A 6-year lidar survey reveals enhanced rockwall retreat and modified rockfall magnitudes/frequencies in deglaciating cirques

Hartmeyer, Ingo; Keuschnig, Markus; Delleske, Robert; Krautblatter, Michael; Lang, Andreas; Schrott, Lothar; Prasicek, Günther; Otto, Jan-Christoph

doi:https://doi.org/10.5194/esurf-8-753-2020

Articles | Volume 8, issue 3

https://doi.org/10.5194/esurf-8-753-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/esurf-8-753-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 8, issue 3

Research article

| Highlight paper

|

11 Sep 2020

Research article | Highlight paper |

| 11 Sep 2020

A 6-year lidar survey reveals enhanced rockwall retreat and modified rockfall magnitudes/frequencies in deglaciating cirques

Ingo Hartmeyer, Markus Keuschnig, Robert Delleske, Michael Krautblatter, Andreas Lang, Lothar Schrott, Günther Prasicek, and Jan-Christoph Otto

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Final revised paper (published on 11 Sep 2020)
Preprint (discussion started on 09 Mar 2020)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review', Georgina Bennett, 26 Mar 2020
- AC1: 'Author's Reply', Ingo Hartmeyer, 27 Mar 2020
- AC3: 'Point-by-point response', Ingo Hartmeyer, 19 May 2020
RC2: 'Review of Hartmeyer et al. rockfall retreat with LiDAR monitoring', Arjun Heimsath, 07 Apr 2020
- AC2: 'Author Reply', Ingo Hartmeyer, 12 Apr 2020
- AC4: 'Point-by-point response', Ingo Hartmeyer, 19 May 2020
AC5: 'Letter to reviewers and editors', Ingo Hartmeyer, 19 May 2020

Peer-review completion

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

AR by Ingo Hartmeyer on behalf of the Authors (19 May 2020) Author's response Manuscript

ED: Publish subject to technical corrections (26 Jun 2020) by Arjen Stroeven

ED: Publish subject to technical corrections (03 Jul 2020) by Niels Hovius (Editor)

AR by Ingo Hartmeyer on behalf of the Authors (11 Jul 2020) Author's response Manuscript

Short summary

Rockfall size and frequency in two deglaciating cirques in the Central Alps, Austria, is analysed based on 6-year rockwall monitoring with terrestrial lidar (2011–2017). The erosion rates derived from this dataset are very high due to a frequent occurrence of large rockfalls in freshly deglaciated areas. The results obtained are important for rockfall hazard assessments, as, in rockwalls affected by glacier retreat, historical rockfall patterns are not good predictors of future events.