6:15 PM - 7:30 PM
[ACG09-P04] Evaluation of Satellite-Borne Radar, Lidar, and Imager Algorithm for Retrieval of Cloud Microphysical Properties
Keywords:synergy, radar, lidar, imager, cloud microphysics
In this presentation, cloud microphysics of convective clouds was analysed in September 10, 2006 over the Pacific Ocean. We examined the vertical distribution of Reff, CWC, τvis as well as cloud water path (CWP). By using τvis as a constraint, Reff is ∼50 μm smaller than RL results and ∼300 μm smaller than RL results in the water cloud region below ∼5 km. Responding to this trend, IWC was 0.5 g/m3 larger and LWC was 0.01 g/m3 larger compare to the RL ones. We also compared τvis and CWP between from MODIS, RL, and RLI.
Instead of retrieved τvis, MODIS reflectance was also combined with RL and we examined the uncertainties in the both versions of RLI algorithms, due to the possible variability of ice particle shape and orientations.
In 2017, the joint European and Japanese satellite mission EarthCARE, which will carry a Doppler cloud radar, high-spectral resolution lidar, multi-spectral imager, and broadband radiometer, is scheduled to launch. We discuss how to use Doppler information to reduce the retrieval errors. The algorithm described above will be adapted to the standard algorithm.