文章基本信息

标题：ASPECTS REGARDING THE SIGNIFIANCE OF THE CURVATURE TYPES AND VALUES IN THE STUDIES OF GEOMORPHOMETRY ASSISTED BY GIS
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作者：Lucian BLAGA ; Lucian BLAGA
期刊名称：Analele Universităţii din Oradea: Seria Geografie
印刷版ISSN：1221-1273
电子版ISSN：2065-3409
出版年度：2012
卷号：22
期号：2
页码：327-337
语种：English
出版社：University of Oradea Publishing House
摘要：The curvature of the terrestrial surface enters into the category of primary parameters, directly derived, on the strenght of the altimetric values stored up in the grid type elevation structures. Geomorphological, it indicates the changing rate of the slope or of the orientation per unit lenght, in the XY plan. There are many types of curvatures, but in the more important morphometric analyses they are the following: profile curvature, plan curvature, tangential curvature, longitudinal curvature, transverse curvature, maximum curvature, minimum curvature, medial curvature, general curvature. This article aims at highlighting the differentiations that appear in the qualitative interpretation, in a geomorphologic sense, the results of the processing curvatures’ varieties in a series of GIS type programmes. At the same time, we had as our goal, the identification of the causes for these interpretative disparities, causes that are found in the mathematical apparatus used at the elaboration of the algorithms for extracting the curvature values and in the ambiguities concerning their definition.
关键词：curvature; geomorphology; morphometry; GIS