EM304 multibeam data - Blackmud canyon

This dataset presents EM304 multibeam echosounder acoustic data, collected over BlackMud Canyon on the continental shelf edge in Northern Bay of Biscay. Data files include bathymetry, seabottom backscatter, and water column acoustic data in echosounder kmall format, recorded onboard R/V Thalassa during EM304 Sea Acceptance Test on 08/09/2018 and 09/09/2018. Bathymetry ranges from 200m to 4200m depth. Kmall files can be displayed and processed using e.g. the GLOBE freeware provided by Ifremer at: https://www.flotteoceanographique.fr/Nos-moyens/Logiciels-de-la-flotte/Analyse-et-traitement-de-l-information/GLOBE.
 
Citation proposal
LE BOUFFANT Naig (Ifremer, France) - BISQUAY Herve (Genavir, France) (2018) . EM304 multibeam data - Blackmud canyon. https://services.mspdata.eu:/geonetwork/srv/api/records/seanoe:78545

Simple

Date ( Publication )
2018-09-08
Date ( Revision )
2021-05-12
Other citation details
Le Bouffant Naig, Bisquay Herve (2018). EM304 multibeam data - Blackmud canyon. SEANOE. https://doi.org/10.17882/78545
Credit
EM304 deep water bathymetric multibeam echosounder installation was part of R/V Thalassa modernization project, that was co-funded by European FEDER, ANR, Brittanny Region ,and IFREMER: https://www.flotteoceanographique.fr/Nos-technologies/Grands-Projets-en-cours/Modernisation-du-N-O-Thalassa

  Author

  Author

  Publisher

Keywords ( Theme )
  • EM304 , Blackmud Canyon , Bathymetry acoustic data , Bay of Biscay , Watercolumn acoustic data , multibeam , Marine geology
ODATIS aggregation parameters and Essential Variable names ( Theme )
  • Bathymetry
SeaDataNet Parameter Disciplines ( parameter )
  • Marine geology
Type de jeux de donnée ODATIS ( Theme )
  • Observational data
Use constraints
Other restrictions
Other constraints
Association Type
Cross reference
Initiative Type
Platform
Metadata language
English
Topic category
  • Oceans
N
S
E
W


Distribution format
  • CSV ( )

  • KMALL (KONGSBERG FORMAT) ( )

OnLine resource
Cruise logbook extract - 19 KB  

Cruise logbook extract - 19 KB

OnLine resource
Raw data  

EM304 kmall data files - 16 GB

OnLine resource
DOI of the product  
OnLine resource
Seanoe  
Hierarchy level
Dataset
Statement

EM304 is a Kongsberg multibeam echosounder, working around 30kHz acoustic frequency, designed to collect bathymetric data up to 8000m depth. It provides bathymetry data, together with seabottom acoustic backscatter level and water column acoustic images. Data are collected through 512 beams within +/- 70°, with 0.5°x1° vertical beam resolution (alongtrack x acrosstrack). High Density mode extracts from the 512 beams up to 800 soundings per swath.

An extract from the cruise logbook is joined to the data that details the acquisition conditions and echosounder configuration modes. Echosounder detailed parameters can be found within the kmall files.

Metadata

File identifier
seanoe:78545   XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2021-05-12
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0

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