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Metadata: 2020, Ultrabeam Hydrographic, Blyth Demonstration Site, Subsea Monitoring Survey
Abstract:
Ultrabeam Hydrographic were asked by EDF Energy Renewables to undertake a subsea monitoring survey of the Blyth Offshore Demonstrator - Array 2. The main objectives of the survey were to: - Identify seabed debris within the construction area; - Identify changes to seabed morphology to enable the evaluation of the effectiveness of installed scour protection and ratify the predictions for the scour development; - Inform the foundation and cable maintenance schedule; - Satisfy the requirements of the Marine Licence. The operations were undertaken between 24th June 2020 and 4th July 2020.
Data holder:
The Crown Estate
| Other details | ||
| Internal code | Internally assigned metadata identifier | 19119 |
| 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. | 2020, Ultrabeam Hydrographic, Blyth Demonstration Site, Subsea Monitoring Survey |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | Subsea Monitoring Survey |
| 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. | 4911230d-7bb9-4aa7-b9cb-d4520515f91d |
| Resource Identifier | This is the code assigned by the data owner. | TCE-104 |
| 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 | 2020-06-24 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2020-07-04 |
| 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. | Ultrabeam Hydrographic were asked by EDF Energy Renewables to undertake a subsea monitoring survey of the Blyth Offshore Demonstrator - Array 2. The main objectives of the survey were to: - Identify seabed debris within the construction area; - Identify changes to seabed morphology to enable the evaluation of the effectiveness of installed scour protection and ratify the predictions for the scour development; - Inform the foundation and cable maintenance schedule; - Satisfy the requirements of the Marine Licence. The operations were undertaken between 24th June 2020 and 4th July 2020. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Data acquisition for the survey was undertaken from the 10m commercial workboat, Taurus, which was equipped with a Norbit MBES, an Edgetech 4200 side scan sonar, Applanix POS MV Wavemaster II and Mini Ranger 2 USBL system. Primary position, heading and vessel attitude data was provided by an Applanix POS MV Wavemaster II Inertial Navigation System (INS). The POS MV provides positioning, orientation and attitude data to be applied to remove the effects of vessel dynamics, even during periods of poor GPS signal and total outages. The system comprises of 3 main components: â?¢ Inertial Measurement Unit (IMU) containing high quality accelerometers and gyros, installed as close as possible to the vesselâ??s axis of rotation and gravity. â?¢ Processing Control System (PCS) containing the GPS cards and main system interface. â?¢ 2 x Dual Frequency Trimble GPS receivers, mounted perpendicular to the vessel centreline. A Norbit WBMS multibeam echo sounder was used to collect bathymetry data within the survey area. A sound velocity (SV) sensor was installed within the transducer bracket to provide real-time SV values. The system was interfaced with the primary GNSS and AHRS to provide timing and motion data to the collected bathymetry data. The MBES and peripheral sensors were interfaced to QPS QINSy, which stored and visualised the data during acquisition. The multibeam system performed as expected during acquisition, generally providing high quality data collection throughout the survey area. Data was continually monitored during acquisition by the online surveyor. An Edgetech 4200 dual frequency digital high resolution side scan sonar system was utilised for this aspect of the works. The system comprised a digital tow fish and a transceiver processor unit (TPU) interfaced to a Coda DA4G geophysical data acquisition system running Coda GeoSurvey acquisition software. Coda GeoSurvey software records dual frequency raw data simultaneously which is time stamped and combined with positional information from QPS QINSy navigation software, providing real time geo-referencing of the records. The sonar data is displayed in real time and gains are applied to the raw data for preliminary interpretation of the seabed acoustic properties and for the investigation of any potential target present on the seabed or on the water column, along with the capability for target tagging and accurate measurement and image capture tools. The tow fish was positioned using the cable counter measurements together with the tow point position and reciprocal tow point course-over-ground bearing. The tow fish heading is then calculated as the calculated tow fish course-over-ground. The side scan sonar data collected was generally of high quality. Over 200% coverage was achieved, allowing targets to be identified on more than one survey line and the centres of each swath to be covered. Side scan sonar line spacing was 35m and an operating range of 50m was utilised. The fish was towed at an optimum height (for the range of 50m) of approximately 5m above the seabed. Occasional tugging was evident, although this has not affected the quality of the final mosaic or the identification of any targets, features or seabed character. |
| Related keywords | ||
| Keyword | 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 | 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 | Hydrography | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 55.24 |
| East | The eastern-most limit of the data resource in decimal degrees | -1.27 |
| South | The southern-most limit of the data resource in decimal degrees | 55.1 |
| West | The western-most limit of the data resource in decimal degrees | -1.53 |
| 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 | ABP Marine Environmental Research Ltd | |
| Phone | 02380711840 | |
| enquiries@abpmer.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 | Ultrabeam Limited | |
| Phone | +44 017 3675 7085 | |
| enquiries@ultrahydrographic.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 | The Crown Estate | |
| Phone | +44 020 7851 5000 | |
| enquiries@thecrownestate.co.uk | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk/details/TCE-104/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 | http://www.marinedataexchange.co.uk/pages/terms-of-use.aspx | |
| 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. | http://www.marinedataexchange.co.uk/pages/terms-of-use.aspx |
| 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. | 2023-03-06 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-12 |
| Metadata date | The date when the content of this metadata record was last updated. | 2026-02-10 |
| 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 |