# Presentation: 306748

## Mid-Continent Intensive Campaign Synthesis

**Stephen M. Ogle**
**Natural Resources Ecology Laboratory**
**Colorado State University**

**Co-Investigators: K. Davis, A. Andrews, F.J. Breidt, A.S. Denning, D. Cooley, T. West, K. Gurney, A. Hirsch, K. Paustian and P. Tans **
**Contributors (to date): A. Michalak, C. Potter, C. Tonitto, S. Liu, C. Izaurralde, L. Heath**
**Data Support: Bob Cook (MAST-DC)**

## Study Region

## Main Goal of MCI Synthesis

**C**

**CO****2****          CO****2**

**CO****2**

**CO****2**

**CO****2**

**CO****2**

**C**

**Main Goal of MCI Synthesis**

**Compare and reconcile to the extent possible CO****2**** fluxes from inventories and atmospheric inversions**

**Atmospheric Inversions**

**Inventories**

## Quantifying Regional CO2 Fluxes

**Inventory Methods**
**Approaches using activity data and environmental drivers to estimate CO****2**** uptake and/or emission at the earth surface, and these methods typically incorporate measurements and/or modeling (IPCC 2006). **
**MCI using mostly model-based approaches, which are informed by measurements**
**e.g., ecosystem simulation modeling**
**Atmospheric Inversions**
**Approaches utilizing spatio-temporal data on atmospheric concentrations of CO****2**** along with transport models to estimate regional fluxes between the earth surface and atmosphere**

## Supporting Goals

**Compare inventories with independent data (?)**
**Ameriflux**
**NASS-derived NPP estimates for cropland **
**Purpose: Inform comparisons with inversions**
**Not a model inter-comparison study!**
**Comparisons of atmospheric inversion results**
**Purpose: Inform comparisons with inventory data**
**Evaluation of mechanisms driving net fluxes**
**How well do we understand the key drivers based on the study?**

## Interim Synthesis

**Initial comparison of atmospheric inversions and inventory of CO****2**** fluxes for the region**
**Focus on 2000-05**
**Serve as a benchmark for evaluating improvement in flux estimation based on 2007-08 intensive campaign**
**Test approaches and refine for 2007-08 synthesis**
**Tasks to reach the interim synthesis milestone**
**Develop protocol and MAST-DC web support**
**Locate contributors from NACP and related projects**
**Compile Inventory**
**Generate Comparisons**
**Reconcile**

## Inventory Contributions

| Sources | T. West | C. Tonitto | K. Gurney | S. Ogle | L. Heath  | S. Liu | C. Potter | C. Izaurralde |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Fossil Fuel Combustion | X |   | X |   |   |   |   |   |
| Biomass C | X | X |   | X | X | X | X |   |
| Litter C |   | X |   | X |   |   |   |   |
| Soil Organic C | X | X |   | X |   | X |   | X |
| Livestock Respiration | X |   |   |   |   |   |   |   |
| Human Respiration | X |   |   |   |   |   |   |   |
| Agricultural Product Import/Export | X |   |   |   |   |   |   |   |
| Forest Product Import/Export |   |   |   |   | X |   |   |   |
| Waste Management/Landfills |   |   |   |   |   |   |   |   |
| CO2 Flux from Waterways/Lakes  |   |   |   |   |   |   |   |   |

## Inversion Contributors

**A. S. Denning, Colorado State**
**P. Tans and group, NOAA, CarbonTracker**
**A. Michalak, Michigan**

## MAST-DC

- MCI Web page
- WebGIS with MCI spatial information
- Select input driver data
- FTP upload site and meta-data tool for data submissions
- Facilitating discussion among investigators and synthesis groups

## Upcoming Time Line and Events

**Receive remaining contributions – ASAP!!!**
**NACP Investigators Meeting, Feb. 2009**
**Present results from comparisons**
**MCI working group meeting to discuss current results and next steps**
**San Diego, CA**
**Project Workshop in May-June 2009**
**Present results and discuss findings in preparation of manuscripts**
**Colorado State University, Fort Collins, CO**
**Investigators and Contributors**
**Submit manuscripts on interim synthesis, summer 2009**
**... ****Followed by initial work on 2007-08 data**