Japan Geoscience Union Meeting 2018

Presentation information

[JJ] Poster

A (Atmospheric and Hydrospheric Sciences) » A-CC Cryospheric Sciences & Cold District Environment

[A-CC29] Ice cores and paleoenvironmental modeling

Tue. May 22, 2018 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

convener:Ryu Uemura(University of the Ryukyus), Kenji Kawamura(National Institute of Polar Research, Research Organization of Information and Systems), Ayako Abe-Ouchi(東京大学大気海洋研究所, 共同), Nozomu Takeuchi(Chiba University)

[ACC29-P10] Comparison between the paleo data and climate prediction in the last interglacial by AOGCM with vegetation change

*Ryouta O'ishi1, Ayako Abe-Ouchi1,2, Takashi Obase1 (1.Atmosphere and Ocean Research Institute, the Universitoy of Tokyo, 2.Japan Agency for Marine-Earth Science and Technology)

Keywords:the Last Interglacial, AOGCM, vegetation feedback

The Last Interglacial (LIG; ca. 127,000 years ago) is kown as the warm period induced by the different orbit of the Earth than the present day. Geological evidences indicate Greenland ice sheet reduction and sealevel rise occuerd in the LIG due to the warming, however, prediction by the atmosphere-ocean coupled general circulation models (AOGCMs) still underestimate this warming(Otto-Bliesner et al. 2013). In the present study, we introduce the LIG vegetation distribution predicted by a vegetation coupled GCM (MIROC-LPJ; O’ishi and Abe-Ouchi 2011) as boundary conditions of an AOGCM (MIROC4m; Hasumi and Emori 2004) and examined LIG climate prediction. The result indicates the introduction of LIG vegetation improves warming in the LIG compared with geological evidences. In the presentation we will discuss the contribution of the atlantic meridional ocean circulation (AMOC).