A global delta dataset and the environmental variables that predict delta formation on marine coastlines

Caldwell, Rebecca L.; Edmonds, Douglas A.; Baumgardner, Sarah; Paola, Chris; Roy, Samapriya; Nienhuis, Jaap H.

doi:https://doi.org/10.5194/esurf-7-773-2019

Articles | Volume 7, issue 3

Earth Surf. Dynam., 7, 773–787, 2019

https://doi.org/10.5194/esurf-7-773-2019

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

Earth Surf. Dynam., 7, 773–787, 2019

https://doi.org/10.5194/esurf-7-773-2019

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

Articles | Volume 7, issue 3

Research article 26 Aug 2019

Research article | 26 Aug 2019

A global delta dataset and the environmental variables that predict delta formation on marine coastlines

Rebecca L. Caldwell et al.

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Final revised paper (published on 26 Aug 2019)
Supplement to the final revised paper
Preprint (discussion started on 20 Mar 2019)
Supplement to the preprint

Interactive discussion

Status: closed

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

- Printer-friendly version

- Supplement

RC1: 'delta formation', Janok Bhattacharya, 09 Apr 2019
- AC1: 'Response to Reviewer 1', Douglas Edmonds, 27 Jun 2019
RC2: 'comment on “A global delta dataset and the environmental variables that predict delta formation”', Jinyu Zhang, 03 May 2019
- AC2: 'Response to Reviewer 2', Douglas Edmonds, 27 Jun 2019
RC3: 'review of Caldwell et al.', Anonymous Referee #3, 09 May 2019
- AC3: 'Response to Reviewer 3', Douglas Edmonds, 27 Jun 2019

Peer-review completion

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

AR by Douglas Edmonds on behalf of the Authors (27 Jun 2019) Author's response Manuscript

ED: Publish as is (22 Jul 2019) by Sebastien Castelltort

ED: Publish as is (01 Aug 2019) by Niels Hovius(Editor)

Short summary

River deltas are valuable resources that support biodiversity and human habitation. Despite this we do not have a global census of deltas nor do we know the conditions that promote their formation. We surveyed 5399 river mouths greater than 50 m wide and found that 2174 (40 %) create a delta. The conditions that lead to delta formation are high sediment input and low wave and tide conditions. These results can be used to understand how deltas will adapt to environmental changes.