Evidence map›Paper›PMID 41644622›Full record

ArticleScientific reports2026

High-resolution forecasting of soil thermal regimes using different deep learning frameworks under climate change.

Mehri Saeidinia, Amir Hamzeh Haghiabi, Mohammad Nazeri Tahroudi, Aliheidar Nasrolahi, Carlo De Michele

Abstract read
In one paragraph

Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Mehri SaeidiniaDepartment of Water Engineering, Lorestan University, Khorramabad, Iran. saeedinia.m@lu.ac.ir.
Amir Hamzeh HaghiabiDepartment of Water Engineering, Lorestan University, Khorramabad, Iran.
Mohammad Nazeri TahroudiDepartment of Water Engineering, Lorestan University, Khorramabad, Iran.
Aliheidar NasrolahiDepartment of Water Engineering, Lorestan University, Khorramabad, Iran.
Carlo De MicheleDepartment of Civil and Environmental Engineering, Politecnico Di Milano, Milan, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Soil temperature is a critical parameter influencing ecological and hydrological processes, yet its accurate projection under climate change remains challenging due to coarse-resolution climate models and complex soil-atmosphere interactions. This study develops a deep learning framework to downscale soil temperature (5 cm depth) in western Iran, under climate change scenarios. Using an ensemble of three complementary techniques—Random Forest (Gini) importance, Permutation Importance, and SHAP (SHapley Additive exPlanations) analysis—we identified optimal predictors from the 26 available CanESM5 (CMIP6) variables. Four deep learning models—CNN, LSTM, GRU, and a hybrid CNN-LSTM—were evaluated for downscaling performance using historical data (1980–2014). The hybrid CNN-LSTM model outperformed others, achieving the highest accuracy (NSE > 86%, RMSE < 4.3°C) by capturing spatial and temporal dependencies in soil thermal dynamics. Assessing the plausibility of each scenario’s trend (2015–2020) revealed regional climate patterns: western stations, more arid and warming-sensitive, aligned with SSP245/SSP370, while eastern stations, influenced by the Zagros Mountains, showed cooling and precipitation feedbacks favoring SSP119/SSP126. Future projections under SSP126, SSP245, and SSP585 scenarios indicated nonlinear soil temperature responses, with high-emission pathways (SSP585) causing initial cooling (-4.11°C by 2040) followed by accelerated warming (+ 2.09°C by 2100). In stark contrast, low- and mid-emission pathways (SSP126, SSP245) lead to stable, moderate warming. This creates a dramatic reversal in decadal trends for SSP585, shifting from strong cooling to rapid heating, and alters the climate’s statistical profile. The findings emphasize that high emissions defer but ultimately cause the most intense warming, highlighting the critical influence of emission pathways on the future pace and pattern of soil temperature change.

Indexed as

Climate change scenariosCMIP6CNN-LSTMDeep learningSoil temperature downscalingSSPs

Identifiers

PMID41644622
PMCPMC12923653

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.