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Article

Sub-Antarctic Auckland Islands Seafloor Mapping Investigations Using Legacy Data

School of Surveying, University of Otago, 310 Castle Street, Dunedin 9016 New Zealand
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Geosciences 2019, 9(2), 56; https://doi.org/10.3390/geosciences9020056
Received: 31 December 2018 / Revised: 12 January 2019 / Accepted: 15 January 2019 / Published: 23 January 2019
(This article belongs to the Special Issue Geological Seafloor Mapping)
This paper demonstrates the richness of data collected for nautical charting and considers ways in which chart data can support scientific research, through a case study of two modern navigation surveys undertaken in the Auckland Islands. While legacy charts have coarser resolution, and may synthesize different epochs together into one final product, we examine how they may be used on their own and to complement more recent hydrographic surveys. We argue that the hydrographic and ancillary data, only a fraction of which appears on the final chart, also has scientific value and that the hydrographic surveying principles applied during data collection are equally relevant for all seabed mapping. While the benefits of full bottom coverage obtained by state of-the-art multibeam surveys are clear, there is much more to be discovered in legacy singlebeam datasets than what is displayed on the nautical chart alone. View Full-Text
Keywords: nautical chart; hydrographic survey; legacy; seabed sample; sub-Antarctic; singlebeam; multibeam nautical chart; hydrographic survey; legacy; seabed sample; sub-Antarctic; singlebeam; multibeam
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MDPI and ACS Style

Tidey, E.J.; Hulbe, C.L. Sub-Antarctic Auckland Islands Seafloor Mapping Investigations Using Legacy Data. Geosciences 2019, 9, 56. https://doi.org/10.3390/geosciences9020056

AMA Style

Tidey EJ, Hulbe CL. Sub-Antarctic Auckland Islands Seafloor Mapping Investigations Using Legacy Data. Geosciences. 2019; 9(2):56. https://doi.org/10.3390/geosciences9020056

Chicago/Turabian Style

Tidey, Emily J., and Christina L. Hulbe. 2019. "Sub-Antarctic Auckland Islands Seafloor Mapping Investigations Using Legacy Data" Geosciences 9, no. 2: 56. https://doi.org/10.3390/geosciences9020056

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