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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>7</volume_number>
		<issue_number>4</issue_number>
		<publication_year>2007</publication_year>
	</journal>
	<doi>10.5194/acpd-7-9769-2007</doi>
	<article_url>http://www.atmos-chem-phys-discuss.net/7/9769/2007/</article_url>
	<abstract_html>http://www.atmos-chem-phys-discuss.net/7/9769/2007/acpd-7-9769-2007.html</abstract_html>
	<fulltext_pdf>http://www.atmos-chem-phys-discuss.net/7/9769/2007/acpd-7-9769-2007.pdf</fulltext_pdf>
	<start_page>9769</start_page>
	<end_page>9793</end_page>
	<publication_date>2007-07-05</publication_date>
	<article_title content_type="html">Performance of MAX-DOAS measurements of aerosols at Tsukuba, Japan: a comparison with lidar and sky radiometer measurements</article_title>
	<authors>
		<author numeration="1" affiliations="1">
			<name>H. Irie</name>
			<email>irie@jamstec.go.jp</email>
		</author>
		<author numeration="2" affiliations="1">
			<name>Y. Kanaya</name>
		</author>
		<author numeration="3" affiliations="1">
			<name>H. Akimoto</name>
		</author>
		<author numeration="4" affiliations="1">
			<name>H. Iwabuchi</name>
		</author>
		<author numeration="5" affiliations="2">
			<name>A. Shimizu</name>
		</author>
		<author numeration="6" affiliations="3">
			<name>K. Aoki</name>
		</author>
	</authors>
	<affiliations>
		<affiliation numeration="1" content_type="html">Frontier Research Center for Global Change, Japan Agency for Marine-Earth Science and Technology, 3173-25 Showa-machi, Kanazawa-ku, Yokohama, Kanagawa 236-0001, Japan</affiliation>
		<affiliation numeration="2" content_type="html">National Institute for Environmental Studies, 16-2, Onogawa, Tsukuba, Ibaraki 305-8506, Japan</affiliation>
		<affiliation numeration="3" content_type="html">Department of Earth Science, Faculty of Sciences, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan</affiliation>
	</affiliations>
	<abstract content_type="html">Ground-based Multi-Axis Differential Optical Absorption Spectroscopy
(MAX-DOAS) measurements were performed at Tsukuba, Japan (36.1&amp;deg; N,
140.1&amp;deg; E), in November&amp;ndash;December 2006. The measured spectra of scattered
sunlight are analyzed by DOAS and optimal estimation methods to retrieve the
aerosol optical depth (&amp;tau;) and the vertical profile of the aerosol
extinction coefficient (&amp;sigma;) at 476 nm in the lower troposphere. We
characterize these retrieved quantities through comparisons with coincident
lidar and sky radiometer measurements. The retrieved σ values for
layers of 0&amp;ndash;1 and 1&amp;ndash;2 km agree with lidar data to within 30% and 60%,
respectively, for most cases, including partly cloudy conditions. Results
similar to σ at 0&amp;ndash;1 km are obtained for the retrieved τ
values, demonstrating that MAX-DOAS provides the new, unique aerosol dataset
in the lower troposphere.</abstract>
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</article>

