Atmospheric organics response to changes in climate, nutrients and stress in a tropical forest
EMSL Project ID
48806
Abstract
Living organisms produce copious amounts of a diverse array of metabolites. Some of these compounds are released into the atmosphere where they participate in numerous chemical reactions that determine the atmospheric abundance of important short-lived climate forcers and air pollutants including organic aerosol, ozone and methane. The role of these molecules in air quality and climate is conceptually clear but an accurate quantitative representation is needed for predictive models. The proposed work is a novel application of EMSL capabilities to investigate the role of climate, nutrients and ecosystem stress in determining the production of metabolites from tropical forests and their release into the atmosphere. The project takes advantage of a major research program, called IMBALANCE-P, that will quantify ecosystem functioning and stress with ecological, micrometeorological and biogeochemical observations and will provide infrastructure required for collecting samples including above canopy eddy flux towers at two tropical forest sites in French Guiana. The specific needs for EMSL analytical capabilities include high throughput, sensitive metabolomic analytical techniques and unique EMSL high resolution mass spectrometry capabilities for unambiguous identification of chemical formulas. The scientific objectives of this proposed work are aligned with the research priorities of the EMSL AAS science theme and DOE BER programs in Atmospheric System Research and Terrestrial Ecosystem Science. The expected outcome of this research is an improved predictive capability for climate models.
Project Details
Start Date
2015-10-01
End Date
2016-09-30
Status
Closed
Released Data Link
Team
Principal Investigator
Co-Investigator(s)
Team Members
Related Publications
Rivas-Ubach A., Y. Liu, A.L. Steiner, J. Sardans, M.M. Tfaily, G.R. Kulkarni, and Y. Kim, et al. 2019. "Atmo-ecometabolomics: a novel atmospheric particle chemical characterization methodology for ecological research." Environmental Monitoring and Assessment 191, no. 2:Article No. 78. PNNL-SA-118888. doi:10.1007/s10661-019-7205-x
Rivas-Ubach A., Y. Liu, A.L. Steiner, J. Sardans, M.M. Tfaily, Y. Kim, and E.C. Bourrianne, et al. 2019. "Atmo-ecometabolomics: a novel atmospheric particle chemical characterization methodology for ecological research." Atmospheric Measurement Techniques. PNNL-SA-118888.