Evaluated WRF physics-scheme configuration pool: 780 namelist combinations with IMERG-verified precipitation RMSE

This deposit contains the evaluated configuration pool and the analysis code supporting Bridging Search Efficiency and Surrogate Generalization: A Hybrid Acquisition Strategy for Categorical Physics Scheme Selection in NWP Model. The pool consists of 780 distinct WRF 4.2.1 physics-scheme configurations, each defined by seven categorical namelist parameters (mp_physics, cu_physics, bl_pbl_physics, ra_lw_physics, ra_sw_physics, sf_sfclay_physics, sf_surface_physics) drawn from a Cartesian product of 2,457,000 possible combinations. Each configuration was evaluated by running the full WRF simulation and comparing simulated precipitation against IMERG-based observations over a 10-day window, yielding a single objective value per configuration: the root-mean-square error computed from 10 daily precipitation values. Across the pool, RMSE ranges from 2.3474 to 58.1705 with a median of 5.66, and the distribution is heavily right-skewed.