Measurement Main operator Relevant datasets Precision Time period References GNIP IAEA/WMO ±0.8δ D and ±0.1 From 1961 onwards Dansgaard [5 ] 36 ] MUSICA The Institute for Meteorology and Climate Research (IMK)-Atmospheric Trace Gases and Remote Sensing (ASF) Total-column 10~25 From 1996 onwards Schneider et al. [38 ] NDACC NOAA Total-column <10 From 1991 onwards Schneider et al. [38 ] TCCON Caltech Total-column 5~22 From 2004 onwards (varies among stations) Wunch et al. [37 ] ACE CSA NA From 2004 onwards Bernath et al. [60 ] GOSAT JAXA Total-column 20~40 June 2009 to September 2011 Frankenberg et al. [61 ] IASI CNES ~37 From 2007 onwards Herbin et al. [62 ] IMG JAROS Total-column 20~170 1996 to 1997 Zakharov et al. [63 ] MIPAS ESA 36~111 June 2002 to March 2004 Steinwagner et al. [64 ]65 ] SCIAMACHY ESA Column-averaged 40~100 2003 to 2005 Frankenberg et al. [39 ] TES NASA Total-column ~10 From 2004 onwards Worden et al. [40 ] 66 ]
