Dataset Description:

This dataset provides global monthly dust emission threshold velocity (ut) at 1°×1° resolution, developed through multi-source data integration including ground observations, satellite retrievals, and reanalysis products.

Contents:

• Contains complete source code for dataset generation (ut/genut)
• iDust-ut dataset derived from multi-source observations and reanalysis (ut/rlt/iDust_ut.nc)
• Model-adaptive ut dataset for iDust, CAMS, ERA5, and MERRA-2 with 10-meter wind speed bias compensation(ut/rlt/*ms_ut*.nc)

Key Features:

• iDust-ut validated against field observations (R=0.93, RMSE=0.8 m/s)
• Model-adaptive ut for improved dust forecasting
• Ready-to-use NetCDF4 format with CF-compliant metadata