SMOLDER: 2020 hold-out data cube for next-3-day wildfire risk in Australia (1 km, daily)

Daily analysis-ready data cube for continental Australia in 2020, the hold-out test year of the SMOLDER wildfire-risk model (https://github.com/catKorb/smolder-wildfire-australia). Zarr store cube_2020_zenodo.zarr on the SMIPS grid: 3474 × 4110 px, EPSG:4326, 0.01° pixels, origin 112.905° E / 9.005° S, 366 days. X (day, y, x, 6): soil moisture (SMIPS), 10 m wind speed (BARRA2), vapour pressure deficit (ERA5), precipitation (ANUClimate 2.0), land-surface temperature (gap-filled MODIS, Zhang et al. 2022), leaf area index (HiQ-LAI). Channel order is in the attribute channels; missing values are 0. y_fire_3d (day, y, x): 1 if a VIIRS 375 m active-fire detection (vegetation fire, nominal or high confidence) occurred at the pixel on day t+1, t+2 or t+3. This array is 1 over the ocean; apply landmask before any metric or distance computation. Static layers: landmask, agb (ESA CCI Biomass), landcover (Copernicus LC100 v3.0.1), koppen_geiger (Beck et al. 2023), plus elevation, slope, aspect_sin, aspect_cos and lightning, which the released model does not use. NDVI was removed to meet the record size limit; the model does not read it. Together with the companion record (10.5281/zenodo.21749290), this reproduces every result in the repository README.