J11.1
Simulation of historical stratospheric temperature trends by the GFDL coupled atmosphere-ocean models
M. Daniel Schwarzkopf, NOAA/GFDL, Princeton, NJ; and V. Ramaswamy
Historical (1861-present) stratospheric temperature trends have been simulated using the GFDL coupled atmosphere-land-ocean models (CM2.0 and CM2.1). Forcing agents include well-mixed greenhouse gases (WMGGs), tropospheric and stratospheric ozone, tropospheric aerosols, solar insolation, volcanoes and changes in land cover. Multi-member ensembles are employed to assess the effects of model variability. The relative roles of the forcing agents are explored in additional historical simulations with natural, anthropogenic and WMGG+ozone changes. Recent (1979 to present) stratospheric temperature trends from the simulations are compared with observations and with results from previous simulations using the GFDL atmospheric model (AM2).
Joint Session 11, stratosphere chemistry/radiation/climate feedback processes (Joint with Middle Atmosphere, Fluid Dynamics and Climate Variations)
Friday, 17 June 2005, 10:30 AM-1:15 PM, Ballroom D
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