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

Journal

Geochemistry Geophysics Geosystems American Geophysical Union (AGU)

Publisher: Blackwell Publishing Ltd

DOI: 10.1002/2017GC007274

Abstract

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.

Authors with CRIS profile

Harald Stollhofen Lehrstuhl für Geologie (Exogene Dynamik)

Related research project(s)

Interpretation der Reflexionsseismik (PAGE4) SO231 - PAGE FOUR Leg1: Der passive und der gescherte Kontinentrand vor Mosambik Jan. 1, 2014 - Aug. 28, 2016

Involved external institutions

University of KwaZulu-Natal (UKZN)

South Africa (ZA) Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung (AWI)

Germany (DE) Christian-Albrechts-Universität zu Kiel

Germany (DE) Universität Bremen

Germany (DE) University of Edinburgh

United Kingdom (GB) Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)

Germany (DE) Petroleum Agency South Africa

South Africa (ZA) Universiteit Utrecht (UU) / Utrecht University

Netherlands (NL)

How to cite

APA:

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. https://doi.org/10.1002/2017GC007274

MLA:

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

BibTeX: Download