Wet Bulb Globe Temperautre
Airman 1st Class Mathew Footit, a 19th Aerospace Medical Squadron bio and enviromental technician, sets up a wet bulb globe temperature monitor July 3, 2012, at Little Rock Air Force Base, Ark. The monitor caluculates temperatures, which are used to assign heat stress categories. (U.S. Air Force photo by Airman 1st Class Rusty Frank)