Data for "Seasonal Temperature-Driven Competition between Recirculation Trapping and Diffusion Controls Solute Tailing in Rough Fractures"

This dataset contains numerical simulation results describing temperature-dependent non-Fickian solute transport in locally rough fractures. It includes nine rough-fracture models (Case1–Case9) and one independent test fracture (Test). Each row represents one fracture–hydraulic-gradient–temperature combination and its corresponding dimensionless non-Fickian coefficient, λ. Temperatures range from 2 to 50°C, and the actual hydraulic gradients range from 0.025 to 3.5. The coefficient λ quantifies tailing in the outlet breakthrough curve. Larger λ values indicate stronger solute retention and more pronounced non-Fickian tailing, whereas smaller values indicate weaker tailing. The dataset can be used to reproduce temperature–λ relationships, identify critical temperatures associated with minimum and maximum tailing, and investigate competition between recirculation-zone trapping and temperature-enhanced molecular diffusion.