CL2.2Paleoclimates from the Cretaceous to the Holocene: learning from numerical experiments and model-data comparisons
|Conveners: Masa Kageyama , Erin McClymont | Co-Conveners: André Paul , Dan Lunt , Michal Kucera|
The pacing of the global climate system by orbital variations is clearly demonstrated in the timing of glacial-interglacial cycles, but the mechanisms that translate this forcing into regional and global climate changes continue to be debated. Modelling paleoclimates and the transitions between different climatic states still represents a challenge for models of all complexities. At the same time, the past offers a unique possibility to test models that are used to predict future climate.
We invite submissions that explore the climate system response to orbital forcing, that seek to support or refute the traditional Milankovitch view of a northern hemisphere ice-sheet control, and that test the stability of these relationships under different climate regimes or across evolving climate states (e.g. mid Pleistocene transition, Pliocene-Pleistocene transition, Miocene vs Pliocene). Submissions exploring proxy data and/or modelling work, and employing orbitally paced proxy records for timescale construction, are welcomed. We further invite papers on paleoclimate model simulations, including time-slices (as in the Paleoclimate Modelling Intercomparison Project or PlioMIP) and transient simulations of climate variations on timescales ranging from millennial to glacial cycles and beyond. This session has its focus on (but is not restricted to) the Cenozoic and Cretaceaous.
Comparison of different models (complex GCMs, EMICs and/or conceptual models) and between models and data are particularly encouraged.
This is a partner session to: "CL5.16 - Using paleoclimate modelling and data to learn about the future" (organised by J. Hargreaves et al).