Precise multispecies agricultural gas flux determined using broadband open-path dual-comb spectroscopy
Daniel I. Herman, Chinthaka Weerasekara, Lindsay C. Hutcherson, Fabrizio R. Giorgetta, Kevin C. Cossel, Eleanor M. Waxman, Gabriel M. Colación, Nathan R. Newbury, Stephen M. Welch, B. D. DePaola, Ian Coddington, Eduardo A. Santos, Brian R. Washburn
Abstract
concentration retrievals have sensitivity of 10 parts per billion and yield corresponding NH3 fluxes with a statistical precision of 8% and low systematic uncertainty. Open-path DCS offers accurate multispecies agricultural gas flux quantification without external calibration and is easily extended to larger agricultural systems where point-sampling-based approaches are insufficient, presenting opportunities for field-scale biogeochemical studies and ecological monitoring.
Topics & Concepts
BroadbandSpectroscopyEnvironmental scienceAgriculturePath (computing)Dual (grammatical number)Scale (ratio)Flux (metallurgy)Atmospheric sciencesMaterials scienceEcologyPhysicsOpticsComputer scienceBiologyProgramming languageArtQuantum mechanicsLiteratureMetallurgySpectroscopy and Laser ApplicationsAdvanced Fiber Laser TechnologiesMass Spectrometry Techniques and Applications