T. Blumenstock (KIT-IMK), U. Raffalski (IRF), and Y. Matsumi (STEL) – Bruker 120HR (0.002 cm 1 resolution) operated since 1996. It is fitted with four detectors for both solar and lunar measurements. Intercompared with the NPL travel instrument in March 1998. Remote control capability exists since 2004. Upgraded to Bruker 125 in 2007.
T. Wagner (MPIC) and U. Platt (U. Heidelberg) – Zenith sky DOAS spectrometer for vertical column densities of O3 and NO2. Began NDACC measurements in August 2015.
DMI: Danish Meteorological Institute
KIT-IMK: Karlsruher Institut für Technologie - Institut für Meteorologie und Klimaforschung (Institute of Meteorology and Climate Research)
IRF: Institut für Rumdfysik (Institute of Space Physics)
MPIC: Max-Planck-Institut für Chemie
NIWA: National Institute of Water and Atmospheric Research
STEL: Solar-Terrestrial Environment Laboratory