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Title:Trends In Atmospheric Composition From The Atmospheric Chemistry Experiment (ace) Satellite
Author(s):Bernath, Peter F.
Contributor(s):Crouse, Jeff; Boone, Chris
Subject(s):Atmospheric science
Abstract:After almost 18 years in low-Earth orbit, the ACE satellite is making near-real time measurements of numerous trace gases, thin clouds, aerosols and temperature by solar occultation. The primary instrument is a high-resolution (0.02 cm$^{-1}$) infrared Fourier transform spectrometer (FTS) operating in the 750--4400 cm$^{-1}$ region, which provides data for the vertical distribution of trace gases. Our current version of ACE-FTS processing, v.4.1, retrieves an unprecedented 44 molecules (H$_2$O, O$_3$, N$_2$O, NO, NO$_2$, HNO$_3$, N$_2$O$_5$, H$_2$O$_2$, HO$_2$NO$_2$, O$_2$, N$_2$, SO$_2$, HCl, HF, ClO, ClONO$_2$, CFC-11, CFC-12, CFC-113, COF$_2$, COCl$_2$, COFCl, CF$_4$, SF$_6$, CH$_3$Cl, CCl$_4$, HCFC-22, HCFC-141b, HCFC-142b, HFC-134a, HFC-23, CO, CH$_4$, CH$_3$OH, H$_2$CO, HCOOH, C$_2$H$_2$, C$_2$H$_6$, OCS, HCN, CH$_3$C(O)CH$_3$, CH$_3$CN, PAN (CH$_3$C(O)OONO$_2$), high and low altitude CO$_2$ as well as 24 additional isotopologues. ACE monitors the Montreal Protocol on substances that deplete the ozone layer, and all of the main greenhouse gases, including CO$_2$. Altitude-latitude distributions and trends in atmospheric abundance will be presented for a subset of the ACE molecules including new research retrievals for HOCl. See for more information.
Issue Date:2021-06-24
Publisher:International Symposium on Molecular Spectroscopy
Genre:Conference Paper / Presentation
Date Available in IDEALS:2021-09-24

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