Session: Warm Climates (Mid-Holocene, Last interglacial, Deep-time, Pliocene)
Author: Pascale Braconnot / firstname.lastname@example.org / LSCE/IPSL,unite mixte CEA-CNRS-UVSQ, Université Paris Saclay, orme des merisers, bât. 712, 91191 Gif sur Yvette Cedex
Co-author: Olivier Marti, LSCE/IPSL;
Yves Balkanski, LSCE/IPSL;
Dan Zhu, LSCE/IPSL;
Arnaud Caubel, LSCE/IPSL;
Anne Cozic, LSCE/IPSL;
The Holocene is characterized by long term changes in seasonality induced by insolation that is punctuated by several climatic events. How different feedbacks from the surface hydrology, vegetation or dust have shaped regional trend, seasonality, variability and abrupt events is not well understood. The poster will present the first results of a small multi complexity ensemble simulation with the IPSL model. The objective is to highlight common long term characteristics in seasonal trends depending on regions, the relationship between trend and variability in Indian and African monsoon regions, as well as teleconnections between the precipitation in these regions and the long term evolution of the ENSO phenomenon in the tropics. A particular focus will be put on vegetation changes and the role they play in trends and interannual to multidecadal variability.