European Experimentally Validated Models for Acoustic Channels (EEVMAC) acoustic data from Loch Ness (UK) and the Gulf of Lions (Mediterranean) (1995)

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.

Simple

Alternate title

British Oceanographic Data Centre record 1048113
Date (Publication)
2017-10-03
Date (Creation)
2010-09-30
Date (Revision)
2010-09-30
Citation identifier
http://www.bodc.ac.uk/ / EDMED228
Point of contact
Organisation name Individual name Electronic mail address Role

Heriot-Watt University, Ocean Systems Laboratory

Unknown

d.m.lane@hw.ac.uk

Originator

British Oceanographic Data Centre

enquiries@bodc.ac.uk

Custodian
Maintenance and update frequency
As needed

SeaDataNet PDV

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Usage restrictions are specified in the terms of the licence
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Restricted
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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/

Language
English
Topic category
  • Oceans
N
S
E
W
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Begin date
1995
End date
1995
Reference system identifier
OGP / urn:ogc:def:crs:EPSG::4326
Distribution format
    Distributor contact
    Organisation name Individual name Electronic mail address Role

    British Oceanographic Data Centre

    enquiries@bodc.ac.uk

    		Distributor
    Hierarchy level
    Dataset
    Statement

    Instrument(s) used to collect data: sea level recorders; current meters; hydrophones; acoustic backscatter sensors; CTD; thermistor chains.

    Metadata

    File identifier
    6f9bd3632ae35a74b8ab2221b83b0ff7 XML
    Metadata language
    English
    Hierarchy level
    Dataset
    Date stamp
    2018-02-06T15:16:39
    Metadata standard name

    MEDIN Discovery Metadata Standard
    Metadata standard version

    Version 2.3.8
    Metadata author
    Organisation name Individual name Electronic mail address Role

    British Oceanographic Data Centre

    Polly Hadžiabdic

    enquiries@bodc.ac.uk

    		Point of contact
     
     

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