Title:
A Hybrid Local Ensemble Transform Kalman Filter for use with Global Ocean Data Assimilation
Speaker: Stephen Penny, Department of Atmospheric and Oceanic Science, University of Maryland, College Park/Visiting Scientist, National Centers for Environmental Prediction (NCEP)
Location: GSFC, B-33/A-128, Greenbelt, MD
Time: 2:00pm
Host: Amal El Akkraoui
Abstract:The seminar will demonstrate a new approach to hybrid data
assimilation with more robust stability than traditional hybrid methods
when applied to the Lorenz-96 model. This approach comes from the
perspective of stabilizing an Ensemble Kalman Filter rather than the
perspective of incorporating dynamic ensemble information into a
variational method. A hybrid data assimilation scheme was recently
adopted at NCEP for the atmosphere, and this method is being developed
for the ocean as an advancement of the existing Global Ocean Data
Assimilation System.
