CARBON, WATER, LAND USE & CLIMATE

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Presentation transcript:

CARBON, WATER, LAND USE & CLIMATE Understanding Interannual Variability in Surface-Atmosphere Greenhouse Gas Exchange Ankur R Desai Asst. Professor Atmospheric & Oceanic Sciences University of Wisconsin-Madison Wisconsin Ecology Symposium Fall 2008

Atmospheric CO2

The Carbon Cycle Sarmiento and Gruber (2002)

Modeling Interannual Variations Ricciuto et al (2008)

Future Land-Atmosphere Exchange? Sitch et al (2008), Global Change Biology

Fluxnet

Climate Drivers of Carbon Flux Temperature Precipitation Radiation [CO2]

Climate Drivers of Carbon Flux Interannual ^ Climate Drivers of Carbon Flux Temperature -> Phenology Precipitation -> Drought Radiation -> Light Quality [CO2] -> Acclimation

Phenology

Water Table Sulman et al (in prep) Biogeosciences

Future Directions Interactions and linkages at landscape scale among plants, soil, water bodies, atmosphere, people Regional scale climate impacts on ecosystems and vice versa Variability, change, and feedbacks Disturbance, fire, invasives, forestry Complex systems Terrain, multiple GHGs Ecological data assimilation NEON and Network science

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