© OpenStreetMap contributors
- Add External Layer
- Upload Shapefile
- Layer Tutorial
- Close
Use the checkbox () to show or hide a layer.
Use the radio buttons () to select a layer to use with the identify function.
- Layers
- Opacity
Available layers
(ctrl+c)
Search for marine data across UK organisations
- API
- How-To
- About
- Contact MEDIN
- Share
Metadata: 2024, Natural Power Consultants Ltd, Thanet Offshore Wind Farm, Benthic Survey
Abstract:
Within the Environmental Statement (ES) for the development of the Thanet OWF, Thanet Offshore Wind Limited committed to undertaking three post-construction monitoring surveys over a ten-year period to help ascertain impacts of the wind farm during the construction and operational phases, or longer-term changes from those recorded pre-construction. In addition, post-construction surveys would help to provide further information where uncertainty remained and test predictions made in the ES. A FEPA Licence was granted for the construction and operation of the project in 2006 and was subsequently converted to a Marine Licence in 2013 (L/2013/00011/14), for which the accompanying Annex 1 described the requirements for post-construction benthic surveys as required under Marine Licence conditions 3.1.8 and 3.1.9. In line with Licence requirements, a Post-Construction Environmental Monitoring Plan (PCEMP) was produced (Thanet Offshore Wind Farm Limited, 2010) and agreed with the MMO which set out the survey programme and objectives for all post construction monitoring. The survey programme confirmed that changes would be monitored over a ten-year period, with surveys being undertaken in years one, five and ten following the completion of construction (2012, 2017 and 2022 respectively). The second post-construction monitoring survey (originally due in 2017) was completed in 2019, and the Licencing Authority has indicated that in order for Thanet Offshore Wind Limited to remain compliant with consent conditions, the third post-construction monitoring survey was then completed in in 2022. The objective of this third post construction survey is the assessment of any long-term changes in the benthic ecology resulting from the construction and subsequent operation of the OWF. This report details the findings of the third and final post-construction monitoring survey, completed in September 2022 and a comparison of results across pre-construction monitoring and all post-construction monitoring years.
Data holder:
The Crown Estate
Use constraints:
Publicly Available
| Other details | ||
| Internal code | Internally assigned metadata identifier | 764 |
| 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. | 2024, Natural Power Consultants Ltd, Thanet Offshore Wind Farm, 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. | 2fc4d6e8de2cf06687d7f81463b97375 |
| Resource Identifier | This is the code assigned by the data owner. | MSE-TCE-131-4051 |
| 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 | 2022-09-08 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2022-09-11 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | inapplicable |
| 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. | Within the Environmental Statement (ES) for the development of the Thanet OWF, Thanet Offshore Wind Limited committed to undertaking three post-construction monitoring surveys over a ten-year period to help ascertain impacts of the wind farm during the construction and operational phases, or longer-term changes from those recorded pre-construction. In addition, post-construction surveys would help to provide further information where uncertainty remained and test predictions made in the ES. A FEPA Licence was granted for the construction and operation of the project in 2006 and was subsequently converted to a Marine Licence in 2013 (L/2013/00011/14), for which the accompanying Annex 1 described the requirements for post-construction benthic surveys as required under Marine Licence conditions 3.1.8 and 3.1.9. In line with Licence requirements, a Post-Construction Environmental Monitoring Plan (PCEMP) was produced (Thanet Offshore Wind Farm Limited, 2010) and agreed with the MMO which set out the survey programme and objectives for all post construction monitoring. The survey programme confirmed that changes would be monitored over a ten-year period, with surveys being undertaken in years one, five and ten following the completion of construction (2012, 2017 and 2022 respectively). The second post-construction monitoring survey (originally due in 2017) was completed in 2019, and the Licencing Authority has indicated that in order for Thanet Offshore Wind Limited to remain compliant with consent conditions, the third post-construction monitoring survey was then completed in in 2022. The objective of this third post construction survey is the assessment of any long-term changes in the benthic ecology resulting from the construction and subsequent operation of the OWF. This report details the findings of the third and final post-construction monitoring survey, completed in September 2022 and a comparison of results across pre-construction monitoring and all post-construction monitoring years. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | 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 (Figure 3.1). A total of 20 sampling stations within the array and five reference stations outside the array were sampled, in line with the sampling regime of 2012 and 2019. Triplicate grab samples (as per agreement with MMO on the second benthic survey scope - discharged on the 21/10/2019 document reference number 33119/051108/R10.1) were obtained from each station, depending on the situation. Prior to the grab being deployed at each station, a drop-down video (DDV) system was used to obtain seabed imagery to ensure that the grab was not deployed on any potential S. spinulosa aggregations. This also allowed for the epibenthic community to be characterised at each location. 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 in accordance with the NMAQC protocol (Wordsfold et al., 2010); PSA (and TOC) with comparable fractionation to that undertaken during baseline, 2012 and 2019; 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); and Reefiness assessment for any Sabellaria aggregations observed during the DDV survey (Turner et al., 2016, Gubbay, 2007; Irving, 2009; Golding et al., 2020). Prior to any statistical analysis, all data was collated in excel spreadsheets and made suitable for statistical analysis through the assignation of factors which included project phase and location as treatment groups. The names of species recorded during pre-construction (EIA) characterisation were checked for any taxonomical changes on the WoRMs database and amended. In order to undertake full and comprehensive statistical analysis between phases, species recorded as present were assigned an abundance value of one and species identified as juveniles remained as such for the analysis. Sampling stations surveyed in triplicate were treated as individual samples and were not aggregated. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | NDGO0005 | |
| Keyword title | data.gov.uk | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Habitats and biotopes |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Oceanographic geographical features | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Species distribution | |
| 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 | Habitat extent | |
| 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 | Suspended particulate material aggregates | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Benthic primary production | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 51.4607 |
| East | The eastern-most limit of the data resource in decimal degrees | 1.6878 |
| South | The southern-most limit of the data resource in decimal degrees | 51.4026 |
| West | The western-most limit of the data resource in decimal degrees | 1.5695 |
| Regional sea | Southern North Sea | |
| bathybenthic | ||
| 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 | Matthew Jeans | |
| matthew.jeans@vattenfall.com | ||
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Natural Power Consultants | |
| Position name | Consultant | |
| sayhello@naturalpower.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 | |
| Delivery point | 16 New Burlington Place | |
| Postal code | W1S 2HX | |
| City | London | |
| enquiries@thecrownestate.co.uk | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | http://www.marinedataexchange.co.uk/ |
| Locator name | Name of the web resource | Marine Data Exchange |
| Dataset constraints | ||
| 20 Limitations on Public Access - Access constraints | otherRestrictions | |
| 20 Limitations on Public Access - Other constraints | This states any limitations on access to the data and uses free text. | Publicly Available |
| 21 Conditions for Access and Use - Use limitation | 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. | 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. | 2024-06-24 |
| Date of last revision | The most recent date that the resource was revised. | 2024-06-24 |
| 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. | 2024-10-02 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery metadata standard |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 2.3.8 |