Exiting AGU session on the MPT

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Exiting AGU session on the MPT

Kerim Hestnes Nisancioglu-3

Dear all,

We would like to invite you and your colleagues to submit abstracts to the session

PP026 - Orbital Forcing of Climate and the mid-Pleistocene Transition at the AGU Fall Meeting 2019.

Confirmed speakers are Maureen Raymo and Peter Huybers

Abstracts can be submitted here: (deadline is <a href="x-apple-data-detectors://0" dir="ltr" x-apple-data-detectors="true" x-apple-data-detectors-type="calendar-event" x-apple-data-detectors-result="0" style="text-decoration-color: rgba(0, 0, 0, 0.258824);">July 31, 2019)


Session Title:

PP026. Orbital Forcing of Climate and the mid-Pleistocene Transition

Session Description:

Climate archives, based on records of oxygen isotopes from marine sediments, show a pronounced change in the periodicity of the glacial cycles during the mid-Pleistocene (~1 million years ago). Before this time, and possibly from the initiation of major glaciations, the periodicity is dominated by the 41 kyr obliquity cycle of orbital insolation. However, in the past million years the ~21 and ~100 kyr cycles of precession and eccentricity have dominated the records of glacial cycles, and the records of atmospheric greenhouse gasses. 

This climate transition, the mid-Pleistocene Transition (MPT), is not fully understood. Nor are the dynamics of the glacial cycles. In this session we welcome contributions with perspectives on the MPT as well as the dynamics of the glacial cycles based on proxy records, theory and models. The topic is also timely in light of ongoing efforts to extract a continuous Antarctic ice core record spanning the MPT.

​Looking forward to seeing you in San Francisco!

Best regards,​

Eivind Olavson Straume, CEED, University of Oslo

Anne Morée, University of Bergen

Kerim Hestnes Nisancioglu, University of Bergen 

Geoffrey Gebbie, Woods Hole Oceanographic Inst.

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