Typical Workflow

We have two target quantities which will be derived from the analysis

• net TOA radiation fields including the so-called cloud-radiative effect (CRE)
• cloud typing (also based on TOA radiation observation

Both analysis targets will be derived from observations (esp. using Meteosat data) nad from simulation using ICON-NWP data.

Analysis of Simulation Data

Simulation data are given on a icosahedral grid with different grid spacings. The following analysis steps are explained

• regridding and preparation of TOA radiation fluxes for CRE calculation
• cloud typing similar to observation-based appraoches

For the simulation data, the cloud typing aspect is more complex.

Analysis of Observation Data

The observational data are derived from Meteosat. The following analysis steps are explained

• preparation of allsky TOA radiation fluxes and estimated clear-sky fluxes for CRE calculation
• cloud typing as NWCSAF product

For the observation data, the CRE aspect is more complex.