Fast-response analyzer for the determination of nitrous oxide flux and management practices to reduce emissions

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The air quality monitoring instrumentation to be purchased as part of this Research Tools and Instruments grant will support several components of Dr. Robert Gordon's and Dr. Claudia Wagner-Riddle's air quality research programs. The research programs that this equipment will support are focused on developing air quality management strategies that will ensure the sustainability of the agricultural industry and protection of the environment. The requested equipment includes a tunable gas analyzer (TGA) for nitrous oxide and selected components for using the TGA as part of an eddy covariance system for surface flux measurements. The TGA measures trace gas concentrations in an air sample using tunable diode laser absorption spectroscopy. It is a rugged, portable instrument designed for use in the field. Dr. Gordon and Wagner-Riddle will use this instrumentation as part of several on-farm and year-round greenhosue gas monitoring studies. Nitrous oxide is a potent greenhouse gas emitted by agro-ecosystems, and there is much potential for reduction of these emissions through mitigation practices tailored to the agricultural sector. The requested instrument is essential for the successful achievement of research goals in Dr. Gordon's and Wagner-Riddle's research programs. This