Daily soil temperature prediction using hybrid deep learning and SHAP for sustainable soil management

The thermal conditions within soil layers represent essential information across diverse fields including sustainable agriculture, power generation, biological research, ecological studies, forest management, and thermal energy systems. Therefore, this study assessed prediction capabilities for subt...

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Main Authors: Meysam Alizamir, Kaywan Othman Ahmed, Salim Heddam, Sungwon Kim, Jeong Eun Lee
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:Engineering Applications of Computational Fluid Mechanics
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Online Access:https://www.tandfonline.com/doi/10.1080/19942060.2025.2541686
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author Meysam Alizamir
Kaywan Othman Ahmed
Salim Heddam
Sungwon Kim
Jeong Eun Lee
author_facet Meysam Alizamir
Kaywan Othman Ahmed
Salim Heddam
Sungwon Kim
Jeong Eun Lee
author_sort Meysam Alizamir
collection DOAJ
description The thermal conditions within soil layers represent essential information across diverse fields including sustainable agriculture, power generation, biological research, ecological studies, forest management, and thermal energy systems. Therefore, this study assessed prediction capabilities for subterranean thermal measurements using different advanced deep learning models at six distinct depth points across dual climate monitoring locations, Darbandikhan and Chamchamal within Iraq's Kurdistan territory. Furthermore, various configurations of the input variables were examined across seven distinct observational scenarios to identify the most significant predictive factors. Based on the results of this study, various deep learning models demonstrated optimal performance for soil temperature prediction at different depths across the two stations. At Chamchamal station, the hybrid deep learning model that combines bidirectional gated recurrent unit (BiGRU) and convolutional neural network (CNN), denoted as BiGRU-CNN achieved the best result for the 05 cm depth (RMSE = 1.298°C), while the hybrid model based on gated recurrent unit (GRU) and convolutional neural network (CNN), referred to as GRU–CNN yielded the best performance at 10 cm (RMSE = 1.333°C). BiLSTM-CNN provided the most accurate predictions at 20 cm (RMSE = 1.489°C), and BiGRU-CNN generated superior results at 30 cm (RMSE = 1.267°C). For deeper soil layers, GRU-CNN delivered the most accurate results at 50 cm (RMSE = 1.058°C), and LSTM-CNN performed the best at 100 cm (RMSE = 1.171°C). Additionally, at Darbandikhan station, BiLSTM-CNN generated the most accurate predictions at 50 cm depth (RMSE = 1.506°C). The results indicate that the proposed methodologies offer viable solutions for soil temperature forecasting when utilizing the meteorological input variables. These models demonstrate substantial potential as reliable tools for accurately estimating subsurface thermal conditions based on available parameters.
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spelling doaj-art-91328f3cd75c45e3b5b8fc1850792b452025-08-20T03:41:53ZengTaylor & Francis GroupEngineering Applications of Computational Fluid Mechanics1994-20601997-003X2025-12-0119110.1080/19942060.2025.2541686Daily soil temperature prediction using hybrid deep learning and SHAP for sustainable soil managementMeysam Alizamir0Kaywan Othman Ahmed1Salim Heddam2Sungwon Kim3Jeong Eun Lee4Institute of Research and Development, Duy Tan University, Da Nang, VietnamCivil Engineering Department, Tishk International University, Sulaimani, IraqFaculty of Science, Agronomy Department, Hydraulics Division, Skikda, AlgeriaDepartment of Railroad Construction and Safety Engineering, Dongyang University, Yeongju, Republic of KoreaDepartment of Hydro Science and Engineering Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang-si, Republic of KoreaThe thermal conditions within soil layers represent essential information across diverse fields including sustainable agriculture, power generation, biological research, ecological studies, forest management, and thermal energy systems. Therefore, this study assessed prediction capabilities for subterranean thermal measurements using different advanced deep learning models at six distinct depth points across dual climate monitoring locations, Darbandikhan and Chamchamal within Iraq's Kurdistan territory. Furthermore, various configurations of the input variables were examined across seven distinct observational scenarios to identify the most significant predictive factors. Based on the results of this study, various deep learning models demonstrated optimal performance for soil temperature prediction at different depths across the two stations. At Chamchamal station, the hybrid deep learning model that combines bidirectional gated recurrent unit (BiGRU) and convolutional neural network (CNN), denoted as BiGRU-CNN achieved the best result for the 05 cm depth (RMSE = 1.298°C), while the hybrid model based on gated recurrent unit (GRU) and convolutional neural network (CNN), referred to as GRU–CNN yielded the best performance at 10 cm (RMSE = 1.333°C). BiLSTM-CNN provided the most accurate predictions at 20 cm (RMSE = 1.489°C), and BiGRU-CNN generated superior results at 30 cm (RMSE = 1.267°C). For deeper soil layers, GRU-CNN delivered the most accurate results at 50 cm (RMSE = 1.058°C), and LSTM-CNN performed the best at 100 cm (RMSE = 1.171°C). Additionally, at Darbandikhan station, BiLSTM-CNN generated the most accurate predictions at 50 cm depth (RMSE = 1.506°C). The results indicate that the proposed methodologies offer viable solutions for soil temperature forecasting when utilizing the meteorological input variables. These models demonstrate substantial potential as reliable tools for accurately estimating subsurface thermal conditions based on available parameters.https://www.tandfonline.com/doi/10.1080/19942060.2025.2541686Soil temperaturedeep learningGRU-CNNLSTM-CNNSHAP
spellingShingle Meysam Alizamir
Kaywan Othman Ahmed
Salim Heddam
Sungwon Kim
Jeong Eun Lee
Daily soil temperature prediction using hybrid deep learning and SHAP for sustainable soil management
Engineering Applications of Computational Fluid Mechanics
Soil temperature
deep learning
GRU-CNN
LSTM-CNN
SHAP
title Daily soil temperature prediction using hybrid deep learning and SHAP for sustainable soil management
title_full Daily soil temperature prediction using hybrid deep learning and SHAP for sustainable soil management
title_fullStr Daily soil temperature prediction using hybrid deep learning and SHAP for sustainable soil management
title_full_unstemmed Daily soil temperature prediction using hybrid deep learning and SHAP for sustainable soil management
title_short Daily soil temperature prediction using hybrid deep learning and SHAP for sustainable soil management
title_sort daily soil temperature prediction using hybrid deep learning and shap for sustainable soil management
topic Soil temperature
deep learning
GRU-CNN
LSTM-CNN
SHAP
url https://www.tandfonline.com/doi/10.1080/19942060.2025.2541686
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AT salimheddam dailysoiltemperaturepredictionusinghybriddeeplearningandshapforsustainablesoilmanagement
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