extent SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Horizontal velocity of the water column (currents) SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Pre-Construction monitoring The Crown Estate Renewable Energy Development Phases 2012-05-15 revision Agreement for Lease Area The Crown Estate Renewable Energy Development Areas 2012-05-15 revision Offshore Cable Corridor The Crown Estate Renewable Energy Development Areas 2012-05-15 revision Habitats and biotopes GEMET - INSPIRE themes, version 1.0 2009-07-31 revision SeaDataNet sea areas 2012-11-07 revision North Sea SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision soil and sediment boundary layer 2004-09-01T00:00:00 2004-11-30T23:59:59 0.447657201555526 0.52389494189844 53.1644804509372 53.2713172395977 TCE-726 Marine Data Exchange 2004, Envision Mapping, Inner Dowsing - Lynn - Lincs, Sabellaria Spinulosa Survey Sabellaria Spinulosa Survey 2021-05-17T13:44:12 publication English This project presents survey information to determine seabed conditions pre- and post-construction for three offshore wind farms off the Lincolnshire coast (Lincs, Lynn and Inner Dowsing). This report presents the survey results and analysis of the pre-construction phase. The purpose of the survey was to: • Identify the occurrence of Sabellaria spinulosa and, if present, describe the extent of development of reef communities likely to be of conservation importance; • Identify of other benthic habitats that might be sensitive to the construction and operation of wind farms; • Provide a baseline from which the effects of construction can be assessed, especially on any Sabellaria spinulosa; • Survey the seabed bathymetry. There will be no limitations when published on the Marine Data Exchange otherRestrictions Data Must be used in accordance to the Marine Data Exchange's Terms of Use: https://www.marinedataexchange.co.uk/content/info/terms-of-use otherRestrictions The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk custodian Envision Mapping mail@envision.uk.com originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor XceCo Limited ask@xceco.co.uk owner notPlanned Delimited Geographic Information System https://www.marinedataexchange.co.uk/details/TCE-726/summary A link to the web service or dataset. https://www.marinedataexchange.co.uk A link to the general host site. 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 2010-12-08T00:00:00 publication Conformity with the Commission Regulation (EU) No 1089/2010 was either not relevant to this dataset or not a requirement of the Marine Data Exchange for the creation and submission of this dataset; therefore, conformity has not been assessed and cannot be declared False series Two acoustic systems were used to survey the area: a RoxAnn™ AGDS system and a GeoSwath™ interferometric swath bathymetric system. This proved to be an efficient use of vessel time in that AGDS and GeoSwath data (side scan, swath bathymetry and backscatter) were collected simultaneously. The high resolution of the swath system gives information on bedform features as well as general bathymetry and major seabed sediment categories. The system has accurate motion-sensing so that all final outputs are corrected for motion and tide. Although AGDS gives poor resolution, it supplements swath data by giving greater discrimination between different sediment types. The two systems can be operated at a vessel speed of around 10-12km/hr, which enabled areas to be covered relatively rapidly. The Crown Estate mde@thecrownestate.co.uk pointOfContact EPSG Geodetic Parameter Registry 2022-11-29 revision WGS 84