Carbon Monitoring at the ARM Southern Great Plains Site
Torn, M.S. (a), Berry, J. (b), Fischer, M.L. (a), Billesbach, D. (c), Riley, W. (a), and Zhao, W. (a), Lawrence Berkeley National Laboratory (a), Carnegie Institute of Washington (b), University of Nebraska (c)
Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting
The major challenges ahead in carbon cycle research include bridging plot and global scale analyses of surface fluxes and linking carbon fluxes to water and energy fluxes from natural and managed ecosystems. The ARM Southern Great Plains (SGP) testbed is an ideal area for carbon cycle research because of ARM’s comprehensive atmospheric measurements, the simple topography, and mixture of land uses. This poster describes the development of the carbon measurement network at the ARM SGP site. We illustrate the high precision CO2 and CO2 isotope monitoring system at the 60 m tower of the Central Facility. Preliminary results will be shown from the (1) initial portable eddy flux campaign; (2) 60 m eddy flux system, (3) simulation of CO2 and energy fluxes from wheat and tall grass prairie; and (4) comparison of measured and simulated soil water 18O. In combination with other ARM data, the carbon project will support research on (1) linking atmospheric CO2 levels with energy and water fluxes from the land surface; (2) predicting interannual and long-term carbon fluxes; (3) impact of land use and disturbance on carbon sequestration ; and (4) inverse carbon modeling, by providing new data on net fluxes and isotopic signatures.
Note: This is the poster abstract presented at the meeting; an extended version was not provided by the author(s).
