Session 3a | 
|   | Sea Ice Properties: Observed and Modeled (Parallel with Session 3B) | 
|   | Organizer: Ron Lindsay, APL, Univ. of Washington, Seattle, WA 
 | 
 | 8:30 AM | 3a.1 | Observations and modeling of structural-optical properties in first-year sea ice (INVITED)     Bonnie Light, University of Washington, Seattle, WA | 
 | 9:00 AM | 3a.2 | The role of melt ponds in the evolution of Arctic summer pack ice albedos (INVITED)    Hajo Eicken, University of Alaska, Fairbanks, AK; and D. K. Perovich and T. C. Grenfell | 
 | 9:30 AM | 3a.3 | Thermodynamic Ice Model Simulations of SHEBA: Initialization and Albedo Sensitivities     John W. Weatherly, U.S. Army Cold Regions Research and Engineering Lab, Hanover, NH | 
 | 9:45 AM | 3a.4 | Evaluation of the Year 2000 Arctic Ice Pack Using MODIS     Siri Jodha Singh Khalsa, Emergent Information Technologies, Inc., Boulder, CO; and G. R. Scharfen |