Journal cover Journal topic
Earth Surface Dynamics An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 3.928 IF 3.928
  • IF 5-year value: 3.864 IF 5-year
    3.864
  • CiteScore value: 6.2 CiteScore
    6.2
  • SNIP value: 1.469 SNIP 1.469
  • IPP value: 4.21 IPP 4.21
  • SJR value: 1.666 SJR 1.666
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 21 Scimago H
    index 21
  • h5-index value: 23 h5-index 23
Preprints
https://doi.org/10.5194/esurf-2020-84
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-2020-84
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  31 Oct 2020

31 Oct 2020

Review status
This preprint is currently under review for the journal ESurf.

Particle size dynamics in abrading pebble populations

András A. Sipos1,2, Gábor Domokos1,2, and János Török1,3 András A. Sipos et al.
  • 1MTA-BME Morphodynamics Research Group Budapest University of Technology and Economics, Műegyetem rakpart 1-3, Budapest, Hungary
  • 2Department of Materials and Structures, Budapest University of Technology and Economics, Műegyetem rakpart 1-3, Budapest, Hungary
  • 3Department of Theoretical Physics, Budapest University of Technology and Economics, Budafoki út 8, Budapest, Hungary

Abstract. Abrasion of sedimentary particles in fluvial and aeolian environments is widely associated with collisions encountered by the particle. Although the physics of abrasion is complex, purely geometric models recover the course of mass and shape evolution of individual particles in low and middle energy environments (in the absence of fragmentation) remarkably well. In this paper, utilizing results of this individual, geometric abrasion theory as a collision kernel, following techniques adopted in the statistical theory of coagulation and fragmentation, we construct the corresponding Fokker-Planck equation as the first model for the collision-driven collective mass evolution of sedimentary particles. Our model uncovers a startling fundamental feature of collective particle size dynamics: collisional abrasion may, depending on the energy level, either focus size distributions, thus enhancing the effects of size selective transport or it may act in the opposite direction by dispersing the distribution. This complex behaviour fits geological observations on mass distributions.

András A. Sipos et al.

Interactive discussion

Status: open (until 20 Dec 2020)
Status: open (until 20 Dec 2020)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement

András A. Sipos et al.

András A. Sipos et al.

Viewed

Total article views: 348 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
303 43 2 348 3 3
  • HTML: 303
  • PDF: 43
  • XML: 2
  • Total: 348
  • BibTeX: 3
  • EndNote: 3
Views and downloads (calculated since 31 Oct 2020)
Cumulative views and downloads (calculated since 31 Oct 2020)

Viewed (geographical distribution)

Total article views: 200 (including HTML, PDF, and XML) Thereof 199 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Saved

No saved metrics found.

Discussed

No discussed metrics found.
Latest update: 29 Nov 2020
Publications Copernicus
Download
Short summary
Abrasion of sedimentary particles, is widely associated with mutual collisions. Utilizing results of individual, geometric abrasion theory, and techniques adopted in statistical physics, a new model for predicting the collective mass evolution of large number of particles is introduced. Our model uncovers a startling fundamental feature of collective particle dynamics: collisional abrasion may either focus size distributions or it may act in the opposite direction by dispersing the distribution.
Abrasion of sedimentary particles, is widely associated with mutual collisions. Utilizing...
Citation