river direction in each watershed to pass water to the oceans Images of the RTMs river basins with vectors representing river flow direction Global Asia Europe North America South America Flux Coupler The method of tying the components together and allowing the exchange of fluxes and variables is the flux coupler. The flux coupler is fully implemented. Since the grid components are different, there is ar interpolation scheme for passing information between the atmospheric component grid and the ocean/sea ice grid that has been developed by P. Jones of LANL. An important part of the IPCC debate (IPCC, 1994)is the concept of stabilizing CO2 and trace gas emissions at some reference level. Depending on the reference level of stabilization, various climate change patterns could result. We have run many experiments with greenhouse gas concentrations and sulfate aerosol scenarios We have been asked to perform some National Assessment simulations that can be used by the climate impacts community. All of these experiments are related to the energy mission of the dOe We also intend to perform climate change detection/attribution experiments with various combinations of forcing from ozone changes, biomass burning, and solar forcing, in addition to increased greenhouse gases and sulfate aerosols. Some of the experiments will start from the 1870 initial condition and run to the present, and then extended to the year 2103 river direction in each watershed to pass water to the oceans. Images of the RTM's river basins with vectors representing river flow direction Global Asia Europe North America South America Flux Coupler The method of tying the components together and allowing the exchange of fluxes and variables is the flux coupler. The flux coupler is fully implemented. Since the grid components are different, there is an interpolation scheme for passing information between the atmospheric component grid and the ocean/sea ice grid that has been developed by P. Jones of LANL. Present and Future Experiments An important part of the IPCC debate (IPCC, 1994) is the concept of stabilizing CO2 and trace gas emissions at some reference level. Depending on the reference level of stabilization, various climate change patterns could result. We have run many experiments with greenhouse gas concentrations and sulfate aerosol scenarios We have been asked to perform some National Assessment simulations that can be used by the climate impacts community. All of these experiments are related to the energy mission of the DOE. We also intend to perform climate change detection/attribution experiments with various combinations of forcing from ozone changes, biomass burning, and solar forcing, in addition to increased greenhouse gases and sulfate aerosols. Some of the experiments will start from the 1870 initial condition and run to the present, and then extended to the year 2100