Journal of Geographical Sciences ›› 2017, Vol. 27 ›› Issue (8): 981-998.doi: 10.1007/s11442-017-1416-2

• Orginal Article • Previous Articles     Next Articles

Morphometric and geological conditions for sediment accumulation in the Udava River, Outer Carpathians, Slovakia

Dušan BARABAS1(), Ján BÓNA2, Daniel KLEIN3, Lenka BALÁŽOVIČOVÁ4   

  1. 1. Pavol Jozef Šafárik University, Institute of Geography, Faculty of Science, Jesenná
    2. Kpt. Jaroša 13, 040 22 Košice, Slovakia;
    3. Pavol Jozef Šafárik University, Institute of Mathematics, Faculty of Science, Jesenná
    4. Matej Bel University, Institute of Geography and Geology, Faculty of Natural Sciences, Tajovského 40, 974 01 Banská Bystrica, Slovakia;
  • Received:2016-10-11 Accepted:2017-02-24 Online:2017-08-31 Published:2017-08-31
  • About author:

    Author: BARABAS Dušan, dusbarabas@gmail.com

Abstract:

The accumulation of sediment in river channels is a phenomenon that is not only influenced by the channel morphology, but also by the physical and geographical characteristics and the endogenous and exogenous processes taking place in the catchment. This paper presents an analysis of the impact the changes in lithological conditions have on the morphological and morphometric parameters of the Udava River channel and their relation to the channel accumulation forms representative of the river’s longitudinal profile as well as of its planform. Results document when accumulation forms occur and what is their spatial distribution within the longitudinal and cross-sectional river profiles. More resistant structures created sections with a lower degree of sedimentation, while in depression segments the degree of sedimentation was higher. With the increase in longitudinal slope, the impact of channel width on the average channel bar size increased. Also a difference in the accumulation was observed between the left and right bank which could be possibly explained by the impact of Coriolis force.

Key words: Flysch Carpathians, Udava River, river channel, channel bar, accumulation, longitudinal profile