Journal article icon

Journal article

Benchmarking data-driven rainfall-runoff models in Great Britain: a comparison of LSTM-based models with four lumped conceptual models

Abstract:
Long short-term memory (LSTM) models are recurrent neural networks from the field of deep learning (DL) which have shown promise for time series modelling, especially in conditions when data are abundant. Previous studies have demonstrated the applicability of LSTM-based models for rainfall–runoff modelling; however, LSTMs have not been tested on catchments in Great Britain (GB). Moreover, opportunities exist to use spatial and seasonal patterns in model performances to improve our understanding of hydrological processes and to examine the advantages and disadvantages of LSTM-based models for hydrological simulation. By training two LSTM architectures across a large sample of 669 catchments in GB, we demonstrate that the LSTM and the Entity Aware LSTM (EA LSTM) models simulate discharge with median Nash–Sutcliffe efficiency (NSE) scores of 0.88 and 0.86 respectively. We find that the LSTM-based models outperform a suite of benchmark conceptual models, suggesting an opportunity to use additional data to refine conceptual models. In summary, the LSTM-based models show the largest performance improvements in the north-east of Scotland and in south-east of England. The south-east of England remained difficult to model, however, in part due to the inability of the LSTMs configured in this study to learn groundwater processes, human abstractions and complex percolation properties from the hydro-meteorological variables typically employed for hydrological modelling.
Publication status:
Published
Peer review status:
Peer reviewed

Actions

Access Document

Files:
Publisher copy:
10.5194/hess-25-5517-2021

Authors

More by this author
Role:
Author
ORCID:
0000-0002-3294-794X
More by this author
Role:
Author
ORCID:
0000-0002-5047-1631
More by this author
Role:
Author
ORCID:
0000-0002-5936-3346
More by this author
Institution:
University of Oxford
Division:
SSD
Department:
SOGE
Sub department:
Geography
Oxford college:
Hertford College
Role:
Author
ORCID:
0000-0001-9416-488X


Publisher:
Copernicus Publications
Journal:
Hydrology and Earth System Sciences More from this journal
Volume:
25
Issue:
10
Pages:
5517–5534
Publication date:
2021-10-21
Acceptance date:
2021-08-29
DOI:
EISSN:
1607-7938
ISSN:
1027-5606


Language:
English
Keywords:
Pubs id:
1167528
Local pid:
pubs:1167528
Deposit date:
2021-09-17
ARK identifier:

Terms of use


Views and Downloads






If you are the owner of this record, you can report an update to it here: Report update to this record

TO TOP