© 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: 2012, Kongsberg, Lewis Wave Farm, Underwater Noise Impact Study
Abstract:
Lewis Wave Power has an Agreement for Lease (AfL) from The Crown Estate on a region of the seabed off the north-west coast of Isle of Lewis, Outer Hebrides in order to develop a wave farm using Aquamarine Power’s Oyster wave power technology. The latest generation device is the Oyster 800 which is in the process of being installed for performance assessment at the EMEC range, Billia Croo, Orkney. On satisfactory completion of the testing phase at Billia Croo, it is proposed to install up to 50 such wave devices off the Isle of Lewis. As part of the consenting process mandated by the regulatory authorities, it is necessary for the developer to produce an Environmental Impact Assessment including any specialist technical studies. As a consequence of this requirement, this report, prepared by Kongsberg Maritime Ltd for Aquamarine Power Ltd, provides an assessment of the impact of underwater sound on marine life found in the Lewis Wave Power development area. Subsequently acoustic modelling was undertaken using a suite of computer programs to investigate the underwater noise propagating along a set of transects radiating from the Lewis Wave Power Development area. The programs themselves are based on mature and rigorous scientific methodologies that have been reviewed extensively in the international literature over a number of years. It is considered of fundamental importance that acoustic modelling is not based on “in-house” solutions using non peer-reviewed techniques as this could compromise the developer in the event that the environmental impact assessment documents become subject to scrutiny.
Data holder:
Crown Estate Scotland
Use constraints:
http://marinedataexchange.co.uk/pages/terms-of-use.aspx
| Other details | ||
| Internal code | Internally assigned metadata identifier | 4451 |
| 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. | 2012, Kongsberg, Lewis Wave Farm, Underwater Noise Impact Study |
| 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. | 2388fd70-e7cf-4e19-8f44-6d5f30db8b2e |
| Resource Identifier | This is the code assigned by the data owner. | 250121 |
| 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 | 2012 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2012-01-31 |
| 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. | Lewis Wave Power has an Agreement for Lease (AfL) from The Crown Estate on a region of the seabed off the north-west coast of Isle of Lewis, Outer Hebrides in order to develop a wave farm using Aquamarine Power’s Oyster wave power technology. The latest generation device is the Oyster 800 which is in the process of being installed for performance assessment at the EMEC range, Billia Croo, Orkney. On satisfactory completion of the testing phase at Billia Croo, it is proposed to install up to 50 such wave devices off the Isle of Lewis. As part of the consenting process mandated by the regulatory authorities, it is necessary for the developer to produce an Environmental Impact Assessment including any specialist technical studies. As a consequence of this requirement, this report, prepared by Kongsberg Maritime Ltd for Aquamarine Power Ltd, provides an assessment of the impact of underwater sound on marine life found in the Lewis Wave Power development area. Subsequently acoustic modelling was undertaken using a suite of computer programs to investigate the underwater noise propagating along a set of transects radiating from the Lewis Wave Power Development area. The programs themselves are based on mature and rigorous scientific methodologies that have been reviewed extensively in the international literature over a number of years. It is considered of fundamental importance that acoustic modelling is not based on “in-house” solutions using non peer-reviewed techniques as this could compromise the developer in the event that the environmental impact assessment documents become subject to scrutiny. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Using a simple model to represent the transit of an animal through the proposed Lewis Wave Power Development area, the Sound Exposure Level (SEL) metric was used to determine the build-up of acoustic dose when an animal is exposed to a single source over a period of time. It was found that neither permanent nor temporary hearing damage (Permanent Threshold Shift (PTS) or Temporary Threshold Shift (TTS)) would be likely to arise on cetaceans or pinnipeds. No impact criteria using this metric were available for fish and invertebrates. Aversive behaviour could arise on the harbour porpoise after an exposure duration of 70 seconds. The cumulative impact of adjacent multiple sources was determined for a number of indicative installation and operation scenarios. It was found that even when a total of 50 WECs are in operation at the end of year 4, for marine mammals, neither the Level B – Harassment nor the Low Level Behavioural impact criteria are exceeded. When installation noise is included it was found that the Low Level Behavioural impact criterion was met at a distance of 1 m from the installation site. When determining impacts from multiple sources based on weighted criteria, specifically the dBht, it was found that Strong Avoidance and Mild Avoidance are unlikely to arise in any of the target species considered, while the Mild Avoidance criterion is met only for odontocetes and mysticetes over distances varying between 60 m and 300 m. Using the SEL metric, it was found that neither PTS nor TTS would arise in any of the marine mammal groupings when exposed to operational noise from multiple Oyster WECs. Aversive Behavioural reactions are likely to be seen in the harbour porpoise after an exposure duration of 8 seconds when exposed to the noise arising from each of the operation and installation scenarios considered. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Consenting |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Agreement for Lease Area | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network | |
| Keyword title | MEDIN | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network |
| Keyword title | MEDIN | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Acoustic noise in the water column |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 58.51 |
| East | The eastern-most limit of the data resource in decimal degrees | -6.273 |
| South | The southern-most limit of the data resource in decimal degrees | 58.314 |
| West | The western-most limit of the data resource in decimal degrees | -6.762 |
| 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 | |
| Phone | 02380711840 | |
| Delivery point | Quayside Suite, Medina Chambers, Town Quay | |
| Postal code | SO14 2AQ | |
| City | Southampton | |
| Country | United Kingdom | |
| enquiries@abpmer.co.uk | ||
| URL | http://www.abpmer.co.uk | |
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | Aquamarine Power | |
| info@aquamarinepower.com | ||
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Konsberg Maritime LImited | |
| waterlooville.uk@konsberg.com | ||
| URL | www.km.konsberg.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 | Crown Estate Scotland | |
| Phone | 0131 260 6070 | |
| Delivery point | Quartermile Two, 2nd Floor, 2 Lister Square | |
| Postal code | EH3 9GL | |
| City | Edinburgh | |
| enquiries@crownestatescotland.com | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk/details/CES-205/summary |
| Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk | |
| Dataset constraints | ||
| 20 Limitations on Public Access - Access constraints | copyright | |
| 20 Limitations on Public Access - Other constraints | This states any limitations on access to the data and uses free text. | http://marinedataexchange.co.uk/pages/terms-of-use.aspx |
| 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. | http://marinedataexchange.co.uk/pages/terms-of-use.aspx |
| 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://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. | 2012-01-31 |
| 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. | 2015-11-11 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery Profile |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 2.3.8 |