Fig. 1 | Nature Communications

Fig. 1

From: Observational constraint on cloud susceptibility weakened by aerosol retrieval limitations

Fig. 1

Global mean susceptibility of cloud droplet size, susceptibility of precipitation probability, and effective radiative forcing due to aerosol-cloud interactions. Estimates of SRe = −∂ln(Re)/∂ln(CCN)18, SPOP = −∂ln(POP)/∂ln(CCN)6, and the inferred ERFaci are derived from satellite retrievals and CAM5 model simulation when accounting for sampling and retrieval limitations. Observational estimates are derived from satellite-retrieved data products at the 20 km footprints of the Cloud and Earth’s Radiant Energy System (CERES) from CERES-CALIPSO-CloudSat-MODIS (C3M)70, 71. Model estimates are derived from conventional sampling of model fields (CAM5_clim) and incrementally accounting for orbital sampling (CAM5_orb), cloud clearing (CAM5_cld), aerosol detection threshold (CAM5_det), aerosol extinction retrieval (CAM5_aer), and cloud retrieval uncertainties using CALIPSO, CloudSat, and MODIS cloud simulators (CAM5_sim). Vertical and horizontal bars represent the range of SRe and SPOP for a range of LWP from 20 to 200 g m−2. Blue shaded background represents ERFaci estimates as a function of SRe and SPOP derived from a series of CAM5 sensitivity simulations6. See Methods for details

Back to article page