Regularization of the ensemble Kalman filter for non-local observations: application to elliptic observations

Mathieu Le Provost1, Ricardo Baptista2, Youssef Marzouk2 and Jeff D. Eldredge3, (1)Long Island University, Department of Technology, Innovation and Computer Science, Brooklyn, United States, (2)Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, Cambridge, MA, United States, (3)University of California Los Angeles, Department of Mechanical and Aerospace Engineering, Los Angeles, United States