Long-term erosion of the Nepal Himalayas by bedrock landsliding: the role of monsoons, earthquakes  and giant landslides

Marc, Odin; Behling, Robert; Andermann, Christoff; Turowski, Jens M.; Illien, Luc; Roessner, Sigrid; Hovius, Niels

doi:https://doi.org/10.5194/esurf-7-107-2019

Articles | Volume 7, issue 1

https://doi.org/10.5194/esurf-7-107-2019

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

https://doi.org/10.5194/esurf-7-107-2019

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

Articles | Volume 7, issue 1

Research article

| Highlight paper

|

25 Jan 2019

Research article | Highlight paper |

| 25 Jan 2019

Long-term erosion of the Nepal Himalayas by bedrock landsliding: the role of monsoons, earthquakes and giant landslides

Odin Marc, Robert Behling, Christoff Andermann, Jens M. Turowski, Luc Illien, Sigrid Roessner, and Niels Hovius

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Final revised paper (published on 25 Jan 2019)
Supplement to the final revised paper
Preprint (discussion started on 21 Sep 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 of Odin et al. by Manny Gabet', Emmanuel Gabet, 20 Oct 2018
- AC1: 'Preliminary answer to Manny Gabet Review', Odin Marc, 23 Oct 2018
RC2: 'Review of Marc et al. ms', Anonymous Referee #2, 26 Oct 2018
- AC2: 'Short Reply to Referee 2 comments', Odin Marc, 08 Dec 2018

Peer-review completion

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

AR by Odin Marc on behalf of the Authors (08 Dec 2018) Author's response Manuscript

ED: Publish as is (30 Dec 2018) by Xuanmei Fan

ED: Publish as is (04 Jan 2019) by Tom Coulthard (Editor)

AR by Odin Marc on behalf of the Authors (10 Jan 2019) Author's response Manuscript

Short summary

We mapped eight monsoon-related (> 100 m²) and large (> 0.1 km²) landslides in the Nepal Himalayas since 1970. Adding inventories of Holocene landslides, giant landslides (> 1 km³), and landslides from the 2015 Gorkha earthquake, we constrain the size–frequency distribution of monsoon- and earthquake-induced landslides. Both contribute ~50 % to a long-term (> 10 kyr) total erosion of ~2 mm yr^-1, matching the long-term exhumation rate. Large landslides rarer than ¹⁰Be sampling time drive erosion.