Articles | Volume 9, issue 4
© Author(s) 2021. This work is distributed underthe Creative Commons Attribution 4.0 License.
Controls on the grain size distribution of landslides in Taiwan: the influence of drop height, scar depth and bedrock strength
- Final revised paper (published on 17 Aug 2021)
- Supplement to the final revised paper
- Preprint (discussion started on 08 Mar 2021)
- Supplement to the preprint
Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor |
: Report abuse
RC1: 'Comment on esurf-2021-19', Mikaël Attal, 23 Mar 2021
- AC1: 'Preliminary Reply on RC1 comments', Odin Marc, 25 Mar 2021
- RC2: 'Comment on esurf-2021-19', Anonymous Referee #2, 01 Apr 2021
- AC2: 'Final answers to both reviewers', Odin Marc, 01 Jun 2021
Peer review completion
AR: Author's response | RR: Referee report | ED: Editor decision
AR by Odin Marc on behalf of the Authors (01 Jun 2021)  Author's response Author's tracked changes Manuscript
ED: Publish subject to minor revisions (review by editor) (16 Jun 2021) by Rebecca Hodge
AR by Odin Marc on behalf of the Authors (23 Jun 2021)  Author's response Author's tracked changes Manuscript
ED: Publish as is (30 Jun 2021) by Rebecca Hodge
ED: Publish subject to technical corrections (19 Jul 2021) by A. Joshua West(Editor)
Dear authors, dear editor,
I very much enjoyed reading this manuscript with presents an extraordinary dataset on the grain size distribution of landslides. Such datasets are rare, mostly due to the challenges associated with collecting such data, but they are also much needed, as there is a growing recognition that source grain size data are essential to model sediment export and the evolution of sediment characteristics along river systems, with implications for assessing sediment fluxes, the preservation of signals in the sedimentary record, and the hazards associated with sediment movement.
Overall, the authors make a compelling case on the need for such data, but also on the need for a unifying framework that can allow scientists to predict landslide grain size data without having to go and measure tens of grain size distributions in the field. The authors evaluate the models proposed by Cohen at al. (2010) and Locat et al. (2006) for regolith coarsening with depth and for fragmentation during land slide, respectively, and they find a very good agreement with their data, which is a very exciting outcome (the data in figures 4 and 5 are amazing). This finding paves the way for a better integration of sediment supply into numerical models of landscape evolution and sediment transport, although the authors acknowledge that more data would be needed to be able to fully validate / calibrate the models. These results are certainly encouraging.
The authors also address variability at the site scale, including segregation along the slide and changes in surface grain size post-deposition, as well as variation between lithology. This work is very important and I strongly support publication.
However, I have a few suggestions, which are minor as mostly based on cosmetics. Firstly, the writing and grammar need to be improved. There are quite a lot of spelling mistakes, which I have highlighted in the annotated manuscript (I recognise that some suggestions I make may just be me being pedantic, but there are still a lot of real grammar errors that need correcting), as well as sentences that could be simplified. In a few places, statements are unsubstantiated and could benefit from a better justification as to why a given approach is taken, or support from literature. There are a few minor inconsistencies too. All of these are highlighted in the annotated manuscript.
I hope the authors find these comments useful. Very exciting work!