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Modeling the Flood Modification Effects of a Mid-Sized Unregulated Wetland

Robert C. McKillop, Nick Kouwen and Eric Soulis (1999)
University of Waterloo
DOI: https://doi.org/10.14796/JWMM.R204-18
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Abstract

In contrast to the extensive literature on hydrologic modeling of agricultural and urban land classes, relatively little attention has been focused on the prediction of the stormflow response from wetland ecosystems. If required to predict the rate of outflow from a wetland system, the hydrologist or engineer has few numerical tools and little available data to assist in the prediction. This chapter presents the application of a numerical wetland model using synthetic precipitation events. The wetland model consists of a field hydrology model fully coupled to a stream routing model. The field hydrology model incorporates two distinct layers, one representing the surficial hummock terrain common to many wetlands and the other representing the organic layer characteristic of all wetland sites. The hydrology model includes process representations for the quickflow responses associated with overland flows through the surficial hummock terrain and long term subsurface interflow mechanisms within the wetland organics. Antecedent saturation states dictate the amount of storage available for temporarily storing meteorologic inputs. Under low saturation levels, the stormflow response is controlled by subsurface stormflow mechanisms. Under high saturation levels, overland flow mechanisms shape the response. Over the past few years, the integration of wetland sites and adjacent urban land use has been a focus of discussion. The results of this study illustrate the complexity and variability of the hydrologic response at a wetland site, even to a single precipitation input.

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PAPER INFO

Identification

CHI ref #: R204-18 1051
Volume: 7
DOI: https://doi.org/10.14796/JWMM.R204-18
Cite as: CHI JWMM 1999;R204-18

Publication History

Received: N/A
Accepted: N/A
Published: February 15, 1999

Status

# reviewers: 2
Version: Final published

Copyright

© 1999 CHI. Some rights reserved.

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Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

The Journal of Water Management Modeling is an open-access (OA) publication. Open access means that articles and papers are available without barriers to all who could benefit from them. Practically speaking, all published works will be available to a worldwide audience, free, immediately on publication. As such, JWMM can be considered a Diamond, Gratis OA journal.

All papers published in the JWMM are licensed under a Creative Commons Attribution 4.0 International License (CC BY).

JWMM content can be downloaded, printed, copied, distributed, and linked-to, when providing full attribution to both the author/s and JWMM.


AUTHORS

Robert C. McKillop

University of Waterloo, Waterloo, ON, Canada
ORCiD:

Nick Kouwen

University of Waterloo, Waterloo, ON, Canada
ORCiD:

Eric Soulis

University of Waterloo, Waterloo, ON, Canada
ORCiD:


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