Measuring rates of present-day relative sea-level rise in low-elevation coastal zones: a critical evaluation

Keogh, Molly E.; Törnqvist, Torbjörn E.

doi:https://doi.org/10.5194/os-15-61-2019

Articles | Volume 15, issue 1

https://doi.org/10.5194/os-15-61-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/os-15-61-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 1

Research article

|

30 Jan 2019

Research article |

| 30 Jan 2019

Measuring rates of present-day relative sea-level rise in low-elevation coastal zones: a critical evaluation

Molly E. Keogh and Torbjörn E. Törnqvist

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Final revised paper (published on 30 Jan 2019)
Supplement to the final revised paper
Preprint (discussion started on 23 Jul 2018)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review Comments on Keogh and Tornquist', Philip Woodworth, 25 Aug 2018
- AC1: 'Response to the manuscript review by Philip Woodworth', Molly Keogh, 25 Oct 2018
RC2: 'os-2018-75 (referee) - referee comment request', Anonymous Referee #2, 20 Sep 2018
- AC2: 'Response to the manuscript review by an anonymous referee', Molly Keogh, 25 Oct 2018

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Molly Keogh on behalf of the Authors (25 Oct 2018) Author's response

ED: Referee Nomination & Report Request started (30 Nov 2018) by John M. Huthnance

RR by Anonymous Referee #2 (04 Dec 2018)

ED: Publish as is (05 Dec 2018) by John M. Huthnance

Short summary

Relative sea-level rise is traditionally measured with tide gauges, but we question the reliability of tide-gauge data in low-elevation coastal zones. Benchmark data show that tide gauges typically do not record subsidence in the shallow subsurface and thus underestimate rates of relative sea-level rise. We present an alternative method of measuring relative sea-level rise and conclude that low-elevation coastal zones may be at higher risk of flooding than previously assumed.