Comparison of the genetic algorithm and pattern search methods for forecasting optimal flow releases in a multi-storage system for flood control

This paper compares the well-known genetic algorithm (GA) and pattern search (PS) optimization methods for forecasting optimal flow releases in a multi-storage system for flood control. The simulation models used by the optimization models include (a) a batch of scripts for data acquisition of forec...

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Bibliographic Details
Published in:Environmental modelling & software : with environment data news Vol. 145; p. 105198
Main Authors: Leon, Arturo S., Bian, Linlong, Tang, Yun
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 01.11.2021
Elsevier Science Ltd
Subjects:
Algorithms
automation
Computer applications
computer software
Computing time
Control systems
Data acquisition
data collection
Flood control
Flood forecasting
Flood management
Flooding
Floods
Forecast
Genetic algorithms
Hydraulic models
Hydrologic models
Hydrology
Mathematical models
Optimization
Pattern search
Rainfall-runoff relationships
Real-time
rivers
runoff
Search methods
streams
Texas
Water management
watersheds
Weather forecasting
Texas
Flood management
Flood control
Real-time
Optimization
Forecast
ISSN:1364-8152, 1873-6726
Online Access:Get full text
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Summary:This paper compares the well-known genetic algorithm (GA) and pattern search (PS) optimization methods for forecasting optimal flow releases in a multi-storage system for flood control. The simulation models used by the optimization models include (a) a batch of scripts for data acquisition of forecasted precipitation and their automated post-processing; (b) a hydrological model for rainfall-runoff conversion, and (c) a hydraulic model for simulating river inundation. This paper focuses on (1) demonstrating the application of the framework by applying it to the operation of a hypothetical eight-wetland system in the Cypress Creek watershed in Houston, Texas; and (2) comparing and discussing the performance of the two optimization methods under consideration. The results show that the GA and PS optimal solutions are very similar; however, the computational time required by PS is significantly shorter than that required by GA. The results also show that optimal dynamic water management can significantly mitigate flooding compared to the case without management. •We compare the performance of the GA and PS methods for forecasting optimal flow releases in a multi-storage system for flood control.•The results of the GA and PS methods are very similar, however the run time required by PS is significantly smaller than that required by GA.•Dynamic water management according to the optimization results can significantly mitigate flooding compared to the case without management.•A key factor for flood control is to partially empty the storage systems before the rainfall event and during the initial period of rainfall.
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ISSN:1364-8152
1873-6726
DOI:10.1016/j.envsoft.2021.105198