Submission deadline is 9/10 23:59 UT. Thanks for your submissions.
Dear Isogeochemists,
Please consider submitting an abstract for session PP24, "Advancing Process
Understanding in Proxy Climate Data", at the Fall 2008 AGU Meeting, December
15-19, in San Francisco. We expect the session to have a strong theme in
modeling of the water isotopes as expressed in a variety of proxy climate
records, so contributions from ISOGEOCHEM subscribers are particularly
encouraged.
Session description:
PP 24 ADVANCING PROCESS UNDERSTANDING IN PROXY CLIMATE DATA
Reconstructions of past climates rely on proxy data that to first
order exhibit relatively simple dependencies on specific climate
variables. However, as we interpret more subtle details of these
datasets on timescales for which their calibration is not directly
established, multivariate and frequency dependencies may become
important to constrain the significant systematic uncertainties in the
representation of climate by a single proxy archive. One approach to
identifying possible interpretational biases is to advance our process
understanding of how proxies are formed. Modeling the proxies
themselves may have the advantages of reliance on physical, biological
and/or chemical first principles and more stable statistical behavior.
The results may form the basis for more stable formulations of the
inverse problem of reconstructing climate fields from proxy
observations.
The goal of this session is to provide an overview of the state of the
art of such techniques and models, compare the uncertainties between
proxy archives, and to discuss the challenges they present for
local/regional climate reconstructions as well as large scale climate
field reconstructions. Contributions from all high-resolution
(seasonal to millennial) proxy archives are encouraged. Additionally,
studies illuminating differences between process and regression-based
and pseudo-proxy reconstructions which serve to illustrate potential
biases under perfectly known conditions are welcome.
Conveners:
Nicholas Graham, Scripps and Hydrologic Research Center,CA, USA;
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Michael Evans, University of Maryland, MD, USA;
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Jason Smerdon, Lamont Doherty Earth Observatory, NY, USA;
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Caspar Ammann, National Center for Atmospheric Research, CO, USA;
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Please note that abstract submissions are due September 10, 2359UT,
via the AGU server. For more information, please see
http://www.agu.org/meetings/fm08/
To submit an abstract, please go to
http://www.agu.org/meetings/fm08/index.php/Program/HomePage
Please contact a convener with questions. Thank you for your interest; we look
forward to an exciting session in San Francisco.
--
Michael Evans ph: 301-405-8763
Department of Geology & ESSIC fax: 301-314-7970
University of Maryland email: [log in to unmask]
CSS 3239, College Park, MD 20742 http://ic.ltrr.arizona.edu/
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