1. AEROCAN support for Activity 4 (Implications of Measurements on Simulations of Atmospheric Processes and Climate) N. T. O'Neill, S. Hesaraki, Universite de Sherbrooke, Sherbrooke, Canada Norm O'Neill, NETCARE workshop, U. of Toronto, Nov. 19, 2013

2. AEROCAN (Canadian Sunphotometer Network)         Resolute Bay Saturna Island Bratt’s Lake Waskesiu Churchill Kuujjuarapik Halifax Sherbrooke Egbert  Pickle Lake  Fort McKay & McMurray  Kelowna  Chapais Eureka (PEARL, OPAL)   Toronto  Yellowknife Iqaluit   Sable Island   Lethbridge 

3.    NSHSRL MMCR CRL, AMS MMCR KARL Polar summer sites AERONET AEROCAN / AERONET Polar summer         

4. NSHSRL MMCR CRL, AMS MMCR KARL  Starphotometers Moonphotometers Polar winter sites Polar winter  

5. Sampling of Oleg’s PSD inversions What parameters do we compare with the models?

6. These results about a factor of 2 larger than modeling values used in recent publications or about a factor of 5.5 larger in terms of (per particle) backscatter cross section.

7. Pan-Arctic AOD Climatology Barrow-NOAA Barrow-AERONET PEARL OPAL Thule Resolute Bay Alert Hornsund Ny-Alesund Kangerlussuaq Saha et al., 2013

8. MODIS July 8, 2002 FMC

9. Cloud screening 9

10. 10 Cloud screening (EUR: Mar 10, 2011)

11. 11 Cloud screening (EUR: Mar 13, 2011)