HR: 0800h
AN: C21B-0446    [Abstracts]
TI: Pervasive coupling between interglacial CO2 concentrations, temperature, and sea level
AU: * Siddall, M
EM: siddall@ldeo.columbia.edu
AF: Dept. Earth Sciences, University of Bristol, Wills Memorial Building Queen's Road, Bristol, BS8 1RJ, United Kingdom
AU: Rohling, E J
EM: ejr@noc.soton.ac.uk
AF: School of Ocean and Earth Sciences, National Oceanography Centre, Southampton, European Way, Southampton, SO14 3ZH, United Kingdom
AB: There is a pressing need to better constrain the impact of anthropogenic climate forcing on global sea level [IPCC, 2007]. We push the benthic isotope record to derive sea level during all interglacial sea-level highstand periods of the last 650 000 years. We demonstrate that a pervasive coupling exists between sea level, atmospheric CO2 concentrations, and Antarctic temperature. This relationship is best explained in terms of a combination of insolation variation and greenhouse-gas concentrations.
DE: 0726 Ice sheets
DE: 1621 Cryospheric change (0776)
DE: 1641 Sea level change (1222, 1225, 4556)
DE: 4934 Insolation forcing
SC: Cryosphere [C]
MN: 2007 Fall Meeting