G. Vaughan (U. Manchester) – SAOZ system for NO2 and ozone operated since 1991. Also operated at Lerwick, UK (60.1?N, 1.1?E) and Aberdeen, UK (57?N, 2?W) during the EASOE (November 1991 to April 1992) and SESAME (February to April 1994) campaigns, respectively. Ceased operations in May 2019 due to GPS failure.
EASOE: European Arctic Stratospheric Ozone Expedition
ECC: Electrochemical Concentration Cell (relates to ozonesondes)