FTS Data
Level 0: Interferograms
Level 1: Spectra
Level 2: Temperature, Pressure and Volume Mixing Ratio (VMR) profiles as a function of altitude
ACE-FTS Level 2 version 1.0, 2.0 and 2.1 datasets were each processed for a limited number of
select occultations. ACE-FTS Level 2 version 2.2 is the current processing version and will
be the first dataset encompassing the entire measurement period.
Level 2 Data include VMR profiles for the following trace gas molecules:
Version 1.0: H2O, O3, N2O, CO, CH4, NO, NO2, HNO3, HF, HCl, N2O5, ClONO2, CCl2F2, CCl3F, COF2, CHF2Cl, HDO, SF6
Version 2.0: H2O, O3, N2O, CO, CH4, NO, NO2, HNO3, HF, HCl, N2O5, ClONO2, CCl2F2, CCl3F, COF2, CHF2Cl, SF6, OCS, HCN, CF4, CH3Cl, C2H2, C2H6, N2
Version 2.1: H2O, O3, N2O, CO, CH4, NO, NO2, HNO3, HF, HCl, N2O5, ClONO2, CCl2F2, CCl3F, COF2, CHF2Cl, SF6, OCS, HCN, CF4, CH3Cl, C2H2, C2H6, N2, ClO
Version 2.2: H2O, O3, N2O, CO, CH4, NO, NO2, HNO3, HF, HCl, N2O5, ClONO2, CCl2F2, CCl3F, COF2, CHF2Cl, HDO, SF6, OCS, HCN, CF4, CH3Cl, C2H2, C2H6, N2, ClO, as well as isotopologues for some of these molecules
Version 3.0: H2O, O3, N2O, CO, CH4, NO, NO2, HNO3, HF, HCl, N2O5, ClONO2, CFC-12 (CCl2F2), CFC-11 (CCl3F), COF2, HCFC-22 (CHClF2), HDO, SF6, OCS, HCN, CF4, CH3Cl, C2H2, C2H6, N2, CO2, H2CO, H2O2, O2, HO2NO2, HCOOH, CH3OH, COCl2, CCl4, COClF, HCFC-142b (ClF2C-CH3), CFC-113 (Cl2FC-CClF2), HCFC-141b (Cl2FC-CH3), as well as isotopologues for some of these molecules
MAESTRO Data
NO2 and O3 profiles are retrieved from the UV spectrometer at the measurement tangent altitudes and interpolated at the regular tangent height grid.
O3 profiles are retrieved from the VISIBLE spectrometer at the measurement tangent altitudes and interpolated at the regular tangent height grid.
Access to the current Level 2 ACE data (version 2.2) is only available to ACE Science Team members and other authorized users but version 1.0 is available via the Public Dataset page.