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<article language="en">
	<journal>
		<journal_title>Climate of the Past Discussions</journal_title>
		<journal_url>www.clim-past-discuss.net</journal_url>
		<issn>1814-9340</issn>
		<eissn>1814-9359</eissn>
		<volume_number>5</volume_number>
		<issue_number>3</issue_number>
		<publication_year>2009</publication_year>
	</journal>
	<doi>10.5194/cpd-5-1697-2009</doi>
	<article_url>http://www.clim-past-discuss.net/5/1697/2009/</article_url>
	<abstract_html>http://www.clim-past-discuss.net/5/1697/2009/cpd-5-1697-2009.html</abstract_html>
	<fulltext_pdf>http://www.clim-past-discuss.net/5/1697/2009/cpd-5-1697-2009.pdf</fulltext_pdf>
	<start_page>1697</start_page>
	<end_page>1729</end_page>
	<publication_date>2009-06-30</publication_date>
	<article_title content_type="html">An introduction to stable water isotopes in climate models: benefits of forward proxy modelling for paleoclimatology</article_title>
	<authors>
		<author numeration="1" affiliations="1">
			<name>C. Sturm</name>
			<email>christophe.sturm@geo.su.se</email>
		</author>
		<author numeration="2" affiliations="1">
			<name>Q. Zhang</name>
		</author>
		<author numeration="3" affiliations="2">
			<name>D. Noone</name>
		</author>
	</authors>
	<affiliations>
		<affiliation numeration="1" content_type="html">Bert Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden</affiliation>
		<affiliation numeration="2" content_type="html">ATOC &amp; CIRES, University of Colorado, Colorado, USA</affiliation>
	</affiliations>
	<abstract content_type="html">Stable water isotopes have been measured in a wide range of climate
archives, with the purpose of reconstructing regional climate
variations. Yet the common assumption that the isotopic signal is a
direct indicator of temperature proves to be misleading under
certain circumstances, since its relationship with temperature also
depends on e.g. atmospheric circulation and precipitation
seasonality. The present article introduces the principles, benefits
and caveats of using climate models with embedded water isotopes as
a support for the interpretation of isotopic climate archives. A
short overview of the limitations of empirical calibrations of
isotopic proxy records is presented, with emphasis on the physical
processes that infirm its underlying hypotheses. The simulation of
climate and its associated isotopic signal, despite difficulties
related to downscaling and intrinsic atmospheric variability, can
provide a &quot;transfer function&quot; between the isotopic signal and the
considered climate variable. The multi-proxy data can then be
combined with model output to produce a physically consistent
climate reconstruction and its confidence interval. A sensitivity
study with the isotope-enabled global circulation model CAM3iso
under idealised present-day, pre-industrial and mid-Holocene is
presented to illustrate the impact of a changing climate on the
isotope-temperature relationship.</abstract>
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