Laura Clor is a gas geochemist who works for the five USGS volcano observatories.

Laura Clor's research focuses on understanding degassing in active volcanic systems, specifically using gases to monitor for signs of unrest at active U.S. volcanoes. She builds, deploys, and maintains field instrumentation that measures both the amount of gas emitted from volcanoes, and also the composition of those gases – these two components together inform us about possible changes in volcanic activity. The photo is from her work on Mount Hood (Oregon) at Crater Rock.