Articles | Volume 7, issue 3
https://doi.org/10.5194/esurf-7-789-2019
https://doi.org/10.5194/esurf-7-789-2019
Research article
 | 
02 Sep 2019
Research article |  | 02 Sep 2019

Percentile-based grain size distribution analysis tools (GSDtools) – estimating confidence limits and hypothesis tests for comparing two samples

Brett C. Eaton, R. Dan Moore, and Lucy G. MacKenzie

Viewed

Total article views: 3,368 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
2,001 1,256 111 3,368 113 73 66
  • HTML: 2,001
  • PDF: 1,256
  • XML: 111
  • Total: 3,368
  • Supplement: 113
  • BibTeX: 73
  • EndNote: 66
Views and downloads (calculated since 13 Feb 2019)
Cumulative views and downloads (calculated since 13 Feb 2019)

Viewed (geographical distribution)

Total article views: 3,368 (including HTML, PDF, and XML) Thereof 3,026 with geography defined and 342 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Latest update: 28 Mar 2024
Download
Short summary
Researchers studying gravel bed rivers almost always require a sample of the bed surface grain size range. These samples are typically expressed as cumulative frequency distributions. We present statistical techniques for generating and plotting confidence intervals for the various size percentiles and for determining whether size percentiles from two samples are statistically different. The techniques are implemented in an R package; a simplified version is implemented in a spreadsheet.