Orals

CL1.07

Climate response to orbital forcing (including Milutin Milankovic Medal Lecture by Jacques Laskar)

The pacing of the global climate system by orbital variations is clearly demonstrated in the timing of e.g. glacial-interglacial cycles. The mechanisms that translate this forcing into geoarchives and climate changes continue to be debated. We invite submissions that explore the climate system response to orbital forcing, 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, and also older climate transitions). Submissions exploring proxy data and/or modelling work are welcomed, as this session aims to bring together proxy-based, theoretical and/or modelling studies focused on global and regional climate responses to astronomical forcing at different time scales in the Phanerozoic.
Anna-Joy Drury will give an invited presentation about 'Fingerprinting the climate heartbeat of the late Miocene'.

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Co-organized as SSP2.12

Convener: Christian Zeeden | Co-conveners: Anne-Christine Da Silva, Stefanie Kaboth-Bahr, Matthias Sinnesael, Nicolas Thibault

Orals

| Wed, 10 Apr, 14:00–18:00

Room F2

Posters

| Attendance Wed, 10 Apr, 10:45–12:30

Hall X5

Wednesday, 10 April 2019 | Room F2

Chairperson: Christian Zeeden, Anne-Christine Da Silva

14:00–15:00 |

EGU2019-18523

Astronomical solutions for paleoclimate studies. Historical views and new challenges.

Jacques Laskar

15:00–15:15 |

EGU2019-1310

| solicited

| Highlight

Fingerprinting the climatic heartbeat of the late Miocene

Anna Joy Drury, Thomas Westerhold, David Hodell, Heiko Pälike, Fiona Rochholz, Diederik Liebrand, Ze Tao, Paul Minton, Bridget Wade, and Roy Wilkens

15:15–15:30 |

EGU2019-1743

Orbital control of productivity and of sea-ice production/drifting in the central Arctic Ocean during the late Quaternary

Claude Hillaire-Marcel, Anne de Vernal, Yanguang Liu, Jenny Maccali, Karl Purcell, Bassam Ghaleb, Allison Jacobel, Rüdiger Stein, Jerry McManus, and Michel Crucifix

15:30–15:45 |

EGU2019-4724

Orbital control of global surface temperature: the role of tropical cloud feedbacks Axel

Sun-Seon Lee and Axel Timmermann

Coffee break

Chairperson: Matthias Sinnesael, Nicolas Thibault

16:15–16:30 |

EGU2019-2672

Response of seasonal cycle and interannual variability of SST in the eastern equatorial Pacific to orbital forcing during the Holocene and Eemian from model simulations

Vyacheslav Khon, Birgit Schneider, Mojib Latif, and Wonsun Park

16:30–16:45 |

EGU2019-11644