Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/96794
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Type: Journal article
Title: An adaptive ant colony optimization framework for scheduling environmental flow management alternatives under varied environmental water availability conditions
Author: Szemis, J.
Maier, H.
Dandy, G.
Citation: Water Resources Research, 2014; 50(10):7606-7625
Publisher: AGU
Issue Date: 2014
ISSN: 0043-1397
1944-7973
Statement of
Responsibility: 
J. M. Szemis, H. R. Maier, and G. C. Dandy
Abstract: Human water use is increasing and, as such, water for the environment is limited and needs to be managed efficiently. One method for achieving this is the scheduling of environmental flow management alternatives (EFMAs) (e.g., releases, wetland regulators), with these schedules generally developed over a number of years. However, the availability of environmental water changes annually as a result of natural variability (e.g., drought, wet years). To incorporate this variation and schedule EFMAs in a operational setting, a previously formulated multiobjective optimization approach for EFMA schedule development used for long-term planning has been modified and incorporated into an adaptive framework. As part of this approach, optimal schedules are updated at regular intervals during the planning horizon based on environmental water allocation forecasts, which are obtained using artificial neural networks. In addition, the changes between current and updated schedules can be minimized to reduce any disruptions to longterm planning. The utility of the approach is assessed by applying it to an 89km section of the River Murray in South Australia. Results indicate that the approach is beneficial under a range of hydrological conditions and an improved ecological response is obtained in a operational setting compared with previous longterm approaches. Also, it successfully produces trade-offs between the number of disruptions to schedules and the ecological response, with results suggesting that ecological response increases with minimal alterations required to existing schedules. Overall, the results indicate that the information obtained using the proposed approach potentially aides managers in the efficient management of environmental water.
Rights: © American Geophysical Union. All Rights Reserved.
RMID: 0030016525
DOI: 10.1002/2013WR015187
Appears in Collections:Civil and Environmental Engineering publications

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