HR: 17:15h
AN: PP14A-05    [Abstracts]
TI: Climate field reconstructions of Indian Ocean sea surface temperatures
AU: * Anchukaitis, K J
EM: kja@ldeo.columbia.edu
AF: Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W, Palisades, NY 10964, United States
AU: D'Arrigo, R D
EM: rdd@ldeo.columbia.edu
AF: Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W, Palisades, NY 10964, United States
AU: Cook, E R
EM: drdendro@ldeo.columbia.edu
AF: Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W, Palisades, NY 10964, United States
AU: Wilson, R
EM: rob.wilson@ed.ac.uk
AF: School of Geosciences, The University of Edinburgh, Grant Institute, West Mains Road, Edinburgh, EH9 3JW, United Kingdom
AU: Buckley, B M
EM: bmb@ldeo.columbia.edu
AF: Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W, Palisades, NY 10964, United States
AU: Krusic, P J
EM: pjk@ldeo.columbia.edu
AF: Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W, Palisades, NY 10964, United States
AU: Wright, W E
EM: wwright@ldeo.columbia.edu
AF: Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W, Palisades, NY 10964, United States
AU: Palmer, J
AF: Department of Archaeology and Palaeoecology, Lincoln University, P.O. Box 64, Ellesmere Junction Road/Springs Road, Canterbury, 8150, New Zealand
AU: Sakulich, J
EM: sakulich@tennessee.edu
AF: Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W, Palisades, NY 10964, United States
AU: Sakulich, J
EM: sakulich@tennessee.edu
AF: Department of Geography, University of Tennessee, Burchfiel Geography Building, Knoxville, TN 37996, United States
AB: We use coral and tree-ring proxies to reconstruct spatiotemporal patterns of Indian Ocean sea surface temperature (SST) anomalies over the last several centuries. Tropical proxies including Indonesian tree-ring chronologies and coral oxygen isotope series from sites within the region permit skillful estimates of the leading mode of Indian Ocean variability since 1750. Extratropical tree-ring chronologies from continental Asia extend the reconstruction back to the period of the Medieval Climate Anomaly. We examine the sensitivity of our climate field reconstructions to season, proxy selection, and methodology, and assumptions of stationarity. Patterns of low frequency variability in the Indian Ocean and Arabian Sea are compared to marine and terrestrial instrumental fields and paleoclimate reconstructions in order to identify relationships between SST anomalies and changes in the characteristics of the Asian monsoon.
DE: 1616 Climate variability (1635, 3305, 3309, 4215, 4513)
DE: 4916 Corals (4220)
DE: 4920 Dendrochronology
DE: 9340 Indian Ocean
SC: Paleoceanography and Paleoclimatology [PP]
MN: 2007 Fall Meeting