Mots-clés
Analyse discriminante ; Analyse spatiale ; Classification ; Déflation éolienne ; Géomorphométrie ; Modèle ; Montagne ; Périglaciaire ; Régolithe ; Sol figuré ; Sudety ; Tchèque république ; Zone froideAeolian deflation ; Classification ; Cold area ; Czech Republic ; Discriminant analysis ; Geomorphometry ; Model ; Mountain ; Patterned ground ; Periglacial features ; Regolith ; Spatial analysis ; SudetyAnálisis discriminante ; Análisis espacial ; Clasificación ; Deflación eólica ; Geomorfometría ; Modelo ; Montaña ; Periglaciar ; Regolito ; Suelo figurado ; Zona fríaClassification of patterned ground based on morphometry and site characteristics : a case study from the High Sudetes, Central Europe
Auteur(s) et Affiliation(s)
TREML, V.
Fac. of Science, Dep. of Physical Geography and Geoecology, Charles Univ., Prague, Tcheque, Republique
KRIZEK, M.
Fac. of Science, Dep. of Physical Geography and Geoecology, Charles Univ., Prague, Tcheque, Republique
ENGEL, Z.
Fac. of Science, Dep. of Physical Geography and Geoecology, Charles Univ., Prague, Tcheque, Republique
Description :
About 750 examples of patterned ground forms at 25 sites in the High Sudetes mountains (Czech Republic) were classified using morphometric characteristics and environmental parameters. Simple parameters such as length, width and height of patterned ground were measured in the field, with additional variables of elevation, intensity of deflation and regolith grain size. The surface morphometry of patterned ground, comprising relict sorted polygons and sorted nets and active earth hummocks, was strongly influenced by site characteristics. For sorted polygons, opposite relations concerning diameter and regolith coarseness were observed. The use of both morphometric and environmental variables within canonical linear discriminant analysis was successful in classifying almost 95 per cent of landforms.
Type de document :
Article de périodique
Source :
Permafrost and periglacial processes, issn : 1045-6740, 2010, vol. 21, n°. 1, p. 67-77, nombre de pages : 11, Références bibliographiques : 2 p.
Date :
2010
Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)