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A Rainfall‐Runoff Model With LSTM‐Based Sequence‐to‐Sequence Learning
Water resources research, 2020-01, Vol.56 (1), p.n/a
[Peer Reviewed Journal]
2020. American Geophysical Union. All Rights Reserved. ;ISSN: 0043-1397 ;EISSN: 1944-7973 ;DOI: 10.1029/2019WR025326
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Title:
A Rainfall‐Runoff Model With LSTM‐Based Sequence‐to‐Sequence Learning
Author:
Xiang, Zhongrun
;
Yan, Jun
;
Demir, Ibrahim
Subjects:
Algorithms
;
Coastal inlets
;
Computer applications
;
Correlation coefficient
;
Correlation coefficients
;
Evapotranspiration
;
flood forecast
;
Flood forecasting
;
Forecast accuracy
;
Gaussian process
;
Hourly rainfall
;
Hydrologic models
;
Hydrology
;
hydrology modeling
;
Learning algorithms
;
LSTM
;
Machine learning
;
Modelling
;
Prediction models
;
Rain
;
Rainfall
;
Rainfall data
;
Rainfall forecasting
;
Rainfall runoff relationships
;
rainfall‐runoff model
;
Regression models
;
Regressions
;
Rivers
;
Runoff
;
sequence learning
;
Sequencing
;
Stations
;
Statistical analysis
;
Support vector machines
;
Time series
;
Watersheds
Is Part Of:
Water resources research, 2020-01, Vol.56 (1), p.n/a
Description:
Rainfall‐runoff modeling is a complex nonlinear time series problem. While there is still room for improvement, researchers have been developing physical and machine learning models for decades to predict runoff using rainfall data sets. With the advancement of computational hardware resources and algorithms, deep learning methods such as the long short‐term memory (LSTM) model and sequence‐to‐sequence (seq2seq) modeling have shown a good deal of promise in dealing with time series problems by considering long‐term dependencies and multiple outputs. This study presents an application of a prediction model based on LSTM and the seq2seq structure to estimate hourly rainfall‐runoff. Focusing on two Midwestern watersheds, namely, Clear Creek and Upper Wapsipinicon River in Iowa, these models were used to predict hourly runoff for a 24‐hr period using rainfall observation, rainfall forecast, runoff observation, and empirical monthly evapotranspiration data from all stations in these two watersheds. The models were evaluated using the Nash‐Sutcliffe efficiency coefficient, the correlation coefficient, statistical bias, and the normalized root‐mean‐square error. The results show that the LSTM‐seq2seq model outperforms linear regression, Lasso regression, Ridge regression, support vector regression, Gaussian processes regression, and LSTM in all stations from these two watersheds. The LSTM‐seq2seq model shows sufficient predictive power and could be used to improve forecast accuracy in short‐term flood forecast applications. In addition, the seq2seq method was demonstrated to be an effective method for time series predictions in hydrology. Key Points An hourly runoff model was developed using the LSTM sequence‐to‐sequence learning method for 24‐hr predictions on USGS stations The proposed model shows better performance than traditional data‐driven models and is applicable to different watersheds The advantages and limitations of seq2seq models and how this model structure could work on the rainfall‐runoff modeling is presented
Publisher:
Washington: Blackwell Publishing Ltd
Language:
English
Identifier:
ISSN: 0043-1397
EISSN: 1944-7973
DOI: 10.1029/2019WR025326
Source:
Wiley Blackwell AGU Digital Library
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