Sensitivity study of the role of vegetation in miocene climate change

You, John Y. and Muller, Dietmar and Huber, Matthew and Otto-Bliesner, Bette and Poulsen, Chris and Sdrolias, Maria and Ribbe, Joachim (2006) Sensitivity study of the role of vegetation in miocene climate change. In: American Geophysical Union Western Pacific Geophysics Meeting 2006, 24-27 Jul 2006, Beijing, China.

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The Miocene Climate Optimum (MCO) at 15ma is a geologically recent warming event with a temperature of 3-5C higher than today but with atmospheric CO2 only about half its present value. Study of the MCO has implications for present day climate research to elucidate factors other than CO2 which may contribute to current global warming. Here we attempt to study the role of vegetation which can potentially contribute about 2C warming to the MCO. We develop a novel methodology to merge oceanic palaeo-bathymetry grids with continental palaeo-topography grids to produce Miocene boundary condition for palaeoclimate modelling and apply updated NCAR coupled climate models, CCSM3 and CAM3.1. In this presentation, we show recent results of our model simulations inferred from modern conditions and proxies.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: No
Item Status: Live Archive
Additional Information: Abstract only available.
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 11 Oct 2007 00:36
Last Modified: 22 Nov 2013 03:16
Uncontrolled Keywords: climate modelling; miocene climate optimum; paleoclimatology; carbon dioxide; global temperature; vegetation
Fields of Research : 09 Engineering > 0907 Environmental Engineering > 090702 Environmental Engineering Modelling
04 Earth Sciences > 0406 Physical Geography and Environmental Geoscience > 040605 Palaeoclimatology
04 Earth Sciences > 0401 Atmospheric Sciences > 040105 Climatology (excl.Climate Change Processes)
Socio-Economic Objective: D Environment > 96 Environment > 9603 Climate and Climate Change > 960303 Climate Change Models

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