iDust Model Forecast Products for Analysis of the April 2025 Southern China Dust Storm

This dataset contains three forecast products from the iDust coupled weather‑dust model, initialized daily from 4 to 10 April 2025 (seven runs), each with a 10‑day forecast length, covering the entire Northern Hemisphere: hourly PM10 surface concentration originally on the model grid but interpolated to the unstructured CMEMC points; daily geopotential height on 17 pressure levels (1000–10 hPa) at 2.5°×2.5° spatial resolution; and daily meridional wind at 700 hPa at the same 2.5°×2.5° resolution over the regular longitude–latitude grid. All data are stored in NetCDF format following CF‑1.8 conventions, with complete coordinate variables (longitude, latitude, pressure level, and relative time in hours or days since initialization).