Ogle, Stephen: Colorado State University (Project Lead)
Andrews, Arlyn: NOAA Earth System Research Laboratory (Co-Investigator)
Breidt, F.: (Co-Investigator)
Davis, Kenneth (Ken): The Pennsylvania State University (Co-Investigator)
Denning, Scott: Colorado State University (Co-Investigator)
Gurney, Kevin: Northern Arizona University (Co-Investigator)
Paustian, Keith: (Co-Investigator)
Tans, Pieter: NOAA (Co-Investigator)
West, Tristram (Tris): DOE (Institution Lead)
Lauvaux, Thomas: LSCE (Participant)
Schuh, Andrew: Colorado State University (Participant)
Spencer, Shannon: Colorado State University (Participant)
Project Funding:
2008 - 2011
NRA: 2007 NASA: Carbon Cycle Science
Funded by NASA
Abstract:
Exchange of CO2 between terrestrial ecosystems and the atmosphere has been a major uncertainty in the global carbon budget, largely due to inconsistencies between estimates using inverse modeling approaches compared to inventory methods. Inventory approaches use spatially disaggregated information on land use activity, climate, soils, energy use, product transport and flux measurements to model the net change in carbon pools and CO2 emissions. In contrast, inverse modeling approaches estimate CO2 fluxes based on change in concentration measurements in the atmosphere. Our objective is to compile, diagnose and reconcile estimates of CO2 exchange from the two approaches, and then evaluate the change in estimated fluxes and uncertainties compared to the original inventory. The study will be a quantitative synthesis of results from ongoing projects funded through the carbon cycle science programs, and will focus on the Mid-Continent Region of North America. Differences between the atmospheric inversions and inventories will be analyzed in the diagnosis step using graphical tools and standard time series techniques to investigate spatial patterns and temporal autocorrelations. The estimates will be reconciled with the development of a state-space model, providing spatially and temporally explicit predictions of the best estimate of CO2 fluxes, by optimally combining data from the original atmospheric inversions and inventories. Remote sensing products derived from NASA satellite imagery will be central to the diagnosis and reconciliation of estimates from the two approaches. We anticipate that the proposed study will reduce uncertainties for regional scale carbon cycle monitoring, provide a better understanding of fluxes in the largely agricultural, Mid-Continent region, and generate a more robust method for reporting of greenhouse gas emissions and developing climate change policy.
Publications:
Cooley, D., Breidt, F. J., Ogle, S. M., Schuh, A. E., Lauvaux, T. 2012. A constrained least-squares approach to combine bottom-up and top-down CO2 flux estimates. Environmental and Ecological Statistics. 20(1), 129-146. DOI: 10.1007/s10651-012-0211-6
Schuh, A. E., Lauvaux, T., West, T. O., Denning, A. S., Davis, K. J., Miles, N., Richardson, S., Uliasz, M., Lokupitiya, E., Cooley, D., Andrews, A., Ogle, S. 2013. Evaluating atmospheric CO2inversions at multiple scales over a highly inventoried agricultural landscape. Global Change Biology. 19(5), 1424-1439. DOI: 10.1111/gcb.12141
Lauvaux, T., Schuh, A. E., Uliasz, M., Richardson, S., Miles, N., Andrews, A. E., Sweeney, C., Diaz, L. I., Martins, D., Shepson, P. B., Davis, K. J. 2012. Constraining the CO<sub>2</sub> budget of the corn belt: exploring uncertainties from the assumptions in a mesoscale inverse system. Atmospheric Chemistry and Physics. 12(1), 337-354. DOI: 10.5194/acp-12-337-2012
Lauvaux, T., Schuh, A. E., Bocquet, M., Wu, L., Richardson, S., Miles, N., Davis, K. J. 2012. Network design for mesoscale inversions of CO2 sources and sinks. Tellus B: Chemical and Physical Meteorology. 64(1), 17980. DOI: 10.3402/tellusb.v64i0.17980
West, T. O., Bandaru, V., Brandt, C. C., Schuh, A. E., Ogle, S. M. 2011. Regional uptake and release of crop carbon in the United States. Biogeosciences. 8(8), 2037-2046. DOI: 10.5194/bg-8-2037-2011
Schuh, A. E., Denning, A. S., Corbin, K. D., Baker, I. T., Uliasz, M., Parazoo, N., Andrews, A. E., Worthy, D. E. J. 2010. A regional high-resolution carbon flux inversion of North America for 2004. Biogeosciences. 7(5), 1625-1644. DOI: 10.5194/bg-7-1625-2010
2011 NASA Carbon Cycle & Ecosystems Joint Science Workshop Poster(s)
- Evaluating atmospheric CO2 inversions from multiple scales over a highly-inventoried agricultural landscape
-- (Andrew Schuh, Thomas Lauvaux, Tristram O. West, Kenneth James Davis, Scott Denning, Stephen M Ogle)
[abstract]
2010 NASA Terrestrial Ecology Science Team Meeting Poster(s)
- Regional carbon budget with a high density concentration tower network: Inversion of CO2 fluxes in the Mid Continental Intensive project
-- (Thomas Lauvaux, Liza Diaz, Natasha Miles, Scott Richardson, Andrew Schuh, Andy Jacobson, Arlyn Andrews, Scott Denning, Ken Davis)
[abstract]
- Comparison of Regional Carbon Dioxide Fluxes from Atmospheric Inversions and Inventories in the Mid-Continent Intensive
-- (Stephen Ogle, Dan Cooley, Andrew Schuh, F Jay Breidt, Ken Davis, Tristram West, Thomas Lauvaux, Linda Heath, Kevin Gurney, Arlyn Andrews, Scott Denning)
[abstract]
More details may be found in the following project profile(s):
