Radon tracer flux measurements of CO2, N2O and CH4 at Wagga Wagga: OASIS revisited?

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dc.contributor.authorGriffith, DWTen_AU
dc.contributor.authorWilson, SRen_AU
dc.contributor.authorGriffiths, ADen_AU
dc.contributor.authorChambers, SDen_AU
dc.contributor.authorWilliams, AGen_AU
dc.contributor.authorWerczynski, Sen_AU
dc.contributor.authorSisoutham, Oen_AU
dc.contributor.authorHowitt, JAen_AU
dc.contributor.authorReardon, Den_AU
dc.contributor.authorLeuning, Ren_AU
dc.date.accessioned2017-03-08T01:03:23Zen_AU
dc.date.available2017-03-08T01:03:23Zen_AU
dc.date.issued2017-11-12en_AU
dc.date.statistics2017-03-08en_AU
dc.description.abstractVertical profiles and suitably-conditioned surface time histories of the natural radioactive noble gas radon-222 (radon) have long been demonstrated to be useful as quantitative indicators of diurnal- to synoptic-scale mixing processes within the continental lower troposphere. Radon’s well-characterised and slowly-varying source function over (ice-free)terrestrial surfaces, together with its short half-life of 3.8 days, makes it a particularly suitable passive scalar for the evaluation of boundary layer and convective mixing parameterisation schemes in a range of regional and global climate and pollution transport models. We provide a brief overview of ANSTO measurement programs using radon to characterise vertical mixing in the lower atmosphere, together with examples of their applications in modelling and pollution studies. We then present preliminary results from recent field campaigns collecting high resolution vertical radon profiles in the terrestrial boundary layer over rural New South Wales, using a radon sampler mounted on an instrumented motor-glider. The flights were conducted in the lowest 1000m of the atmosphere and, together with simultaneous ground-based and tower measurements, document the dispersion of radon emissions accumulated below the nocturnal stable inversion into the developing daytime convective boundary layer during the important morning transition period.en_AU
dc.identifier.citationWilliams, A. G., Chambers, S. D., Crawford, J., & Griffiths, A. D. (2016). Radon tracer flux measurements of CO2, N2O and CH4 at Wagga Wagga: OASIS revisited? Paper presented at the Atmospheric Composition & Chemistry Observations & Modelling Conference incorporating the Cape Grim Annual Science Meeting 2016, 12-14 November, Stanley, Tasmania, Australia.en_AU
dc.identifier.conferenceenddate18 November 2016en_AU
dc.identifier.conferencenameAtmospheric Composition & Chemistry Observations & Modelling Conference incorporating the Cape Grim Annual Science Meeting 2016en_AU
dc.identifier.conferenceplaceStanley, Tasmaniaen_AU
dc.identifier.conferencestartdate16 November 2016en_AU
dc.identifier.govdoc7997en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/8438en_AU
dc.language.isoenen_AU
dc.publisherAustralian Government Bureau of Meteorologyen_AU
dc.subjectRadiationsen_AU
dc.subjectRadonen_AU
dc.subjectTroposphereen_AU
dc.subjectClimatesen_AU
dc.subjectPollutionen_AU
dc.subjectTerrestrial ecosystemsen_AU
dc.titleRadon tracer flux measurements of CO2, N2O and CH4 at Wagga Wagga: OASIS revisited?en_AU
dc.typeConference Abstracten_AU
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