A bathymetric compilation of the Cape Darnley region, East Antarctica

IF 2 4区地球科学 Q3 ENVIRONMENTAL SCIENCES

Antarctic Science Pub Date : 2021-07-09 DOI:10.1017/S0954102021000298

Jodie Smith, Y. Nogi, M. Spinoccia, B. Dorschel, A. Leventer

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引用次数: 3

Abstract

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.

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南极洲东部达恩利角地区的测深图

在过去的三十年里，东南极洲的达恩利角地区一直是各种学科感兴趣的科学领域。最近获得的几个高分辨率测深数据集使编制详细的区域测深网格成为可能。我们提出了东南极洲达恩利角地区的高分辨率测深汇编，包括麦克罗伯逊陆架，斜坡和邻近的深海区域。各种数据、单波束和多波束深度测量以及海图的数字化深度都来自众多机构。100米分辨率的网格化测深数据集改进了该地区以前的测深表示，并以前所未有的细节实现了海底形态的可视化。基于每个数据集的来源，采用分层分层的方法构建测深网格。这一数据汇编为一系列科学应用和最终用户(包括海洋学家、冰川建模者、生物学家和地质学家)提供了重要的基线信息。该汇编将有助于海洋环流的数值模拟、古冰流的重建和冰盖模型的改进。

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来源期刊

Antarctic Science 地学-地球科学综合

CiteScore

3.60

自引率

6.20%

发文量

审稿时长

3 months

期刊介绍： Antarctic Science provides a truly international forum for the broad spread of studies that increasingly characterise scientific research in the Antarctic. Whilst emphasising interdisciplinary work, the journal publishes papers from environmental management to biodiversity, from volcanoes to icebergs, and from oceanography to the upper atmosphere. No other journal covers such a wide range of Antarctic scientific studies. The journal attracts papers from all countries currently undertaking Antarctic research. It publishes both review and data papers with no limits on length, two-page short notes on technical developments and recent discoveries, and book reviews. These, together with an editorial discussing broader aspects of science, provide a rich and varied mixture of items to interest researchers in all areas of science. There are no page charges, or charges for colour, to authors publishing in the Journal. One issue each year is normally devoted to a specific theme or papers from a major meeting.