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: 2006 Western Pacific Geophysics Meeting, 24-27 July 2006, Beijing, China.
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The Miocene Climate Optimum (MCO) at 15 ma is a geologically recent warming event with a temperature of 3o-5oC 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 2oC 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.
|Item Type:||Conference or Workshop Item (Commonwealth Reporting Category E) (Speech)|
|Additional Information:||Abstract only available.|
|Uncontrolled Keywords:||climate modelling, miocene climate optimum, paleoclimatology, carbon dioxide, global temperature, vegetation|
|Fields of Research (FOR2008):||04 Earth Sciences > 0406 Physical Geography and Environmental Geoscience > 040605 Palaeoclimatology|
04 Earth Sciences > 0401 Atmospheric Sciences > 040105 Climatology (excl.Climate Change Processes)
|Subjects:||260000 Earth Sciences > 260600 Atmospheric Sciences > 260602 Climatology (incl. Palaeoclimatology)|
|Socio-Economic Objective (SEO2008):||UNSPECIFIED|
|Deposited On:||11 Oct 2007 10:36|
|Last Modified:||02 Feb 2012 12:03|
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