1. GSFC

2. Glaciation Level and Vertical Profile of Droplet Size Associated with Cloud-Aerosol Interactions (D. Rosenfeld) Clean Polluted

3. GSFC Glaciation Level and Vertical Profile of Droplet Size Associated with Cloud-Aerosol Interactions (D. Rosenfeld) Clean Clean Cases Polluted Cases

4. GSFC Scientific Scenario for CLAIM-3D: Today, Microphysical Effects on Clouds: Studied from Cloud Top with many assumptions With complicated/limited in situ aircraft measurements. The CLOUD SCANNER add: Instantaneous measurements of the cloud vertical profile of microphysics, thermodynamic phase, and cloud 3D properties Simultaneous measurements of aerosol properties Today, Microphysical Effects on Clouds: Studied from Cloud Top with many assumptions With complicated/limited in situ aircraft measurements. The CLOUD SCANNER add: Instantaneous measurements of the cloud vertical profile of microphysics, thermodynamic phase, and cloud 3D properties Simultaneous measurements of aerosol properties

5. GSFC Cloud Scanner Measurements During the LBA/SMOCC/Racci Experiment 2002

6. GSFC

7. 350  nm) 2500 Ice Water 350(nm) 2500 Ice Water Ice Water Ice Water Ice Water Clear Sky Cloud Surface ice water Glaciation Level Clear Sky Cloud Surface ice water Glaciation Level 350(nm) 2500 Prototype Results Thermodynamic Phase Droplet Size Temperature Aerosol Type + Amount Aircraft Proof of Concept Cloud Side Measurements 0 Effective Radius (  m) 50

8. GSFC King et. all 1997

9. GSFC Reflectances from Side and Top of a Cylindrical Cloud (  z=50,  x=30) 0 1 2 3 4 5 6 7 8 00.20.40.60.81 Reflectance height (km) Cloud Top Cloud Side 2.1  m 0.66  m  o = 60,  = 40 3-D Radiative Transfer Studies:

10. GSFC  v =60 ,  v =180   v =60 ,  v =0   o =60 ,   o =0   v =0 ,   v =0   v =60 ,  v =90  A. Marshak – 3D Cloud Simulation Input (optical depth) Output

11. GSFC 100km Default Simple Scanning Mode The instrument points towards the illuminated side of the clouds and scans as the satellite moves (see simple scan movie). An extra feature and also descope option can be a second simple camera (between 1 to 3 visible wavelengths for parallax observations of the cloud structure). Additional 1- view angle for Parallax (also for descope option) Multi Spectral Cloud Scanner View direction

12. GSFC

13. 100km Geometry of the Multi-Angle Scan The instrument view angle changes from forward to backward geometries as it scans a selected region (see full scan movie) ~ 400km

14. GSFC ~ 400km

15. GSFC CLAIM-3D Observing Geometry (fig 1) Side view International collaboration: Enhanced Polder International collaboration: Enhanced Polder Cloud Scanner Cloud Scanner 3D view Min. 100km swath Cloud Structure And Vegetation Hot Spot

16. GSFC

18. TMI Image 60dg View angle Courtesy of Antony Davis

19. GSFC