Today, Atmospheric Scientist Kelliann Bliss shows us how she takes ozone readings at the South Pole Atmospheric Research Observatory (ARO).

A bit more on ARO, from NOAA:

The Atmospheric Research Observatory (ARO) at the Amundsen-Scott South Pole Station is a National Science Foundation facility used in support of scientific research related to atmospheric phenomena. ARO is located approximately five hundred meters grid east-northeast of the main station, physically separated and generally upwind of all other station facilities.