Open AccessThe Southwest Indian Ocean Bathymetric Compilation (swIOBC)
Author(s) -
Dorschel B.,
Jensen L.,
Arndt J. E.,
Brummer G.J.,
de Haas H.,
Fielies A.,
Franke D.,
Jokat W.,
Krocker R.,
Kroon D.,
Pätzold J.,
Schneider R. R.,
Spieß V.,
Stollhofen H.,
UenzelmannNeben G.,
Watkeys M.,
Wiles E.
Publication year - 2018
Publication title -
geochemistry, geophysics, geosystems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.928
H-Index - 136
ISSN - 1525-2027
DOI - 10.1002/2017gc007274
Subject(s) - bathymetry , geology , bathymetric chart , structural basin , seabed , oceanography , current (fluid) , channel (broadcasting) , remote sensing , paleontology , computer science , computer network
We present a comprehensive regional bathymetric data compilation for the southwest Indian Ocean (swIOBC) covering the area from 4°S to 40°S and 20°E to 45°E with a spatial resolution of 250 m. For this, we used multibeam and singlebeam data as well as data from global bathymetric data compilations. We generated the swIOBC using an iterative approach of manual data cleaning and gridding, accounting for different data qualities and seamless integration of all different kinds of data. In comparison to existing bathymetric charts of this region, the new swIOBC benefits from nearly four times as many data‐constrained grid cells and a higher resolution, and thus reveals formerly unseen seabed features. In the central Mozambique Basin a surprising variety of landscapes were discovered. They document a deep reaching influence of the Mozambique Current eddies. Details of the N‐S trending Zambezi Channel could be imaged in the central Mozambique Basin.