High-resolution bathymetry map (15-m grid) of a segment of the SWIR provided by MBES data acquired during the 2021 SWINGS marine expedition on the Marion Dufresne vessel

Other

A MBES acoustic coverage of the PE-1 segment of the SWIR (South West Indian Ridge), more specifically in the vicinity of the dredge 5 location of the SWIFT cruise (2001), was carried out during the SWINGS cruise (https://doi.org/10.17600/18001925) with the French research vessel Marion Dufresne in 2021. SWINGS data were acquired with the hull-mounted multibeam echosounder Kongsberg EM122 12 kHz using an optimised configuration for bathymetry data collection: vessel speed of 5 knots, dual swath, CW signal and an angular opening of 120°. Acoustic data were processed with GLOBE software (https://doi.org/10.17882/70460) to provide a high-resolution bathymetry map (grid resolution of 15 m).

Data and resources

Processed data

Bathymetry map in netcdf4 format - 19 MB

application/x-netcdf Open
Processed data

Bathymetry map elevation layer geotiff - 6 MB

TIFF Open
Quality controlled data

Bathymetry map backscatter layer geotiff - 6 MB

TIFF Open
DOI of the product

HTML Open
Seanoe

HTML Open

Additional information

Date (publication)	2021-02-01
Date (revision)	2024-06-06
Status	onGoing
Update frequency	asNeeded
Metadata language	en
License	CC-BY (Creative Commons - Attribution)
Source metadata	ISO 19115 XML
Last updated	2026-11-04
Created	2026-11-04
API	package_show