Joining Lynn and John on Cool Science Radio this week is Dr. Dalia Kirschbaum, a Research Physical Scientist in the Hydrological Sciences Lab at NASA's Goddard Space Flight Center , in Greenbelt, MD. Dr. Kirschbaum has a number of responsibilities in the study of landslides including developing new techniques for rainfall-triggered landslide hazard assessment and forecasting. She is also the Associate Deputy Project Scientist for Applications for the GPM Mission. GPM stands for Global