SOILHD – Soil-Type Heterogeneous Erodibility Dataset

SOILHD (Soil-type Heterogeneous Erodibility Dataset) is a novel global dataset at 1 km spatial resolution developed to represent soil erodibility and dust emission potential by accounting for the non-homogeneous distribution of soil texture and mineral composition. Unlike traditional approaches that assume uniform soil characteristics within coarse model grid cells, SOILHD incorporates sub-grid variability by integrating high-resolution soil texture fractions, mineralogical information, and land surface properties. The dataset is specifically designed to enhance the physical realism of dust emission parameterizations by enabling atmospheric models to consider heterogeneous soil properties within each grid cell. This approach contributes to more accurate simulations of mineral dust emissions and transport in modeling systems such as WRF-Chem, GEOS-Chem, CMAQ, CHIMERE, and other atmospheric chemistry and climate models. Intended applications: Regional and global dust modeling Sensitivity studies of soil composition and texture Air quality assessment and forecasting Climate simulations involving mineral aerosols