TY - RPRT TI - An Ensemble-Based Smoother with Retrospectively Updated Weights for Highly Nonlinear Systems AU - Chin, T. M. AU - Turmon, M. J. AU - Jewell, J. B. AU - Ghil, M. PY - 2006 UR - https://ntrs.nasa.gov/citations/20070032972 ID - 20070032972 ER -