Q&A with Oceans Melting Greenland scientist Josh Willis

The new NASA airborne mission Oceans Melting Greenland (OMG) will pave the way for improved estimates of sea level rise by addressing the question: To what extent is the ocean melting Greenland’s ice from below? The mission will observe changing water temperatures and glaciers that reach the ocean around Greenland from 2015 to 2020. The OMG data set will complement earlier and ongoing observations of Greenland's melting ice sheet by satellite sensors such as the Gravity Recovery and Climate Experiment (GRACE), which gives a precise measurement of the loss of mass from Greenland, and other airborne programs including NASA's Operation IceBridge, which measures bedrock topography and the depth of the overlying snow and ice.