BGC WG Plans (short term)(2005-2006)

• Emphasis on coupled carbon work• CSM1.0—coupled carbon cycle done

– OCMIP’, CASA’ (Fung, Doney et al.)

• CCSM3.0—coupled carbon cycle (T31 x3)– C4MIP-Phase I (land/atmos histfuture)

• CLM-CN (Thornton) spin up done• CASA’ (Fung/Hoffman) spin up started

– Phase II: (land/ocean/atmos)• OCMIP’, CASA’ (Fung, Hoffmann, Doney)• Ocean ecosystem, CLM-CN (Thornton,Doney, Moore)

BGC WG (2006-2009)• Goal of WG meetings:

– Help decide which carbon scenarios will be in next IPCC through lobbying

– Make sure we are set up to do them– Try to analyze runs to be sure that basic ‘physics’ is correct

• CCSM3—add on dust/iron (need computer time)• CCSM3—add on reactive nitrogen (need FV)• CCSM3—add on all aerosols to include climate

feedback• (more ideas in BGC-white paper)• INCITE? T85 versions of CCSM3 simulations

Problems:

• Computer time

• Software engineering help

• PI limitations (developing state of the art codes, analyzing)