Articles | Volume 8, issue 3
Research article
10 Aug 2020
Research article |  | 10 Aug 2020

Scale breaks of suspended sediment rating in large rivers in Germany induced by organic matter

Thomas O. Hoffmann, Yannik Baulig, Helmut Fischer, and Jan Blöthe

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Cited articles

Aich, V., Zimmermann, A., and Elsenbeer, H.: Quantification and interpretation of suspended-sediment discharge hysteresis patterns: How much data do we need?, Catena, 122, 120–129, 2014. 
Asselmann, N.: Fitting and interpretation of sediment rating curves, J. Hydrol., 234, 228–248, 2000. 
Baartman, J. E. M., Masselink, R., Keesstra, S. D., and Temme, A. J. A. M.: Linking landscape morphological complexity and sediment connectivity, Earth Surf. Proc. Land., 38, 1457–1471, 2013. 
Bracken, L. J., Wainwright, J., Ali, G. A., Tetzlaff, D., Smith, M. W., Reaney, S. M., and Roy, A. G.: Concepts of hydrological connectivity: Research approaches, pathways and future agendas, Earth-Sci. Rev., 119, 17–34, 2013. 
Cleveland, W. S.: Robust Locally Weighted Regression and Smoothing Scatterplots, J. Am. Stat. Assoc., 74, 829–836, 1979. 
Short summary
We study the dynamics of suspended matter and associated nutrients in large rivers in Germany. The relationship between suspended sediment concentration and discharge is diagnostic of the processes and sources of suspended matter. We show that suspended matter originates from organic growth within the river at low flow and from soil erosion at high flow. In a warmer climate with increased frequency of droughts, low flow states are likely to be more prolonged, affecting the behavior of rivers.