Tuesday, 18 June 2013
Bellevue Ballroom (The Hotel Viking)
Isotope thermometry of carbonates from the central Chinese Loess Plateau reveal central China to be a region that experienced much larger temperature change since the Last Glacial Maximum (LGM) than is typically simulated by climate models. A summertime temperature change of 6-7ยบC and a shift to lighter isotopic composition of meteoric waters in the LGM is implied by the data. The suite of Paleoclimate Model Intercomparison Project (PMIP2) simulations contains only a few models that can reproduce the enhanced climate sensitivity of central China under LGM forcing. By comparing the PMIP2 simulation suite, we demonstrate a significant correlation between the stationary wave response to continental ice sheets and LGM cooling in central China, suggesting a strong global teleconnection pattern.
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