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Metadata: 2003-2004, Subacoustech Ltd., Assessment of sub-sea noise and vibration from offshore wind turbines and its impact on marine wildlife
Abstract:
The report in this series presents the analysis and interpretation of a significant body of underwater noise measurements taken in the period April 2003 to January 2004. The research commenced with baseline measurements of the pre-existing level of background noise at typical offshore windfarm sites in the UK, and progressed to measurements of noise from a wide variety of sources during the construction of offshore windfarms. A detailed analysis of the measurements has been made which indicates the spatial, temporal and statistical properties of the noise, and evaluates construction noise in terms of its potential for environmental effect. An estimation of the likely behavioural and physical effects on a selection of common species of fish and marine mammals has been made using both conventional analysis and the dBht (species) scale
Data holder:
The Crown Estate
| Other details | ||
| Internal code | Internally assigned metadata identifier | 5363 |
| 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. | 2003-2004, Subacoustech Ltd., Assessment of sub-sea noise and vibration from offshore wind turbines and its impact on marine wildlife |
| 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. | c7511713-d088-469b-a202-48a470527f13 |
| Resource Identifier | This is the code assigned by the data owner. | 3225 |
| 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 | 2026-04-19 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2026-04-19 |
| 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. | The report in this series presents the analysis and interpretation of a significant body of underwater noise measurements taken in the period April 2003 to January 2004. The research commenced with baseline measurements of the pre-existing level of background noise at typical offshore windfarm sites in the UK, and progressed to measurements of noise from a wide variety of sources during the construction of offshore windfarms. A detailed analysis of the measurements has been made which indicates the spatial, temporal and statistical properties of the noise, and evaluates construction noise in terms of its potential for environmental effect. An estimation of the likely behavioural and physical effects on a selection of common species of fish and marine mammals has been made using both conventional analysis and the dBht (species) scale |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | The basic steps in the processing and quality checking were as follows: 1. the log file for the measurement was interrogated to find equipment settings, GPS positions and other information, such as weather conditions; 2. the signal was spectrally de-emphasised; 3. the signal was converted from volts to Pascals using the hydrophone sensitivity and amplifier gain contained in the data’s header block; 4. the signal was high pass filtered at 10 Hz to remove any low frequency hydrodynamic noise due to the passage of waves; 5. the levels of sound were calculated in dB re 1 mPa, either as peak level and impulse level for impulsive sounds, such as piling, or as sound power spectra for continuous noise, such as drilling; 6. the dBht levels were calculated for selected species of fish and marine mammals; 7. time history files, with levels scaled to dB re 1 ?? Pa, and power spectral density files were created. Also, sound files (*.wav files) were created. Each of these records was inspected for quality. Records were checked visually using the time history to check for transients or other spurious data. The spectra were checked for tonal noise, such as 50 Hz mains noise, depth finder or sonar transmissions. Finally, every recording was listened to for spurious noises. Data which passed the quality checks and were processed were stored for further use. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Research |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Research and Development Activity | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Fish behaviour | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Fish | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Acoustic noise in the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Birds, mammals and reptiles | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Sedimentary structure | |
| 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 | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 60.767202863875 |
| East | The eastern-most limit of the data resource in decimal degrees | 2.68743327034 |
| South | The southern-most limit of the data resource in decimal degrees | 49.039998103786 |
| West | The western-most limit of the data resource in decimal degrees | -9.3331285579078 |
| 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 | |
| Delivery point | Medina Chambers, Town Quay, 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 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 | |
| Country | United Kingdom | |
| enquiries@thecrownestate.co.uk | ||
| URL | http://www.thecrownestate.co.uk | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Subacoustech Ltd. | |
| Phone | +44 (0)1489 891849 | |
| Fax | +44 (0)8700 513060 | |
| Delivery point | Chase Mill, Winchester Road, Bishops Waltham | |
| Postal code | SO32 1AH | |
| City | Southampton | |
| subacoustech@subacoustech.com | ||
| URL | www.subacoustech.com | |
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk/details/277/summary |
| Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk | |
| Dataset constraints | ||
| 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. | no conditions apply |
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | |
| 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. | 2007-10-01 |
| Date of creation | The date that the resource was created. | 2007-01-01 |
| 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. | 2018-04-05 |
| 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 | Version 2.3.5 |