glaciologist

noun

1. A scientist who studies glaciers.

   “To most people, the huge ice sheets of Antarctica and Greenland are merely water that once was snow. To glaciologists and climatologists, they are storehouses of the Earth's former atmospheres.”

   “The 10-inch increase forecast in the new study, which does not give a timeline, could be much higher if temperatures continue to rise, as they almost certainly will, said Jason Box, a glaciologist at the Geological Survey of Denmark and Greenland who was the paper’s lead author.”