Predicting the roughness length of turbulent flows over landscapes with multi-scale microtopography

Pelletier, Jon D.; Field, Jason P.

doi:https://doi.org/10.5194/esurf-4-391-2016

Articles | Volume 4, issue 2

https://doi.org/10.5194/esurf-4-391-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/esurf-4-391-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 4, issue 2

Research article

|

19 May 2016

Research article |

| 19 May 2016

Predicting the roughness length of turbulent flows over landscapes with multi-scale microtopography

Jon D. Pelletier and Jason P. Field

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Final revised paper (published on 19 May 2016)
Supplement to the final revised paper
Preprint (discussion started on 07 Oct 2015)
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

SC C418: 'Comment on "Predicting the roughness length of turbulent flows over landscapes with multi-scale microtopography"', SAFL Sediment Dynamics Group, 17 Nov 2015
RC C426: 'Referee Comment', Anonymous Referee #1, 18 Nov 2015
RC C429: 'Review of 'Predicting the roughness length of turbulent flows over landscapes with multi-scale microtopography' by J.D. Pelletier and J.P. Field', Anonymous Referee #2, 18 Nov 2015
AC C555: 'Author's reply', Jon Pelletier , 24 Dec 2015
- EC C556: 'Associate Editor comment', Eric Lajeunesse, 29 Dec 2015
AC C676: 'Changes made in revision', Jon Pelletier , 01 Mar 2016

Peer-review completion

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

AR by Jon Pelletier on behalf of the Authors (16 Feb 2016) Author's response

ED: Referee Nomination & Report Request started (21 Feb 2016) by Eric Lajeunesse

RR by Anonymous Referee #1 (13 Mar 2016)

RR by Anonymous Referee #2 (01 Apr 2016)

ED: Publish as is (01 Apr 2016) by Eric Lajeunesse

ED: Publish as is (14 Apr 2016) by Niels Hovius (Editor)

AR by Jon Pelletier on behalf of the Authors (02 May 2016) Manuscript

Short summary

The law of the wall is one of the fundamental equations at the boundary of atmospheric sciences and aeolian geomorphology. In this paper, we quantify the relationship between the key parameter of the law of the wall, i.e., the roughness length, and measures of microtopography. We propose a method for predicting the roughness length that works for landscapes with microtopography over a wide range of spatial scales. The method is tested against approximately 60 000 measurements of roughness length.