The Southwest Indian Ocean Bathymetric Compilation (swIOBC)

Dorschel B, Jensen L, Arndt JE, Brummer GJ, de Haas H, Fielies A, Franke D, Jokat W, Krocker R, Kroon D, Pätzold J, Schneider RR, Spieß V, Stollhofen H, Uenzelmann-Neben G, Watkeys M, Wiles E (2018)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2018


Publisher: Blackwell Publishing Ltd

DOI: 10.1002/2017GC007274


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.

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Dorschel, B., Jensen, L., Arndt, J.E., Brummer, G.J., de Haas, H., Fielies, A.,... Wiles, E. (2018). The Southwest Indian Ocean Bathymetric Compilation (swIOBC). Geochemistry Geophysics Geosystems.


Dorschel, B., et al. "The Southwest Indian Ocean Bathymetric Compilation (swIOBC)." Geochemistry Geophysics Geosystems (2018).

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