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arXiv 2406.07484cs.LG
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利用 Transformer 模型进行120小时径流预测以迈向广义水文预报

Towards Generalized Hydrological Forecasting using Transformer Models for 120-Hour Streamflow Prediction

IIHR—Hydroscience and Engineering, University of Iowa(爱荷华大学 IIHR—水科学与工程研究所);Civil and Environmental Engineering, University of Iowa(爱荷华大学土木与环境工程系);Electrical and Computer Engineering, University of Iowa(爱荷华大学电气与计算机工程系)

Bekir Z. Demiray, Ibrahim Demir

AI总结:

针对特定地点水文模型泛化不足的问题,本文基于前72小时降水、蒸散和流量数据训练Transformer,在爱荷华州125个地点完成120小时径流预测,多项指标优于LSTM、GRU、Seq2Seq和Persistence。

摘要:

本研究探究了 Transformer 模型在美国爱荷华州125个不同地点进行120小时径流预测的有效性。我们利用此前72小时的数据(包括降水、蒸散和流量值),开发了一个用于预测未来径流的广义模型。我们的方法与通常依赖特定地点模型的传统方法形成对比。我们将 Transformer 模型的性能与三种深度学习模型(LSTM、GRU和Seq2Seq)以及Persistence方法进行了基准比较,采用Nash-Sutcliffe效率系数(NSE)、Kling-Gupta效率系数(KGE)、Pearson's r和归一化均方根误差(NRMSE)作为指标。研究揭示了 Transformer 模型的优越性能,其保持了更高的NSE和KGE中位数分数,并表现出最低的NRMSE值。这表明它能够准确模拟和预测径流,有效适应不断变化的水文条件和地理差异。我们的研究结果强调了 Transformer 模型作为水文建模先进工具的潜力,相较传统和当代方法提供了显著改进。

英文摘要:

This study explores the efficacy of a Transformer model for 120-hour streamflow prediction across 125 diverse locations in Iowa, US. Utilizing data from the preceding 72 hours, including precipitation, evapotranspiration, and discharge values, we developed a generalized model to predict future streamflow. Our approach contrasts with traditional methods that typically rely on location-specific models. We benchmarked the Transformer model's performance against three deep learning models (LSTM, GRU, and Seq2Seq) and the Persistence approach, employing Nash-Sutcliffe Efficiency (NSE), Kling-Gupta Efficiency (KGE), Pearson's r, and Normalized Root Mean Square Error (NRMSE) as metrics. The study reveals the Transformer model's superior performance, maintaining higher median NSE and KGE scores and exhibiting the lowest NRMSE values. This indicates its capability to accurately simulate and predict streamflow, adapting effectively to varying hydrological conditions and geographical variances. Our findings underscore the Transformer model's potential as an advanced tool in hydrological modeling, offering significant improvements over traditional and contemporary approaches.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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