- C31D-0966: Sea Ice Albedo Data Assimilation: A Novel Approach to Enhancing Arctic Sea Ice Prediction with Underutilized Observations
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Board 0966‚ Hall EFG (Poster Hall)NOLA CC
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Joseph Rotondo, University of Washington (First Author, Presenting Author)
Molly Wieringa, National Center for Atmospheric Research
Cecilia Bitz, University of Washington
Robin Clancy, University of Oklahoma Norman Campus
Steven Cavallo, University of Oklahoma Norman Campus
Sea ice albedo—how much sunlight ice reflects—plays a key role in how sea ice grows and melts, yet it’s rarely used in current forecasting systems. Most sea ice prediction methods only include a few types of data, like ice concentration and thickness, which miss important surface changes, especially in summer.This study explores whether including albedo in sea ice forecasting could improve accuracy. Using a simplified sea ice model and simulated observations, we tested how adding albedo data affects predictions at four Arctic locations. We applied a method that keeps variables like albedo physically realistic, even when they change over time.
We found that adding albedo data improved or matched the performance of traditional methods in most regions. When we reduced uncertainty in the albedo data—closer to what future satellite missions could achieve—predictions improved across the board. This shows that better measurements of albedo could significantly benefit sea ice forecasts.
Our results suggest that albedo is a valuable but underused resource for improving Arctic sea ice predictions. They support the need for new observing strategies and better integration of albedo into forecasting systems.
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