Mader applied his expertise in fluid dynamics to research in the numerical modeling of tsunamis ( 1974 ) and other water waves . Using the full Navier-Stokes AMR ( adaptive mesh refinement ) Eulerian compressible hydrodynamic computer code called SAGE ( SAIC Adaptive Grid Eulerian ) , software developed by SAIC and Los Alamos , he modeled landslide tsunami hazards , such as the 1958 Lituya Bay megatsunami ( 2002 ) and the 1883 eruption of Krakatoa ( 2006 ) . His models are used to evaluate tsunami flooding and to determine which areas need to be evacuated
1883 eruption of Krakatoa
1883 eruption of Krakatoa
Charles L. Mader