Tim Griffis of the Biometeorology Group

Associate Professor

I arrived at the University of Minnesota in February 2002 after completing an NSERC Postdoctoral Fellowship at the University of British Columbia with Dr. T.A. Black. While the majority of my research has focused on measuring and modeling carbon cycle processes in wetlands and forests I am beginning to study how land use change impacts carbon cycling and the isotopic composition of atmospheric CO2. There is much we can learn about biophysical processes by comparing and contrasting the differences between natural and managed systems. Managed systems, with ideal logistics also provide an opportunity to help develop new micrometeorological techniques for application in complex environments.

Current Research Interests:

1. Impacts of land use change on carbon cycling and atmospheric greenhouse gases.

2. Micrometeorological and stable isotope applications.

3. Impacts of land use and climate variation on ecosystem 13C and 18O discrimination.

4. Influence of atmospheric circulation and land surface characteristics on trends in atmospheric water vapor and its isotopic composition.

5. Biophysical modeling of land-atmosphere isotopic CO2 and water vapor exchange using ALEX.

6. Parallel process studies at the mesocosm, ecosystem, and regional scales.