Carbon Cycle Observation Advances at NCAR

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Presentation transcript:

Carbon Cycle Observation Advances at NCAR Measurements: Airborne Carbon in the Mountains Experiment (ACME ’04) NACP Mid-continent Intensive (ACME-MINT ’07) Regional Atmospheric Continuous CO2 Network (RACCOON) HIAPER Pole-to-Pole Observations (HIPPO ’08) Instrument Developments: Autonomous Inexpensive Robust CO2 Analyzer (AIRCOA) Difference Frequency Generation 13C Instrument Community Airborne Oxygen Instrument Britton Stephens, EOL and TIIMES

Background CO2 measurements define global trends and loosely constrain continental-scale fluxes TransCom 3 Study Fluxes 2 1 -1 -2 60 30 -30 -60 Expected from fossil fuel emissions Billion $ Pg C / yr

Regional Atmospheric Continuous CO2 Network in the Rocky Mountains (Rocky RACCOON) Autonomous, Inexpensive, Robust CO2 Analyzer (AIRCOA) Existing () and Planned (O) Sites Potential Future Sites (O)

HIAPER Pole-to-Pole Observations of Atmospheric Tracers HIPPO ’08 (PIs: Harvard, NCAR, Scripps, and NOAA): A global and seasonal survey of CO2, O2, CH4, CO, N2O, H2, SF6, COS, CFCs, HCFCs, O3, H2O, and hydrocarbons NCAR Community Airborne Oxygen Instrument 4 s precision equivalent to detecting removal of 1 O2 molecule from 2.5 million molecules of air