Necessary input variables for INT2LM (for all forcing data except COSMO-CLM data in case of nesting)
| Variable | essential | dimesions | standard name | long name | units |
| FIS | x | 2D+time | surface_geopotential | surface geopotential height | m2 / s2 |
| FR_LAND | x | 2D | land_area_fraction | land-sea fraction | 1 |
| PS | x | 2D+time | surface_air_pressure | surface pressure | Pa |
| QC | 3D+time | mass_fraction_of_cloud_liquid_water_in_air | specific cloud liquid water content | kg/ kg | |
| QV | x | 3D+time | specific_humidity | specific humidity | kg / kg |
| QV_S | 2D+time | surface_specific_humidity | surface specific humidity | kg / kg | |
| T | x | 3D+time | air_temperature | temperature | K |
| T_S | 2D+time | surface_temperature_at_bottom_of_snow | surface temperature at bottom of snow | K | |
| T_SKIN | 2D+time | surface_temperature | skin temperature | K | |
| T_SNOW | 2D+time | snow_temperature | snow temperature | K | |
| U | x | 3D+time | grid_eastward_wind | U-component of wind | m / s |
| V | x | 3D+time | grid_northward_wind | V-component of wind | m / s |
| VW_SO | 3D+time | volume_fraction_of_soil_moisture | volumetric soil water content | m3 / m3 | |
| W_I | 2D+time | canopy_water_amount | canopy water amount | kg / m2 | |
| W_SNOW | 2D+time | lwe_thickness_of_surface_snow_amount | surface snow amount | m |