Temporal convolutional network algorithm for streamflow predictions in a subtropical river
File version
Version of Record (VoR)
Author(s)
Deng, C
Zhang, H
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
Size
File type(s)
Location
Sydney, Australia
Abstract
Rainfall-runoff models have a high degree of uncertainty and stochasticity, and the relationship between them is non-linear. Conventional hydrology streamflow prediction models are mostly built for specific watersheds and specific prediction scales, which are poorly promoted and applied. Therefore, in some scenarios, data-driven machine learning predictive models are replacing traditional physical models. Long short-term memory (LSTM) network is a machine learning algorithm for predicting time series and has been applied in the field of streamflow prediction. Temporal convolutional network (TCN) is another machine learning algorithm that is gaining popularity in the field of time series forecasting. LSTM and TCN were implemented in this study to analyse the hourly streamflow prediction for the Nerang River at the Numinbah gauging site, and the predictive accuracy of the models on the test dataset was calculated based on the historical data of the study area. According to the results of the analysis, the TCN model achieved better performance for the hourly streamflow prediction with a coefficient of determination (R2) of 0.9837 and Nash-Sutcliffe efficiency (NSE) of 0.9829 in the best scenario and the lag time for hourly streamflow generation is about three hours in the study area. Additionally, the maximum predicted lead time is six hours in the study area on the TCN model.
Journal Title
Conference Title
Proceedings of the 24th International Congress on Modelling and Simulation
Book Title
Edition
Volume
Issue
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement
These proceedings are licensed under the terms of the Creative Commons Attribution 4.0 International CC BY License (http://creativecommons.org/licenses/by/4.0), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you attribute MSSANZ and the original author(s) and source, provide a link to the Creative Commons licence and indicate if changes were made. Images or other third party material are included in this licence, unless otherwise indicated in a credit line to the material. Individual MODSIM papers are copyright of the Authors and Modelling and Simulation Society of Australia and New Zealand Inc. (MSSANZ).
Item Access Status
Note
Copyright permissions for this publication were identified from the publisher's website at https://mssanz.org.au/modsim2021/
Access the data
Related item(s)
Subject
Persistent link to this record
Citation
Liu, YL; Deng, C; Zhang, H, Temporal convolutional network algorithm for streamflow predictions in a subtropical river, Proceedings of the 24th International Congress on Modelling and Simulation, 2021, pp. 505-511