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  • We present a new bathymetric compilation around Ascension Island here defined by the following bounding box: 14.57 to 14.17 W, 8.12 to 7.75 S. This bathymetry grid was compiled from a variety of multibeam swath bathymetry data acquired during 4 different cruises (see lineage). The data is available as a grid of approximately 50 m resolution in two different formats: a GMT-compatible (2-D) NetCDF and Arc/Info and ArcView ASCII grid format using geographic coordinates on the WGS84 datum. Funding was provided by NERC grants NE/J023051/1 and NE/J020303/1