To progress from monitoring atmospheric composition to investigating and quantifying atmospheric changes, well-characterized measurements over many years are required. The long lifetime of the Atmospheric Chemistry Experiment (ACE) has provided more than a decade of composition measurements that contribute to our understanding of ozone recovery, climate change and pollutant emissions [Bernath et al., 2005; 2017]. The primary ACE instrument on SCISAT is a high-resolution (0.02 cm-1) Fourier Transform Spectrometer (ACE-FTS) operating between 750 and 4400 cm-1. The ACE-FTS data set provides profiles of temperature, pressure, and volume mixing ratios of more than 30 atmospheric trace gas species, as well as 20 subsidiary isotopologues of the most abundant trace atmospheric constituents [Boone et al., 2005; 2013]. The profiles from this Canadian scientific satellite mission provide altitude-resolved data that are necessary for understanding processes that occur at specific altitudes or over limited vertical length scales. This poster will describe recent validation comparisons for the ACE-FTS version 3.5 data set and describe the drift analyses that are being undertaken to characterize these data to enable the generation of climate data records. The species/parameters included in the v3.5 ACE-FTS data set are: o Tracers and other species: H2O, O3, N2O, NO, NO2, HNO3, N2O5, HNO4, N2, O2, H2O2 o Halogen containing species: HF, HCl, ClONO2, CFC-11 (CCl3F), CFC-12 (CCl2F2), CFC-113 (CCl2FCClF2), HCFC-22 (CHClF2), HCFC-141b (CH3CFCl2), HCFC-142b (CH3CClF2), CH3Cl, SF6, CF4, CCl4, COF2, COCl2, COClF o Carbon-containing gases: CO, CH4, CH3OH, H2CO, HCOOH, C2H2, C2H6, OCS, CO2 (above 60 km), HCN and pressure / temperature from CO2 lines o Isotopologues: H218O, H217O, HDO, 13CO2,18O12C16O, 17O12C16O, 18O13C16O, 18O16O16O, 16O18O16O, 16O17O16O, 14N15N16O, 15N14N16O, N218O, N217O, 13C16O, 12C18O, 12C17O, 13CH4, CH3D, OC34S, and O13CS
Validation and Drift Analysis for the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) Trace Gas Data Set
Piera Raspollini
2016
Abstract
To progress from monitoring atmospheric composition to investigating and quantifying atmospheric changes, well-characterized measurements over many years are required. The long lifetime of the Atmospheric Chemistry Experiment (ACE) has provided more than a decade of composition measurements that contribute to our understanding of ozone recovery, climate change and pollutant emissions [Bernath et al., 2005; 2017]. The primary ACE instrument on SCISAT is a high-resolution (0.02 cm-1) Fourier Transform Spectrometer (ACE-FTS) operating between 750 and 4400 cm-1. The ACE-FTS data set provides profiles of temperature, pressure, and volume mixing ratios of more than 30 atmospheric trace gas species, as well as 20 subsidiary isotopologues of the most abundant trace atmospheric constituents [Boone et al., 2005; 2013]. The profiles from this Canadian scientific satellite mission provide altitude-resolved data that are necessary for understanding processes that occur at specific altitudes or over limited vertical length scales. This poster will describe recent validation comparisons for the ACE-FTS version 3.5 data set and describe the drift analyses that are being undertaken to characterize these data to enable the generation of climate data records. The species/parameters included in the v3.5 ACE-FTS data set are: o Tracers and other species: H2O, O3, N2O, NO, NO2, HNO3, N2O5, HNO4, N2, O2, H2O2 o Halogen containing species: HF, HCl, ClONO2, CFC-11 (CCl3F), CFC-12 (CCl2F2), CFC-113 (CCl2FCClF2), HCFC-22 (CHClF2), HCFC-141b (CH3CFCl2), HCFC-142b (CH3CClF2), CH3Cl, SF6, CF4, CCl4, COF2, COCl2, COClF o Carbon-containing gases: CO, CH4, CH3OH, H2CO, HCOOH, C2H2, C2H6, OCS, CO2 (above 60 km), HCN and pressure / temperature from CO2 lines o Isotopologues: H218O, H217O, HDO, 13CO2,18O12C16O, 17O12C16O, 18O13C16O, 18O16O16O, 16O18O16O, 16O17O16O, 14N15N16O, 15N14N16O, N218O, N217O, 13C16O, 12C18O, 12C17O, 13CH4, CH3D, OC34S, and O13CSI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
