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Metadata: 2015, Bibby Hydromap, Walney and West of Duddon Sands, Geophysical and Bathymetric Survey (2015-014B - WoDS)
Abstract:
Bibby HydroMap were commissioned in April 2015 by DONG Energy to carry out a geophysical survey on a selection of areas located in the Walney Offshore Windfarm (WOW), and a bathymetric survey on the West of Duddon Sands (WoDS) windfarm. The survey comprises of mapping the seabed surrounding the offshore sub-stations (OSS), a number of the wind turbines (WTGs), inter-array cables, and associated export cables. The sites are located in Morecombe Bay, Irish Sea. The surveys were completed under existing framework terms and conditions, with some alterations. The survey were undertaken between 1st and 20th April 2015. This series contains reports/data relating to the West of Duddon Sands array and export cable route only.
Data holder:
The Crown Estate
| Other details | ||
| Internal code | Internally assigned metadata identifier | 19049 |
| Title | The title is used to provide a brief and precise description of the dataset such as 'Date', 'Originating organisation/programme', 'Location' and 'Type of survey'. All acronyms and abbreviations should be reproduced in full. | 2015, Bibby Hydromap, Walney and West of Duddon Sands, Geophysical and Bathymetric Survey (2015-014B - WoDS) |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | Geophysical and Bathymetric Survey (2015-014B - WoDS) |
| File Identifier | The File Identifier is a code, preferably a GUID, that is globally unique and remains with the same metadata record even if the record is edited or transferred between portals or tools. | 2c06bd9e-5871-4eeb-96ac-88b8e4db5ae7 |
| Resource Identifier | This is the code assigned by the data owner. | TCE-2211 |
| Resource type | The resource type will likely be a dataset but could also be a series (collection of datasets with a common specification) or a service. | series |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 2015-04-01 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2015-04-19 |
| Frequency of updates | This describes the frequency with which the resource is modified or updated i.e. a monitoring programme that samples once per year has a frequency that is described as 'annually'. | notPlanned |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | Bibby HydroMap were commissioned in April 2015 by DONG Energy to carry out a geophysical survey on a selection of areas located in the Walney Offshore Windfarm (WOW), and a bathymetric survey on the West of Duddon Sands (WoDS) windfarm. The survey comprises of mapping the seabed surrounding the offshore sub-stations (OSS), a number of the wind turbines (WTGs), inter-array cables, and associated export cables. The sites are located in Morecombe Bay, Irish Sea. The surveys were completed under existing framework terms and conditions, with some alterations. The survey were undertaken between 1st and 20th April 2015. This series contains reports/data relating to the West of Duddon Sands array and export cable route only. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | The vertical datum used for all measurements was Lowest Astronomical Tide (LAT), as defined in the Project Scope, using the UKHO VORF model. QINSy was setup to apply the VORF LAT separation model to reduce the height observations of the CNav 3050 GNSS, which was receiving RTK corrections. This reduced LAT height was applied to multibeam soundings to calculate the reduced depth. A tidal data plot is presented in Appendix 2 to this report. The graph presents the applied tide heights as well as a comparison of heights against 3rd party tide data. 4.1.2 Processing Methodology The processed data files were gridded and reviewed in QINSy Processing Manager. The gridded surface was checked for data quality and accurate reduction in line with Special Order, and to ensure all ancillary data was applied correctly before Processing Manager was used to correct and filter bathymetric data. Data editing was completed using a combination of tools, including QPS Qloud and Fledermaus which all have a two-way relationship with Processing Manager. This allows the bathymetry surface to update with the changes made by the processor, which enables real-time validation of the data editing. Once cleaned, a combined surface of the multibeam data was generated at 0.5m bin resolution and used for the creation of seabed imagery and exports of XYZ files. The side scan sonar data was processed in Coda Survey Engine Mosaic+ software, allowing accurate picking of the seabed before applying a slant range correction and playing in to the mosaic. The navigation data recorded in the side scan data during acquisition was then filtered to remove any bad position fixes and create a smooth position interpolated for each sonar ping. A fixed layback was applied to account for the separation between the USBL beacon and towfish transceivers. The position of the side scan data was compared to the bathymetry to check that the position of significant targets match between the two datasets, within the specified tolerances. The data was enhanced in the mosaic window by applying TVGs and layering the data accordingly to create a final image of the seabed. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine archaeology |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Side-scan sonar | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Sound velocity and travel time in the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bathymetry and Elevation | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Post-Construction monitoring | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Renewable Energy Lease area | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Cable crossing | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Offshore Substation | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Offshore Cable Corridor | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Elevation | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Geology | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 54.127911746986 |
| East | The eastern-most limit of the data resource in decimal degrees | -3.4437329518523 |
| South | The southern-most limit of the data resource in decimal degrees | 54.00926424012 |
| West | The western-most limit of the data resource in decimal degrees | -3.6707755536711 |
| Responsible organisations | ||
| Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
| Organisation name | The Crown Estate | |
| Phone | +44 020 7851 5000 | |
| enquiries@thecrownestate.co.uk | ||
| Role | The custodian is the person or organisation that accepts responsibility for the resource and ensures appropriate care and maintenance. If a dataset has been lodged with a Data Archive Centre for maintenance then this organisation is be entered here. | custodian |
| Organisation name | The Crown Estate | |
| Phone | +44 020 7851 5000 | |
| enquiries@thecrownestate.co.uk | ||
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Bibby HydroMap Ltd | |
| Phone | +44 (0)151 328 1120 | |
| enquiries@bibbyhydromap.com | ||
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | The Crown Estate | |
| Phone | +44 020 7851 5000 | |
| enquiries@thecrownestate.co.uk | ||
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | Orsted | |
| Customer-questions@orsted.com | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk/details/TCE-2211/summary |
| Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk | |
| Dataset constraints | ||
| 20.1 Limitations on Public Access - Access constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 20.2 Limitations on Public Access - Other constraints | There will be no limitations when published on the Marine Data Exchange | |
| 21.1 Conditions for Access and Use - Use constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 21.2 Conditions for Access and Use - Other constraints | This states any constraints on use of the data. Multiple conditions can be recorded for different parts of the data resource. If no conditions apply, then `No condtions apply` is recorded. This uses free text. | 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 |
| Version info | ||
| Date of publication | The publication date of the resource or if previously unpublished the date that the resource was made publicly available via the MEDIN network. | 2023-09-04 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-19 |
| Metadata date | The date when the content of this metadata record was last updated. | 2026-03-16 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 3.1.2 |