A bathymetric compilation of the Cape Darnley region, East Antarctica

• Published in: Antarctic Science
• Main Authors: Smith, Jodie, Nogi, Yoshifumi, Spinoccia, Michele, Dorschel, Boris, Leventer, Amy
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 2021
• Subjects: Geology; Ecology, Evolution, Behavior and Systematics; Oceanography; East Antarctica; Darnley; Cape Darnley; Mac.Robertson Land; Antarc*; Antarctic Science; Antarctica; Ice Sheet
• Online Access: http://dx.doi.org/10.1017/s0954102021000298; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102021000298

Abstract The Cape Darnley region in East Antarctica has been an area of scientific interest for a variety of disciplines over the last three decades. The recent acquisition of several high-resolution bathymetry datasets enabled the compilation of a detailed regional bathymetry grid. We present a high-resolution bathymetric compilation of the Cape Darnley region in East Antarctica, including areas of the Mac.Robertson Land shelf, slope and adjacent deep sea. A variety of data, single-beam and multibeam swath bathymetry and digitized depths from nautical charts were sourced from numerous institutions. The 100 m-resolution gridded bathymetric dataset improves previous bathymetric representations of the region and enables visualization of the seafloor morphology in unprecedented detail. The bathymetry grid has been constructed using a layered hierarchy approach based on the source of each dataset. This data compilation forms important baseline information for a range of scientific applications and end users including oceanographers, glacial modellers, biologists and geologists. The compilation will aid numerical modelling of ocean circulation, reconstruction of palaeo-ice streams and refinement of ice-sheet models.