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| Titel |
Global distribution of upper tropospheric formic acid from the ACE-FTS |
| VerfasserIn |
G. González Abad, P. F. Bernath, C. D. Boone, S. D. McLeod, G. L. Manney, G. C. Toon |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 9, no. 20 ; Nr. 9, no. 20 (2009-10-23), S.8039-8047 |
| Datensatznummer |
250007708
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| Publikation (Nr.) |
 copernicus.org/acp-9-8039-2009.pdf |
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| Zusammenfassung |
| We present the first near global upper tropospheric distribution of formic
acid (HCOOH) observed from space using solar occultation measurements from
the Fourier transform spectrometer (FTS) on board the Atmospheric Chemistry
Experiment (ACE) satellite. Using a new set of spectroscopic line parameters
recently published for formic acid by Vander Auwera et al. (2007) and Perrin
and Vander Auwera (2007), we have retrieved the concentrations of HCOOH
between 5 km and the tropopause for ACE-FTS observations from February 2004
to September 2007. We observe a significant seasonal dependence for the
HCOOH concentrations related to vegetation growth and biomass burning. We
estimate an emission ratio of 0.0051±0.0015 for HCOOH relative to CO
for tropical South American fires using a selected set of data for September 2004.
Results from the balloon-borne MkIV Fourier transform spectrometer are
also presented and compared with the ACE measurements. |
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