Valley Morphometry and Valley Incision Rate


Fluvial processes, one of the main actors in the development of the geomorphologic structure, are reflected most saliently by valleys in topographic surfaces. Analyses focusing on valley morphometry that present concrete and accurate data in terms of both existing geometries and formation and development processes play a significant part in explaining geomorphologic properties especially in fluvial morphogenetic regions. Unfavorable aspects such as the insufficiency of existing analysis methods in generating real values and impossibility of conducting process-based analysis have created barriers to achieve the expected success in comprehending valley morphometry. Therefore, in order to eliminate this shortcoming, this study established a methodology by identifying the problems to enlighten which parameters should be placed in what parts of the equation by citing how the parameters should be measured in order to ensure the generation of desired data on both analog and digital data bases. This methodological approach, expressed more clearly and comprehensibly with the help of illustrations and mathematical formulas, was finalized by correlating it with the elements and parameters with counterparts in the concrete field data. As a result, while it was possible to examine concrete quantities in valleys related to length, area and volume based on amount and ratio without limitations on area and section; it was also possible to present a methodological framework that allows process analysis in terms of the operations of the fluvial process and developmental course of the geo-morphological structure.


Keywords


Morphometry, morphometric indexes, valley incision.

Author : Atilla KARATAŞ
Number of pages: 709-721
DOI: http://dx.doi.org/10.29228/TurkishStudies.22773
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Turkish Studies-Social Sciences
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