Cloud Radiative Effects on Solar Radiation Over the Eastern Mediterranean Basin from 1984 to 2007
The cloud radiative effect (CRE) on solar shortwave (SW) radiation is investigated over the broader Mediterranean basin, for the 24-year period from 1984 to 2007, using a deterministic spectral radiation transfer model (RTM) and quality monthly cloud data taken from the ISCCP-D2 satellite database. The model simulates the interaction of solar radiation with all relevant physical parameters, namely ozone, carbon dioxide, methane, water vapour, aerosols and atmospheric molecules as well as surface reflection. The ISCCP cloud model input data include cloud cover and optical depths for low-, mid-, and high-level clouds, separately for ice and liquid water clouds. The model computes CREs at the top of atmosphere (CRETOA), within the atmosphere (CREatmab), and at the surface (effects on downwelling and absorbed solar radiation, CREsurf and CREsurfnet). The determined perturbation of regional SW radiation budget by clouds is important, undergoing significant intra-annual and inter-annual changes.
KeywordsInternational Satellite Cloud Climatology Project Cloud Property Cloud Radiative Force Liquid Water Path Cloud Radiative Effect
- Hatzianastassiou N, Matsoukas C, Drakakis E, Stackhouse PW Jr, Koepke P, Fotiadi A, Pavlakism KG, Vardavas I (2007) The direct effect of aerosols on solar radiation based on satellite observations, reanalysis datasets, and spectral aerosol optical properties from Global Aerosol Data Set (GADS). Atmos Chem Phys 7:2585–2599CrossRefGoogle Scholar
- Rossow WB et al (1996) International Satellite Cloud Climatology Project (ISCCP). Documentation of new cloud datasets. Wold Meteorol. Org, GenevaGoogle Scholar