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Metadata: 2019, Natural Power Consultants Ltd., Thanet Offshore Wind Farm, Benthic Survey
Abstract:
Benthic survey results of grab and video sampling conducted over the Thanet Wind Farm to assess the potential impacts of construction works on the benthic ecology across the site. The survey was conducted in September 2019.
Data holder:
The Crown Estate
| Other details | ||
| Internal code | Internally assigned metadata identifier | 19005 |
| 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. | 2019, Natural Power Consultants Ltd., Thanet Offshore Wind Farm, Benthic Survey |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | Benthic 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. | 1a784ddc-27d2-4dab-99d0-3f1ece27adbf |
| Resource Identifier | This is the code assigned by the data owner. | TCE-2097 |
| 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 | 2019-09-19 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2019-09-23 |
| 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'. | asNeeded |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | Benthic survey results of grab and video sampling conducted over the Thanet Wind Farm to assess the potential impacts of construction works on the benthic ecology across the site. The survey was conducted in September 2019. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | A single sub-tidal benthic survey was required to meet the licence requirements relating to post-construction benthic monitoring (Table 13.5, (Thanet Offshore Wind Farm Ltd, 2014)). The objective of this survey is the assessment of any long-term changes in the benthic ecology as a result of the construction and subsequent operation of the offshore wind farm. A baseline benthic survey was carried out in 2005 (MESL). To allow for a full comparison between survey campaigns, benthic grab sampling stations were selected to mirror those surveyed during the first post-construction survey in 2012, in locations unaffected by infrastructure. Survey stations were examined utilising a drop-down video (DDV) camera system to verify the physical nature of the seafloor and collect information on the epibenthic biology of the area. Grabs were taken in areas identified as suitable by the DDV footage. In areas of rocky ground or Sabellaria aggregations, no grab sampling was undertaken. Benthic grab sampling followed Procedural Guidance No. 3-9 of the JNCC Marine Monitoring Handbook (Thomas, 2001) and Judd (2011) guidelines. Infauna and sediment samples were taken with a 0.1m mini-Hamon grab.The time and location of each grab was recorded using a handheld GPS, proofed with the vessels GPS. Data was analysed alongside all previously collected comparable data in order to evaluate the change over time from baseline to the current post-construction phase. This entailed: Infauna analysed to species level; PSA (and TOC) with comparable fractionation to that undertaken during baseline and 2012; Video and still images to be reviewed, processed and analysed in accordance with national guidelines; Turner et al., (2016), standards for analysis in Visual Seabed Surveys (BS EN 16260:2012) and Coggan et al., (2007); Reefiness assessment for any Sabellaria aggregations observed during the DDV survey (Hendrick and Foster-Smith, 2006); and Statistical analysis, e.g. via Plymouth Routines in Marine Ecological Research (PRIMER) v6 (Clarke and Warwick, 2001) to explore the data and provide comparative analysis between periods and survey occurrences. This analysis was also used to classify the communities and biotopes present according to the Marine Habitat Classification (Connor et al., 2004). Classification was supported by use of JNCC comparative tables and guidance. All data processing and statistical analysis was undertaken using Microsoft Excel and the statistical package Plymouth Routines In Marine Ecological Research (PRIMER) v6 (Clarke and Warwick, 2001). The report cites chart datum (equivalent to Lowest Astronomical Tide), however depths listed in the results are not obviously referenced. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Benthic primary production |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Zoobenthos taxonomic abundance | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Suspended particulate material aggregates | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Habitat characterisation | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Habitat extent | |
| 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 | Species distribution | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 51.47 |
| East | The eastern-most limit of the data resource in decimal degrees | 1.73 |
| South | The southern-most limit of the data resource in decimal degrees | 51.384 |
| West | The western-most limit of the data resource in decimal degrees | 1.527 |
| 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 | Vattenfall Wind Power Ltd | |
| Individual name | Vattenfall United Kingdom Vattenfall United Kingdom | |
| Position name | Vattenfall United Kingdom | |
| mark.vadasz@vattenfall.com | ||
| 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 | Natural Power Consultants | |
| Position name | Geospatial manager | |
| dassh.enquiries@mba.ac.uk | ||
| 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 | Vattenfall Wind Power Ltd | |
| info@thanetextension.com | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk/details/TCE-2097/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 | Once published, there will be no limitations on public access. Data must be used in accordance with the Marine Data Exchanges Terms of Use which can be found on the website. | |
| 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. | Once published, there will be no constraints on access and use. Data must be used in accordance with the Marine Data Exchanges Terms of Use which can be found on the website. |
| 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. | 2025-05-15 |
| 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. | 2026-02-10 |
| 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 |