Chemical Imaging of Airborne Soil Organic Particles from Land-atmosphere Interactions
EMSL Project ID
50226
Abstract
Recent discovery of solid (glassy) atmospheric soil organic particles (ASOP), emitted through atmosphere-land-surface interactions in the area of Southern Great Plains (SGP) suggests that ASOP may have a regional-scale impact on the atmospheric environment. Systematic investigation of this newly discovered type of organic particles will have important implications for multiple aspects of environmental science. Initial results revealed unique properties of ASOP (macro-molecular organic composition, solid (glassy) phase and refractory nature) and indicated their potential to affect the atmospheric environment and the carbon cycle in the area. The objective of the proposed project is to conduct in-depth chemical imaging of particles and molecular-level studies of physicochemical properties of ASOP typical for the SGP area, and obtain fundamental knowledge for predictive understanding of their environmental impact including radiative properties and cloud forming potential. The ultimate goal is to provide experimental data necessary for parameterization of ASOP properties in in atmospheric and climate models. Project Details
Project type
Large-Scale EMSL Research
Start Date
2018-10-01
End Date
2021-03-31
Status
Closed
Released Data Link
Team
Principal Investigator
Co-Investigator(s)
Team Members
Related Publications
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China S., D.P. Veghte, A. Ahkami, J. Weis, G.C. Jansson, A.B. Guenther, and M.K. Gilles, et al. 2020. "Microanalysis of Primary Biological Particles from Model Grass Over its Lifecycle." ACS Earth and Space Chemistry 4, no. 10:1895-1905. PNNL-SA-155549. doi:10.1021/acsearthspacechem.0c00144
Fraund M.W., D. Bonanno, S. China, D.Q. Pham, D.P. Veghte, J. Weis, and G.R. Kulkarni, et al. 2020. "Optical properties and composition of viscous organic particles found in the Southern Great Plains." Atmospheric Chemistry and Physics 20, no. 19:11593-11606. PNNL-SA-152289. doi:10.5194/acp-20-11593-2020
Tomlin J.M., K. Jankowski, F. Rivera-Adorno, M.W. Fraund, S. China, B.H. Stirm, and R. Kaeser, et al. 2020. "Chemical Imaging of Fine Mode Atmospheric Particles Collected from a Research Aircraft over Agricultural Fields." ACS Earth and Space Chemistry 4, no. 11:2171–2184. PNNL-SA-155550. doi:10.1021/acsearthspacechem.0c00172