Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Creative Commons Lizenz creative commons licence
Titel (primär) Transformation of generation processes from small runoff events to large floods
Autor Tarasova, L.; Basso, S.; Merz, R.;
Journal / Serie Geophysical Research Letters
Erscheinungsjahr 2020
Department CATHYD;
Band/Volume 47
Heft 22
Sprache englisch;
POF III (gesamt) T31;
Keywords flood origins; event classification; ordinary events; annual floods; upper tail floods; process transformation
Abstract Mixture of runoff generation processes poses a challenge for predicting upper flood quantiles. We examined transformations of generation processes from all identifiable runoff events to frequent and upper tail floods for a large set of mesoscale catchments and observed a substantial change of the dominant processes. Two trajectories of transformation were detected. In regions where floods occur almost exclusively in winter the dominance of processes related to snowmelt consistently increases from small events to frequent and upper tail floods. In catchments characterized by frequent winter‐spring floods and occasional summer‐autumn flood events triggered by rare meteorological phenomena (e.g., Vb‐cyclones), processes that dominate upper tails are not adequately represented in the sample of frequent floods. Predictions of extremes and projections of flood changes might remain highly uncertain in the latter cases.
ID 23904
dauerhafte UFZ-Verlinkung
Tarasova, L., Basso, S., Merz, R. (2020):
Transformation of generation processes from small runoff events to large floods
Geophys. Res. Lett. 47 (22), e2020GL090547