Map of radon flux at the Australian land surface.

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Date
2010-06-09
Journal Title
Journal ISSN
Volume Title
Publisher
European Geosciences Union
Abstract
A time-dependent map of radon-222 flux density at the Australian land surface has been constructed with a spatial resolution of 0.05° and temporal resolution of one month. Radon flux density was calculated from a simple model utilising data from national gamma-ray aerial surveys, modelled soil moisture, and maps of soil properties. The model was calibrated against a large data set of accumulation-chamber measurements, thereby constraining it with experimental data. A notable application of the map is in atmospheric mixing and transport studies which use radon as a tracer, where it is a clear improvement on the common assumption of uniform radon flux density. © Author(s) 2010
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Keywords
Radon 222, Flux density, Australia, Aerial surveying, Resolution, Soil chemistry
Citation
Griffiths, A. D., Zahorowski, W., Element, A., & Werczynski, S. (2010). Map of radon flux at the Australian land surface. Atmospheric Chemistry and Physics Discussions, 10(6), 14313–14346. doi:10.5194/acpd-10-14313-2010
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