Improved streamflow prediction accuracy in Boreal climate watershed using a LSTM model: A comparative study
Bibliographic record
Abstract
Streamflow plays a vital role in water resource management and environmental impact assessment. This study is a novel application of the Long Short-Term Memory (LSTM) model, a type of recurrent neural network, for real-time streamflow prediction in the Upper Humber River Watershed in western Newfoundland. It also compares the performance of the LSTM model with the physically based SWAT model. The LSTM model was optimized by tuning hyperparameters and adjusting the window size to balance capturing historical data and ensuring prediction stability. Using single input variables such as daily average temperature or precipitation, the LSTM achieved a high Nash-Sutcliffe Efficiency (NSE) of 0.95. In comparison, the results show that the LSTM model delivers a more competitive performance, achieving an NSE of 0.95 versus SWAT’s 0.77, and a percent bias (PBIAS) of 0.62 compared to SWAT’s 8.26. Unlike SWAT, the LSTM model does not overestimate high flows and excels in predicting low flows. Additionally, the LSTM successfully predicted daily streamflow using real-time data. Despite challenges in interpretability and generalizability, the LSTM model demonstrated strong performance, particularly during extreme events, making it a valuable tool for streamflow prediction in cold climates where accurate forecasts are crucial for effective water management. This study highlights the potential of the LSTM model’s application to water resource management.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".