J. Notholt and M. Palm (U. Bremen) – Bruker 120M (0.004 cm-1 resolution), deployed 1992 to 1995. Replaced by Bruker 120HR (0.0028 cm 1 resolution) in 1995. Operates all year with lunar (polar night) observations added since December 1992. Upgraded to 125 HR in 2012.
C. Ritter (AWI) – Multi-wavelength system (excimer and Nd:YAG) making winter measurements between 10 and 45 km since 1991. In 1999 the system was upgraded for tropospheric measurements of aerosol and water vapor. Since 2001 it is a “3+2+1” Raman lidar.
C. Ritter, R. Neuber, and M. Maturilli (AWI) – Multi-wavelength system (excimer and Nd:YAG) making winter aerosol and temperature measurements between 10 and 45 km since 1991. A four-channel receiver was added in 1999 for tropospheric aerosol and water vapor measurements.
P. Von der Gathen (AWI) – Multi-wavelength system (excimer and Nd:YAG) making winter measurements between 13 and 45 km from 1991 - 2011. Operations suspended due to laser failure and insufficient funds for replacement.
T. J. McGee (GSFC), L. Twigg (SSAI), and G. Sumnicht (SSAI) – The STROZ lidar retrieves ozone vertical profiles in the stratosphere from 10 to 50 km. Temperature to ~80 km and aerosols (at 355 nm) to 35 km also are measured. The instrument has also been modified to measure water vapor from near the ground to ~10 km. As a mobile intercomparator, it has participated in an ozone intercomparison in Ny Ålesund in September 1997 and January – February 1998.
J. Notholt (U. Bremen) and O. Schrems (AWI) – Campaign operations in winter of 1993/94; permanent operation in winter/spring since 1995. Participated in a ClO radiometer intercomparison at Ny Ålesund in spring 1997. Intermittent data archived from 1995 to 2003 under previous PI (K. Kunzi).
J. P. Burrows and A. Richter (U. Bremen) – Measurements of ozone, NO2, BrO, IO, and OClO from February to May and August to November. Participated in intercomparison at OHP in June 1996. Database extends back to 1995.
G. Hansen and T. Svendby (NILU) and A. Pazmino and F. Goutail (LATMOS-IPSL) – SAOZ NO2 and ozone system operating since September 1990. Reanalysis of data from 2013 through at least 2016 is currently underway.
AWI: Alfred Wegener Institute
GSFC: NASA Goddard Space Flight Center
NILU: Norwegian Institute for Air Research
NPL: National Physical Laboratory