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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>8</volume_number>
		<issue_number>2</issue_number>
		<publication_year>2008</publication_year>
	</journal>
	<doi>10.5194/acpd-8-7315-2008</doi>
	<article_url>http://www.atmos-chem-phys-discuss.net/8/7315/2008/</article_url>
	<abstract_html>http://www.atmos-chem-phys-discuss.net/8/7315/2008/acpd-8-7315-2008.html</abstract_html>
	<fulltext_pdf>http://www.atmos-chem-phys-discuss.net/8/7315/2008/acpd-8-7315-2008.pdf</fulltext_pdf>
	<start_page>7315</start_page>
	<end_page>7337</end_page>
	<publication_date>2008-04-16</publication_date>
	<article_title content_type="html">Airborne in-situ measurements of vertical, seasonal and latitudinal distributions of carbon dioxide over Europe</article_title>
	<authors>
		<author numeration="1" affiliations="1">
			<name>C. Gurk</name>
		</author>
		<author numeration="2" affiliations="1">
			<name>H. Fischer</name>
			<email>hofi@mpch-mainz.mpg.de</email>
		</author>
		<author numeration="3" affiliations="1">
			<name>P. Hoor</name>
		</author>
		<author numeration="4" affiliations="1">
			<name>M.G. Lawrence</name>
		</author>
		<author numeration="5" affiliations="1">
			<name>J. Lelieveld</name>
		</author>
		<author numeration="6" affiliations="2">
			<name>H. Wernli</name>
		</author>
	</authors>
	<affiliations>
		<affiliation numeration="1" content_type="html">Max Planck Institute for Chemistry, POB 3060, 55020 Mainz, Germany</affiliation>
		<affiliation numeration="2" content_type="html">Institute for Atmospheric Physics, University of Mainz, Germany</affiliation>
	</affiliations>
	<abstract content_type="html">Airborne in-situ observations of carbon dioxide (CO&lt;sub&gt;2&lt;/sub&gt;) were made during
7 intensive measurement campaigns between November 2001 and April 2003 as
part of the SPURT project. Vertical profiles and latitudinal gradients in
the upper troposphere/lowermost stratosphere were measured along the western
shore of Europe from the subtropics to high northern latitudes during
different seasons. In the boundary layer, CO&lt;sub&gt;2&lt;/sub&gt; exhibits a strong
seasonal cycle with the maximum mixing ratios in winter and minimum values
in summer, reflecting the strength of CO&lt;sub&gt;2&lt;/sub&gt; uptake by vegetation.
Seasonal variations are strongest in high latitudes and propagate to the
free troposphere and lowermost stratosphere, although with reduced
amplitude, resulting in increasing CO&lt;sub&gt;2&lt;/sub&gt; mixing ratios with altitude
during the summer. In the lowermost stratosphere, the CO&lt;sub&gt;2&lt;/sub&gt; seasonal
cycle is phase-shifted relative to the free troposphere by approximately 3
months, with highest mixing ratios during the summer.</abstract>
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</article>

