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Metadata: European Experimentally Validated Models for Acoustic Channels (EEVMAC) acoustic data from Loch Ness (UK) and the Gulf of Lions (Mediterranean) (1995)
Abstract:
The data set comprises acoustic and associated environmental data from multi-parameter underwater acoustic experiments undertaken in the Gulf of Lions, N.W. Mediterranean and Loch Ness, Scotland. Measurements were made over the period 30 January 1995 to 22 September 1995. Of primary interest were shallow water (10-200m), medium range (1-10km) channels at communication frequencies in the 10-100kHz range. Modulation techniques used include: Carrier Wave, ASK, PSK, FSK, Multi-ASK, Multi-PSK and Multi-FSK. Multi-parameter underwater acoustic experiments were carried out under high level control and in total more than 36 Gigabytes of acoustic and associated environmental data were gathered. Experiments were carried out at medium depth (50-100m) in the Gulf of Lions and deeper water (50-200m) in Loch Ness, and the data were stored on a series of CD-ROMs. A suite of tests was performed over set ranges (1km, 7km, etc.). In general, each range was contained on a set of three CD-ROMs which specifically referred to individual parameters set for that particular range (e.g. location, gain levels, projector and hydrophone depths). Alongside the data recordings, the IRIG 'B' time signal was also recorded during all experiments to allow derivation of precise timings of all signal transmissions and receptions. This information is also contained on the CD-ROMs. Associated environmental parameters were recorded and documented. These data were collected using CTD profilers, thermistor chains, tide gauges, current flow meters and an ORETECH Weatherpak-400. The raw data were logged in an ASCII format on a DAT cartridge. The primary aim of EEVMAC (European Experimentally Validated Models for Acoustic Channels) was the generation of signals and the recording of data for propagation model validation in connection with the characterisation of underwater acoustic channels. Data were collected by researchers from Heriot-Watt University, UK and the Laboratoire de Physique et Chimie Marines (LPCM), France. The British Oceanographic Data Centre holds 19 Gigabytes of edited data on CD-ROM, along with copies of the raw environmental data. Further details on the environmental data can be sought from Laboratoire d’Oceanographie de Villefranche, formerly LPCM.
Data holder:
British Oceanographic Data Centre
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Use constraints:
Data are freely available for use in teaching and research, providing due acknowledgment in any publication produced, following agreement to the terms and conditions of the British Oceanographic Data Centre Data Licence. The licence terms and conditions are available via https://www.bodc.ac.uk/data/documents/nodb/267795/
Other details | ||
Internal code | Internally assigned metadata identifier | 1661 |
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. | European Experimentally Validated Models for Acoustic Channels (EEVMAC) acoustic data from Loch Ness (UK) and the Gulf of Lions (Mediterranean) (1995) |
Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | British Oceanographic Data Centre record 1048113 |
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. | 6f9bd3632ae35a74b8ab2221b83b0ff7 |
Resource Identifier | This is the code assigned by the data owner. | EDMED228 |
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. | dataset |
Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 1995 |
End date | This describes the date the resource ends. This may only be the year if month and day are not known | 1995 |
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'. | asNeeded |
Abstract | The abstract provides a clear and brief statement of the content of the resource. | The data set comprises acoustic and associated environmental data from multi-parameter underwater acoustic experiments undertaken in the Gulf of Lions, N.W. Mediterranean and Loch Ness, Scotland. Measurements were made over the period 30 January 1995 to 22 September 1995. Of primary interest were shallow water (10-200m), medium range (1-10km) channels at communication frequencies in the 10-100kHz range. Modulation techniques used include: Carrier Wave, ASK, PSK, FSK, Multi-ASK, Multi-PSK and Multi-FSK. Multi-parameter underwater acoustic experiments were carried out under high level control and in total more than 36 Gigabytes of acoustic and associated environmental data were gathered. Experiments were carried out at medium depth (50-100m) in the Gulf of Lions and deeper water (50-200m) in Loch Ness, and the data were stored on a series of CD-ROMs. A suite of tests was performed over set ranges (1km, 7km, etc.). In general, each range was contained on a set of three CD-ROMs which specifically referred to individual parameters set for that particular range (e.g. location, gain levels, projector and hydrophone depths). Alongside the data recordings, the IRIG 'B' time signal was also recorded during all experiments to allow derivation of precise