| Roughness Measure | MICRODEM, Create derivative grid | GRASS (callable from Windows command line) | SAGA | GDAL (callable from Windows command line) | WhiteBox (callable from Windows command line) | Reference |
| SSR | Sebastiano Trevisani, Giordano Teza, & Peter L. Guth. (2023). Hacking the topographic ruggedness index. https://doi.org/10.5281/zenodo.7716785 | |||||
| Roughness factor | Byproduct of SSO computations | GDAL Roughness is the largest inter-cell difference of a central pixel and its surrounding cells, as defined in Wilson et al (2007, Marine Geodesy 30:3-35). | Mark, 1975; Etzelmuller, 2000. | |||
| TPI | Option to normalize all distances | Includes multidimensional (addon, called from MICRODEM) | Yes (does not agree with MICRODEM) | Guisan, A., S. B. Weiss, A. D. Weiss 1999. GLM versus CCA spatial modeling of plant species distribution. Plant Ecology 143: 107-122 | ||
| TRI Comparison of TRI with Various Programs |
Option to normalize all distances | Allows neighborhood, distance weighting (addon, called from MICRODEM) | Yes |
Riley, S. J., S. D. DeGloria and R. Elliot
(1999). A terrain ruggedness index that quantifies topographic
heterogeneity, Intermountain Journal of Sciences, vol. 5, No. 1-4,
pp.23-27. Wilson et al (2007, Marine Geodesy 30:3-35) |
||
| Multiscale roughness | Yes | |||||
| MAD--median absolute differences | S. Trevisani, M. Rocca,2015, MAD: robust image texture analysis for applications in high resolution geomorphometry: Computers & Geosciences, Volume 81, pages 78-92, https://doi.org/10.1016/j.cageo.2015.04.003. | |||||
| Standard deviation of slope | Yes | C. H. Grohmann, M. J. Smith and C. Riccomini, "Multiscale Analysis of Topographic Surface Roughness in the Midland Valley, Scotland," in IEEE Transactions on Geoscience and Remote Sensing, vol. 49, no. 4, pp. 1200-1213, April 2011, doi: 10.1109/TGRS.2010.2053546 . | ||||
| Variogram gamma | Yes | |||||
| Rugosity | Yes | https://pubs.usgs.gov/ds/477/ | ||||
| Vector ruggedness | r.roughness.vector (addon, called from MICRODEM) |
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| Multiscale Std Dev Normals | Yes (not yet callable from MICRODEM) | JB Lindsay, DR Newman, and A Francioni. 2019 Scale-Optimized Surface Roughness for Topographic Analysis. Geosciences, 9(322) doi: 10.3390/geosciences9070322. |
Mark, 1975; Etzelmuller, 2000. RoughnessFactor := 1 - sqrt(sqr(x1sq) + sqr(y1sq) + sqr(z1sq)) / NumPts; (the three numbers are the sums of the squares of the three components (directional cosines) of the normal vector to the earth's surface) done as byproduct of SSO computations
Call routines from GRASS, GDAL, and WhiteBox from MICRODEM: Raster GIS, External tools
Last revision 2/9/2023