Macquarie river floodplain flow modeling

Implications for ecogeomorphology

S. G Sandi Rojas, J. F. Rodríguez, P. Saco, G. Riccardi, L. Wen, N. Saintilan, H. Stenta, F. Trivisonno, P. A. Basile

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

2 Citations (Scopus)

Abstract

This work presents preliminary results of implementing a quasi-2D hydrodynamic module (VMMHH 1.0) to simulate flows and flooding patterns throughout the Macquarie Marshes, south east Australia, in order to assess habitat requirements. The model uses an interconnected cell scheme that solves mass conservation and uses simplified versions of the momentum equations to represent flow between cells. This model has been used before to assess geomorphological changes in large river flood-plains and vegetation evolution in estuarine wetlands, showing results consistent with cases of gradual floodplain inundation following overbank flow. The simplified characteristics of the quasi-2D model allow for an adequate representation of hydrodynamic processes with similar performance of other higher dimensional models. Model results and computational times are compared with outputs from a conventional 1D/2D model (MIKE FLOOD) applied to the same domain showing that the VMMHH 1.0 is adequate for representation of floods in the Macquarie Marshes.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2014
EditorsAnton J. Schleiss, Giovanni de Cesare, Mario J. Franca, Michael Pfister
Place of PublicationBoca Raton, FL
PublisherCRC Press/Balkema
Pages2347-2355
Number of pages9
ISBN (Print)9781138026742
Publication statusPublished - 2014
Externally publishedYes
Event7th International Conference on Fluvial Hydraulics, RIVER FLOW 2014 - Lausanne, Switzerland
Duration: 3 Sep 20145 Sep 2014

Other

Other7th International Conference on Fluvial Hydraulics, RIVER FLOW 2014
CountrySwitzerland
CityLausanne
Period3/09/145/09/14

Fingerprint Dive into the research topics of 'Macquarie river floodplain flow modeling: Implications for ecogeomorphology'. Together they form a unique fingerprint.

  • Cite this

    Rojas, S. G. S., Rodríguez, J. F., Saco, P., Riccardi, G., Wen, L., Saintilan, N., ... Basile, P. A. (2014). Macquarie river floodplain flow modeling: Implications for ecogeomorphology. In A. J. Schleiss, G. de Cesare, M. J. Franca, & M. Pfister (Eds.), Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2014 (pp. 2347-2355). Boca Raton, FL: CRC Press/Balkema.