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Urban thermal evolution and baseline mapping of summer daytime land surface temperature in Chongqing, China
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DOI：10.1016/j.uclim.2026.103009.png)
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Abstract
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• Reconstructed 30-m summer daytime LST in Chongqing from 2000 to 2024. • Summer daytime LST increased by 0.077 °C yr−1 over the study period. • SHAP analysis identified shifting roles of vegetation and built-up intensity. • A validation-weighted ensemble improved baseline 2030 LST mapping accuracy. • LCZ comparison revealed modest thermal differences under a fixed morphology layer.
Keywords:
Land surface temperature (LST)
Urban heat Island (UHI)
XGBoost–SHAP
Local climate zone (LCZ)
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