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Archaeological and Anthropological Sciences

, Volume 11, Issue 7, pp 3647–3648 | Cite as

Correction to: Optimising protocols for high-definition imaging of historic shipwrecks using multibeam echosounder

  • Kieran WestleyEmail author
  • Ruth Plets
  • Rory Quinn
  • Chris McGonigle
  • Fabio Sacchetti
  • Mekayla Dale
  • Rory McNeary
  • Annika Clements
Correction
  • 142 Downloads
Correction to: Archaeological and Anthropological Sciences
Table 1

Acquisition settings tested over SS Polwell

Parameter

Acquisition settings test

Survey design test

Frequency

Varied: 200 kHz, 300 kHz, 400 kHz

Constant: 400 kHz

Pulse rate

Varied: 4 Hz, 8 Hz, 12 Hz

Constant: maximum (up to 50 Hz)

Angular sector (overall and port/starboard)

Varied: 40° (20°/20°), 60° (30°/30°) and (0°/60°), 80° (40°, 40°)

Varied: 110° (55°/55°), 60° (30°/30°)

Sector mode

Constant: Normal (three sectors)

Varied: Normal (three sectors), single sector (only middle sector)

Beam spacing

Constant: High Density Equidistant

Constant: High Density Equidistant

Pulse length (lower values for single sector, higher for normal sector at a given frequency)

Constant: Short CW (200 kHz = 70 μs; 300 kHz = 70 μs; 400 kHz = 50 μs)

Constant: Short CW (200 kHz = 35–70 μs; 300 kHz = 35–70 μs; 400 kHz = 25–50 μs)

Bottom detection

Varied: Normal, minimum depth and tracking

Constant: minimum depth

  https://doi.org/10.1007/s12520-019-00831-6

The original version of this article, unfortunately, contained error. Additional correction in Table 1: please delete (‘) in the second column heading was incorrectly carried out. It should read “Acquisition settings test”; by this, the author meant only to delete the apostrophe symbol. However the typesetter has deleted the entire second column heading (i.e. in the online proof it read: “Acquisition settings’ test “, but the corrected version should have read “Acquisition settings test”. Given in the article is the correct table.

The original article has been corrected.

Notes

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Geography & Environmental SciencesUlster UniversityColeraineUK
  2. 2.Marine InstituteCo. GalwayRepublic of Ireland
  3. 3.Historic Environment Division, Department for CommunitiesCauseway ExchangeBelfastUK
  4. 4.Agri-Food and Biosciences InstituteFisheries and Aquatic Ecosystems BranchBelfastUK

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