TY - JOUR AU - Hansen , Georg AU - Aspmo , Katrine AU - Berg , Torunn AU - Edvardsen , Kåre AU - Fiebig , Markus AU - Kallenborn , Roland AU - Krognes , Terje AU - Lunder , Chris AU - Stebel , Kersten AU - Schmidbauer , Norbert AU - Solberg , Sverre AU - Yttri , Karl Espen PY - 2009/12/01 Y2 - 2024/03/28 TI - Atmospheric monitoring at the Norwegian Antarctic station Troll: measurement programme and first results JF - Polar Research JA - POLAR VL - 28 IS - 3 SE - Research/review articles DO - 10.3402/polar.v28i3.6142 UR - https://polarresearch.net/index.php/polar/article/view/2842 SP - 353-363 AB - The Troll Atmospheric Station in Antarctica (72°01?S, 2°32?E, 1309 m a.s.l.) was established and put into operation in early 2007. The main foci of the measurement programme are pollution and aerosols in the transition zone between the coastal zone and the inland ice plateau, complementing existing observation programmes along the Antarctic coast and on the Antarctic Plateau. After one year of operation, the monitoring programme is fully operative, and a comprehensive set of data is being analysed. As far as comparable data are available, there is satisfactory agreement between previous and new data. Both aerosol data and measurements of pollution indicate the episodic influence of coastal air masses throughout the year. Background values of medium long-lived pollutants such as CO, O3 and Hg are up to 50% lower than at corresponding Arctic sites (depending on the season), but are still significant. Total ozone and UV doses manifest the recurring Antarctic stratospheric ozone hole, which was moderately severe, but very persistent in 2007. Specific episodes of elevated aerosol concentration and mercury activation are currently under detailed investigation, and will be published separately. ER -