S59 Diurnal and Seasonal Patterns of Carbon Dioxide and its Vertical Structure in the Atmosphere

Sunday, 6 January 2019
Hall 4 (Phoenix Convention Center - West and North Buildings)
Morgan Clark, Ohio State University, Columbus, OH; and S. Crowell, E. A. Pillar-Little, P. B. Chilson, X. M. Hu, X. Xiao, J. Basara, and P. Klein

Understanding carbon dioxide (CO2) sources and sinks provides us with the information necessary to control
the planet’s total warming. The planetary boundary layer (PBL) retains a significant amount of emissions.
To understand local emissions, it is useful to partition CO2 emissions between the PBL and free troposphere.
This paper analyzes model output data using the weather research and forecasting, vegetation photosynthesis
respiration model (WRF-VPRM) and manned aircraft data collected in Lamont, Oklahoma. This analysis
studies the vertical gradients of CO2 in the atmosphere as well as the seasonal and diurnal cycles of emissions.
The results are compared to prior studies. The main drivers of CO2 in the PBL are investigated diurnally as
well as for monthly averages.
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