7978ab93-6723-42cc-954b-1c8538978379 English series series 2026-08-17T16:11:05 MEDIN 3.1.2 climatologyMeteorologyAtmosphere oceans Other wave statistics SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Wave direction SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Wind stress and shear SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Wave height and period statistics SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Wind strength and direction SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Consenting 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 Hydrography GEMET - INSPIRE themes, version 1.0 2009-07-31 revision SeaDataNet sea areas 2012-11-07 revision English Channel SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision water column 2004-03-01T00:00:00 2004-03-01T23:59:59 1.18221415492963 1.26099093245853 51.7105268136316 51.7529100147345 TCE-522 Marine Data Exchange 2004, ABP Mer, Gunfleet Sands 1 and 2, Metocean Assessment Metocean Assessment 2021-05-17T13:39:04 publication English This project details an assessment of wave, tide and seabed mobility to support engineering design requirements of the Gunfleet Sands Offshore Windfarm project. This assessment was carried out by ABPmer. Details are provided which specify conditions related to each of the proposed turbine installation sites This work was based on the best available data resource that includes a combination of site surveys and pre-existing data sets. For this assessment, ABPmer were asked to provide an evaluation of: extreme wave height conditions for 1:50 and 1:100 return periods, peak flow conditions with and without surge influences, and seabed level changes. The outcome of this assessment show that between 1985 and 2001 there have been key changes in the seabed level. Further seabed changes across the sandbank, in general, area likely. It would be prudent to re-survey the area at suitable intervals, and perhaps, initially, prior to construction, to develop further evidence of seabed stability. The outcome of this assessment also shows that the largest extreme waves are consistently predicted to occur along the south-east edge of the development site, with the highest waves generally encountered around turbine 19 (which is also in the general area of Thales South). This assessment also shows that strong winds can enhance tidal flows through wind-driven currents. The strong winds in this area are most likely to enhance this phase of tidal flows. Presentation type: digital representation of a primarily textual item (can contain illustrations also) Supply media: 002 Origin: ABPmer 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 ABP Marine Environmental Research Ltd 02380711840 enquiries@abpmer.co.uk originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor Orsted info@orsted.com owner notPlanned Documents https://www.marinedataexchange.co.uk/details/TCE-522/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 In deep water, the process for estimating extreme waves is fairly simple given a suitable source of local wave observations, since the statistical probability distribution can be derived for the single variable of wave height. In shallow water, and in the case of the Thames Estuary, various influences occur on the wave regime which make the process of estimating extreme waves more complex. First estimations of extreme wave conditions related to the Gunfleet Sands Offshore Windfarm are provided in ABPmer (2002), and include for various offshore conditions up to 1:50 year return periods. Wave modelling has then been used to describe the local wave conditions across the sandbank as the offshore wave moves into shallower water. Since this work was reported, further on-site measurements at Thales North & South have been made which, importantly, extend over winter periods. Orsted info@orsted.com pointOfContact EPSG Geodetic Parameter Registry 2022-11-29 revision WGS 84