will rise by varying amounts depending on where you are in the world, and the contribubution from glacie is like to o beignififint. >> diggining sn pitits s beenen useful for almost 60 years on the juno icefield, but when these snow pits are paired with new ground-breaking technologies, the science becomes even m more successful. salvatore candela is using a powerful ground-penetratating radar, or gpr as it's known, to gett information from the vastt areas between snow pipits using the pits thememselves as a refeference for hihis readings. >> the diggingng of pits and usg ground-penetrtrating radar realy tieses well together. since i''m imaging what's in the ground and they're actually digging in the area i'm imaging, they compliment each other in that if i have a question about what i'm seeing on the radar, i can go jump in a 5-meter-deep hole and actually see what is there. and bybyairing theheir visual observations with what's on the radar, it allows us to o come ta much stronger concnclusion about whwhere the annual l layer is or where a specificic densi change might be that they're