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<article language="en">
	<journal>
		<journal_title>Atmospheric Chemistry and Physics Discussions</journal_title>
		<journal_url>www.atmos-chem-phys-discuss.net</journal_url>
		<issn>1680-7367</issn>
		<eissn>1680-7375</eissn>
		<volume_number>9</volume_number>
		<issue_number>3</issue_number>
		<publication_year>2009</publication_year>
	</journal>
	<doi>10.5194/acpd-9-12465-2009</doi>
	<article_url>http://www.atmos-chem-phys-discuss.net/9/12465/2009/</article_url>
	<abstract_html>http://www.atmos-chem-phys-discuss.net/9/12465/2009/acpd-9-12465-2009.html</abstract_html>
	<fulltext_pdf>http://www.atmos-chem-phys-discuss.net/9/12465/2009/acpd-9-12465-2009.pdf</fulltext_pdf>
	<start_page>12465</start_page>
	<end_page>12482</end_page>
	<publication_date>2009-05-20</publication_date>
	<article_title content_type="html">Global distribution of upper tropospheric formic acid from the ACE-FTS</article_title>
	<authors>
		<author numeration="1" affiliations="1">
			<name>G. González Abad</name>
		</author>
		<author numeration="2" affiliations="1">
			<name>P. F. Bernath</name>
		</author>
		<author numeration="3" affiliations="2">
			<name>C. D. Boone</name>
		</author>
		<author numeration="4" affiliations="2">
			<name>S. D. McLeod</name>
		</author>
		<author numeration="5" affiliations="3,4">
			<name>G. L. Manney</name>
		</author>
		<author numeration="6" affiliations="3">
			<name>G. C. Toon</name>
		</author>
	</authors>
	<affiliations>
		<affiliation numeration="1" content_type="html">Department of Chemistry, University of York, York, UK</affiliation>
		<affiliation numeration="2" content_type="html">Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada</affiliation>
		<affiliation numeration="3" content_type="html">NASA Jet Propulsion Laboratory, California Inst. of Technology, Pasadena, California, USA</affiliation>
		<affiliation numeration="4" content_type="html">also at: New Mexico Institute of Mining and Technology, Socorro, New Mexico, USA</affiliation>
	</affiliations>
	<abstract content_type="html">We present the first near global upper tropospheric distribution of formic
acid (HCOOH) observed from the 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, 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&amp;plusmn;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 used to validate the
ACE measurements.</abstract>
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</article>

