Analysis of the sediment transport on the Upper Drau and Isel
Abstract
As part of the Austrian suspended sediment monitoring network, two monitoring stations are operated in East Tyrol, in Lienz at the river Isel and in Lienz at the river Drau, and one in Carinthia at the river Drau in Dellach. At these monitoring stations, the suspended sediment loads have been recorded since 2008 and 2009, respectively. In addition, the bedload transport is measured at the three monitoring stations within the framework of research projects performed by IWA/BOKU. During the processing of the suspended sediment data of the last years for the publication of the Hydrographic Yearbook it was found that at the Dellach/Drau monitoring station the suspended sediment load is regularly lower than the sum of the two upstream monitoring stations at the river Drau and the river Isel in Lienz. Possible explanations for this will be investigated within the scope of this research project. Due to the different gradients and flow conditions at the monitoring stations, a possible explanation for this could be the change in the grain sizes transported as suspended matter or as bed load. The sand content plays a particularly important role in this respect. Furthermore, the transition area between suspended matter and bed load might be insufficiently measured due to the nozzle intake respectively mesh sizes of the measuring instruments used for suspended matter and bed load measurement.
suspended sediment bedload monitoring sediment transport
Publikationen
Project staff
Marlene Haimann
Dipl.-Ing. Marlene Haimann
marlene.haimann@boku.ac.at
Tel: +43 1 47654-81936
Project Leader
01.11.2020 - 30.06.2022
Philipp Gmeiner
Dipl.-Ing. Philipp Gmeiner
philipp.gmeiner@boku.ac.at
Tel: +43 1 47654-81917
Project Staff
01.11.2020 - 30.06.2022
Helmut Habersack
Univ.Prof. Dipl.-Ing. Dr.nat.techn. Dr.h.c. Helmut Habersack
helmut.habersack@boku.ac.at
Tel: +43 1 47654-81901, 81911
Project Staff
01.11.2020 - 30.06.2022
Michael Krapesch
Dipl.-Ing. Michael Krapesch
michael.krapesch@boku.ac.at
Tel: +43 1 47654-81915
Project Staff
01.11.2020 - 30.06.2022
Rolf Rindler
Dipl.-Ing. Rolf Rindler
rolf.rindler@boku.ac.at
Tel: +43 1 47654-81926
Project Staff
01.11.2020 - 30.06.2022
Sabrina Schwarz
Dipl.-Ing. Sabrina Schwarz B.Sc.
sabrina.schwarz@boku.ac.at
Tel: +43 1 47654-81927
Project Staff
01.11.2020 - 30.06.2022