Wind blown snow crust on the sea ice in Yelverton Inlet (C. Mortimer)

Sierra Pope, Colleen Mortimer and Derek Mueller deciding on a route into Yelverton Inlet (L.Copland)

Sierra Pope takes a break after drilling through sea ice near Petersen Bay (L.Copland)

Luke Copland, Derek Mueller and Sierra Pope get ready to core sea ice in Yelverton Inlet (L.Copland)

Sierra Pope and Colleen Mortimer take sea ice core temperatures (L.Copland)