timings of all signal transmissions and receptions. This information is also contained on the CD-ROMs. Associated environmental parameters were recorded and documented. These data were collected using CTD profilers, thermistor chains, tide gauges, current flow meters and an ORETECH Weatherpak-400. The raw data were logged in an ASCII format on a DAT cartridge. The primary aim of EEVMAC (European Experimentally Validated Models for Acoustic Channels) was the generation of signals and the recording of data for propagation model validation in connection with the characterisation of underwater acoustic channels. Data were collected by researchers from Heriot-Watt University, UK and the Laboratoire de Physique et Chimie Marines (LPCM), France. The British Oceanographic Data Centre holds 19 Gigabytes of edited data on CD-ROM, along with copies of the raw environmental data. Further details on the environmental data can be sought from Laboratoire d’Oceanographie de Villefranche, formerly LPCM. |
Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Instrument(s) used to collect data: sea level recorders; current meters; hydrophones; acoustic backscatter sensors; CTD; thermistor chains. |
Related keywords | ||
Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Sediment acoustics |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Vertical velocity of the water column (currents) | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Horizontal velocity of the water column (currents) | |
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 | Salinity of the water column | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Temperature of the water column | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Electrical conductivity of the water column | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Acoustic backscatter in the water column | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | unknown | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Natural Environment Research Council Designated Data Centres | |
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 | Geology | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Oceanographic geographical features | |
Geographical coverage | ||
North | The northern-most limit of the data resource in decimal degrees | 60 |
East | The eastern-most limit of the data resource in decimal degrees | 15 |
South | The southern-most limit of the data resource in decimal degrees | 35 |
West | The western-most limit of the data resource in decimal degrees | -10 |
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 | British Oceanographic Data Centre | |
Individual name | Polly Hadžiabdic | |
Position name | Head of the BODC Requests Team | |
Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
Postal code | L3 5DA | |
City | Liverpool | |
Administrative area | Merseyside | |
Country | United Kingdom | |
URL | http://www.bodc.ac.uk/ | |
Role | The distributor is the person or organisation that distributes the resource. | distributor |
Organisation name | British Oceanographic Data Centre | |
Position name | Director | |
Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
Postal code | L3 5DA | |
City | Liverpool | |
Administrative area | Merseyside | |
Country | United Kingdom | |
URL | http://www.bodc.ac.uk/ | |
Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
Organisation name | Heriot-Watt University, Ocean Systems Laboratory | |
Individual name | Unknown | |
Position name | Unknown | |
Delivery point | Department of Computing and Electrical Engineering,, Riccarton Campus | |
Postal code | EH14 4AS | |
City | Edinburgh | |
Country | United Kingdom | |
URL | http://www.cee.hw.ac.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 | British Oceanographic Data Centre | |
Position name | Director | |
Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
Postal code | L3 5DA | |
City | Liverpool | |
Administrative area | Merseyside | |
Country | United Kingdom | |
URL | http://www.bodc.ac.uk/ | |
Dataset constraints | ||
20 Limitations on Public Access - Access constraints | restricted | |
20 Limitations on Public Access - Other constraints | This states any limitations on access to the data and uses free text. | Data are freely available for use in teaching and research, providing due acknowledgment in any publication produced, following agreement to the terms and conditions of the British Oceanographic Data Centre Data Licence. The licence terms and conditions are available via https://www.bodc.ac.uk/data/documents/nodb/267795/ |
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. | Usage restrictions are specified in the terms of the licence |
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. | 2017-10-03 |
Date of last revision | The most recent date that the resource was revised. | 2010-09-30 |
Date of creation | The date that the resource was created. | 2010-09-30 |
Harvest date | The date which this record has been (re)harvested from the provider. | 2024-04-21 |
Metadata date | The date when the content of this metadata record was last updated. | 2018-02-06 |
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 2.3.8 |