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Estimation of Design Flood Hydrograph for an Ungauged Watershed

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  • Jueyi Sui

Abstract

Based on the physiographical features of the studied watershed of 102.5 km 2 in northern Ontario and the meteorological data of one nearby climatic station, through the combination of the regionalization of flood and the HEC-1 modeling, this article presents an approach that may be used to determine the desired peak flows for the ungauged watershed. The empirical equations used to determine the desired peak flows were developed by the Cumming Cockburn Ltd. (CCL) who has carried out the studies on flood regionalization by using flow data at 380 gauging stations in Ontario. CCL has proposed four methods to estimate peak flows, namely 1) regression method describing multiple linear relationships between flood flow and related parameters; 2) index flood frequency curve; 3) regional flood frequency curve and 4) isoline map for unit peak flow. The desired peak flows for studied watershed determined by CCL methods were used to calibrate the HEC-1 model for the rainfall-runoff simulation for this watershed which consists of 15 subwatersheds. Through slight adjustment in the CN number used in the HEC-1 model, the calibrated HEC-1 model could be used for rainfall-runoff simulation for this ungauged watershed. This approach could be recommended for hydrological design and watershed management for ungauged watersheds provided the analyses of flood regionalization could be conducted. In addition, comparing to the Bavaria forest region, Germany, some questions have been discussed in this article. Copyright Springer Science + Business Media, Inc. 2005

Suggested Citation

  • Jueyi Sui, 2005. "Estimation of Design Flood Hydrograph for an Ungauged Watershed," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 19(6), pages 813-830, December.
    • Handle: RePEc:spr:waterr:v:19:y:2005:i:6:p:813-830
    DOI: 10.1007/s11269-005-6812-1
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    Cited by:

    1. Jordan Clayton & Jason Kean, 2010. "Establishing a Multi-scale Stream Gaging Network in the Whitewater River Basin, Kansas, USA," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 24(13), pages 3641-3664, October.
    2. Samuel Beskow & Lloyd Norton & Carlos Mello, 2013. "Hydrological Prediction in a Tropical Watershed Dominated by Oxisols Using a Distributed Hydrological Model," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 27(2), pages 341-363, January.
    3. Momcilo Markus & Donald Wuebbles & Xin-Zhong Liang & Katharine Hayhoe & David Kristovich, 2012. "Diagnostic analysis of future climate scenarios applied to urban flooding in the Chicago metropolitan area," Climatic Change, Springer, vol. 111(3), pages 879-902, April.

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