Science and Validation Validation of ACE-FTS HCFC-22 measurements Validation of ACE-FTS HCFC-22 measurements Validation of ground-based HFC-134a measurements Validation of ground-based HFC-134a measurements MIPAS Ozone Retrieval Version 8 MIPAS Ozone Retrieval Version 8 Stratospheric Profiles from the LIFE Instrument Stratospheric Profiles from the LIFE Instrument FTIR Measurements of Nitric Acid FTIR Measurements of Nitric Acid SAGE III/ISS ozone and NO2 validation SAGE III/ISS ozone and NO2 validation Global climatologies of water vapour and ozone in the UTLS Global climatologies of water vapour and ozone in the UTLS An improved OSIRIS NO\(_2\) profile retrieval An improved OSIRIS NO\(_2\) profile retrieval SPARC Water Vapor Assessment II: UTLS SPARC Water Vapor Assessment II: UTLS Assessment of ACE-FTS stratospheric O\(_3\) Assessment of ACE-FTS stratospheric O\(_3\) Improvement of Odin/SMR \(H_2O\) and Temperature Improvement of Odin/SMR \(H_2O\) and Temperature Validation of SAGE III Water Vapor Validation of SAGE III Water Vapor Geophysical Variability in \(O_3\) Profiles Geophysical Variability in \(O_3\) Profiles Validation of SMILES \(HCl\) Profiles Validation of SMILES \(HCl\) Profiles Validation of Odin/SMR \(CO\) with ACE-FTS Validation of Odin/SMR \(CO\) with ACE-FTS Validation of SAGE III \(O_3\) with ACE-FTS Validation of SAGE III \(O_3\) with ACE-FTS Retrieval and Validation of Water Vapour Retrieval and Validation of Water Vapour Arctic Ozone Loss Arctic Ozone Loss Comparison of MAESTRO \(O_3\) and \(NO_2\) Products Comparison of MAESTRO \(O_3\) and \(NO_2\) Products \(O_3\) and \(NO_2\) in the Arctic \(O_3\) and \(NO_2\) in the Arctic \(NO_y\) Validation \(NO_y\) Validation Water Vapour Over Eureka Water Vapour Over Eureka