Denis Felikson¹, Sophie Nowicki², Isabel Nias², Helene L Seroussi³ and Mathieu Morlighem⁴, (1)NASA Goddard Space Flight Center, Cryospheric Sciences Laboratory, Greenbelt, MD, United States, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (3)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (4)University of California - Irvine, Irvine, CA, United States