Bedrock channel morphological modeling on the river in Taiwan

K. W. Wu, K. C. Yeh, C. T. Liao, Y. G. Lai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Rivers in Taiwan typically have steep slopes and subject to rapidly varied transient flood flows. Instream structures are widely used for flood prevention and water intake in most rivers for limited water resources. This study concerns with a reach downstream of Ji-Ji Weir on Cho-Shui River, where a vertical bedrock erosion of up to 15 meter was recorded since 1999.A number of engineering schemes have been proposed to stabilize the stream channel. To find out the major agents dominating river morphological variation for river stability project decision, a two-dimensional model, SRH-2D, is used to simulate both alluvial erosion and bedrock incision for long-term channel morphological evolution on the Cho-Shui River in Taiwan. A validation study is carried out first, covering January 1, 1998 to December 31, 2014. Then four scenarios are simulated using the validated model parameters to identify the major agents affecting the stability of study river reach.

Original languageEnglish
Title of host publicationRiver Sedimentation - Proceedings of the 13th International Symposium on River Sedimentation, ISRS 2016
EditorsSilke Wieprecht, Stefan Haun, Karolin Weber, Markus Noack, Kristina Terheiden
PublisherCRC Press/Balkema
Pages760-767
Number of pages8
ISBN (Print)9781138029453
StatePublished - 1 Jan 2017
Event13th International Symposium on River Sedimentation, ISRS 2016 - Stuttgart, Germany
Duration: 19 Sep 201622 Sep 2016

Publication series

NameRiver Sedimentation - Proceedings of the 13th International Symposium on River Sedimentation, ISRS 2016

Conference

Conference13th International Symposium on River Sedimentation, ISRS 2016
CountryGermany
CityStuttgart
Period19/09/1622/09/16

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