jason amundson calculate how much melted ice is flowing into the ocean. >> when the glaciers are actually in retreat, the one thing they do is they contribute to sea level rise, but they also affect atmospheric circulation patterns, which propagates downstream. it affects other things. the changes in the amount of freshwater runoff into the ocean, which will affect the ocean properties, which could affect the marine life. >> the global sea level is going to rise, and it will rise by varying amounts depending on where you are in the world, and the contribution from glaciers is likely to be significant. >> digging snow pits has been 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 more successful. salvatore candela is using a powerful ground-penetrating radar, or gpr as it's known, to get information from the vast areas between snow pits using the pits themselves as a reference for his readings. >> the digging of pits and using ground-penetrating radar really ties well together. since i'm ima