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Estimating slope from raster data : A test of eight different algorithms in flat, undulating and steep terrain

Tang, J. LU orcid and Pilesjö, P. LU (2011) 6th International Conference on River Basin Management including all aspects of Hydrology, Ecology, Environmental Management, Flood Plains and wetlands, RM 2011 In Transactions on Ecology and the Environment 146. p.143-154
Abstract

Eight frequently used slope algorithms based on a DEM (Digital Elevation Model) have been compared in flat, gently sloping/undulating, and steep terrain in order to investigate differences in estimated results. The matter of scale/resolution has not been considered, and the focus has not been on comparing the estimates with "ground truth" data but on comparisons between the different algorithms. Pair-wise statistical tests have been carried out to detect significant differences between the methods in general, and also between different terrains. In this way, we make explanations and recommendations regarding these differences and "best practice" depending on data/terrain.

Please use this url to cite or link to this publication:
author
and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Algorithm, Dem, Slope, Terrain
host publication
River Basin Management VI
series title
Transactions on Ecology and the Environment
editor
Brebbia, C.A.
volume
146
pages
12 pages
publisher
WIT Press
conference name
6th International Conference on River Basin Management including all aspects of Hydrology, Ecology, Environmental Management, Flood Plains and wetlands, RM 2011
conference location
Riverside, CA, United States
conference dates
2011-05-25 - 2011-05-27
external identifiers
  • scopus:84865539032
ISSN
1743-3541
ISBN
9781845645168
DOI
10.2495/RM110131
language
English
LU publication?
yes
id
efebc64d-05d4-4b7f-9581-4abf5948e525
date added to LUP
2022-03-25 13:05:43
date last changed
2022-03-31 02:30:45
@inproceedings{efebc64d-05d4-4b7f-9581-4abf5948e525,
  abstract     = {{<p>Eight frequently used slope algorithms based on a DEM (Digital Elevation Model) have been compared in flat, gently sloping/undulating, and steep terrain in order to investigate differences in estimated results. The matter of scale/resolution has not been considered, and the focus has not been on comparing the estimates with "ground truth" data but on comparisons between the different algorithms. Pair-wise statistical tests have been carried out to detect significant differences between the methods in general, and also between different terrains. In this way, we make explanations and recommendations regarding these differences and "best practice" depending on data/terrain.</p>}},
  author       = {{Tang, J. and Pilesjö, P.}},
  booktitle    = {{River Basin Management VI}},
  editor       = {{Brebbia, C.A.}},
  isbn         = {{9781845645168}},
  issn         = {{1743-3541}},
  keywords     = {{Algorithm; Dem; Slope; Terrain}},
  language     = {{eng}},
  pages        = {{143--154}},
  publisher    = {{WIT Press}},
  series       = {{Transactions on Ecology and the Environment}},
  title        = {{Estimating slope from raster data : A test of eight different algorithms in flat, undulating and steep terrain}},
  url          = {{http://dx.doi.org/10.2495/RM110131}},
  doi          = {{10.2495/RM110131}},
  volume       = {{146}},
  year         = {{2011}},
}