Journal cover Journal topic
Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
doi:10.5194/hess-2016-255
© Author(s) 2016. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
15 Jun 2016
Review status
A revision of this discussion paper was accepted for the journal Hydrology and Earth System Sciences (HESS) and is expected to appear here in due course.
A Synthesis of Space-time Variability in Multi-Component Flood Response
Yiwen Mei, Xinyi Shen, and Emmanouil N. Anagnostou Civil and Environmental Engineering, University of Connecticut, Storrs, CT, USA
Abstract. Catchment flood response consists of multiple components of flow generated by the heterogeneity of catchment surface. This study proposes an analytical framework built upon the Viglione et al. (2010a) to assess the dependence of catchment flood response on different flow components. The analytical framework is compared to simulations from a distributed hydrologic model. A large number of rainfall-runoff events from three catchments of Tar River basin in North Carolina are used to illustrate the analytical framework. Specifically, the framework is used to estimate three flood events characteristics (cumulative runoff volume, centroid and spreadness of hydrograph) through three corresponding framework parameters: the rainfall excess and the mean and variance of catchment response time. Results show that under the smooth topographic setups of the study area, the spatial and/or temporal correlation between rainfall and runoff generation are insignificant to flood response; delay in flood response due to runoff generation and routing are of equal importance; the shape of flood is mainly controlled by the variability in runoff generation stage but with non-negligible contribution from the runoff routing stage. Sensitivity tests show that the framework's main error source is the systematic underestimation of flood event's centroid and spreadness, while the random error is relatively low.

Citation: Mei, Y., Shen, X., and Anagnostou, E. N.: A Synthesis of Space-time Variability in Multi-Component Flood Response, Hydrol. Earth Syst. Sci. Discuss., doi:10.5194/hess-2016-255, in review, 2016.
Yiwen Mei et al.
Interactive discussionStatus: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version      Supplement - Supplement
 
RC1: 'Nice and elegant framework but...', Anonymous Referee #1, 15 Jul 2016 Printer-friendly Version 
 
AC1: 'Reply to Referee #1 comments', Emmanouil Anagnostou, 27 Jul 2016 Printer-friendly Version Supplement 
 
RC2: 'RE', Anonymous Referee #2, 13 Oct 2016 Printer-friendly Version Supplement 
AC2: 'Reply to Reviewer 2', Emmanouil Anagnostou, 19 Oct 2016 Printer-friendly Version Supplement 
Yiwen Mei et al.
Yiwen Mei et al.

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