Lecours Vincent, Devillers Rodolphe, Simms Alvin E., Lucieer Vanessa L. et Brown Craig J.. (2017). Towards a framework for terrain attribute selection in environmental studies. Environmental Modelling & Software, 89, p. 19-30.
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URL officielle: https://doi.org/10.1016/j.envsoft.2016.11.027
Résumé
Terrain attributes (e.g. slope, rugosity) derived from digital terrain models are commonly used in environmental studies. The increasing availability of GIS tools that generate those attributes can lead users to select a sub-optimal combination of terrain attributes for their applications. Our objectives were to identify sets of terrain attributes that best capture terrain properties and to assess how they vary with surface complexity. 230 tools from 11 software packages were used to derive terrain attributes from nine surfaces of different topographic complexity levels. Covariation and independence of terrain attributes were explored using three multivariate statistical methods. Distinct groups of correlated terrain attributes were identified, and their importance in describing a surface varied with surface complexity. Terrain attributes were highly covarying and sometimes ambiguously defined within software documentation. We found that a combination of six to seven particular terrain attributes always captures more than 70% of the topographic structure of surfaces.
Type de document: | Article publié dans une revue avec comité d'évaluation |
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ISSN: | 13648152 |
Volume: | 89 |
Pages: | p. 19-30 |
Version évaluée par les pairs: | Oui |
Date: | Mars 2017 |
Nombre de pages: | 12 |
Identifiant unique: | 10.1016/j.envsoft.2016.11.027 |
Sujets: | Sciences naturelles et génie > Sciences mathématiques > Statistiques Sciences naturelles et génie > Sciences naturelles > Biologie et autres sciences connexes Sciences naturelles et génie > Sciences naturelles > Sciences de la terre (géologie, géographie) |
Département, module, service et unité de recherche: | Unités de recherche > Centre de recherche sur la Boréalie (CREB) Départements et modules > Département des sciences humaines |
Mots-clés: | bathymetry, geomorphometry, surrogacy, terrain analysis, terrain attributes, topography |
Déposé le: | 23 mai 2024 19:04 |
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Dernière modification: | 31 juill. 2024 15:42 |
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