S4 Ep3: The operation to survey sea ice - from satellites, skies and seas

Flying low over ice in a timed dance with satellites. Digging 52m of ice cores out on the frozen sea. This is a team tackling Antarctica's sea ice question from every angle! In this group interview, teams from the DEFIANT* and CRYOVEX* projects talk about their epic campaign to 'ground-truth' the data collected from two important satellites that monitor Antarctic sea ice - ESA's CryoSat-2 and…