Surface-to-mountaintop transport characterised by radon observations at the Jungfraujoch. Griffiths, A. D., Conen, F., Weingartner, E., Zimmermann, L., Chambers, S. D., Williams, A. G., & Steinbacher, M. Atmospheric Chemistry and Physics, 14(23):12763–12779, dec, 2014. ![Surface-to-mountaintop transport characterised by radon observations at the Jungfraujoch [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Atmospheric composition measurements at Jungfraujoch are affected intermittently by boundary-layer air which is brought to the station by processes including thermally driven (anabatic) mountain winds. Using observations of radon-222, and a new objective analysis method, we quantify the land-surface influence at Jungfraujoch hour by hour and detect the presence of anabatic winds on a daily basis. During 2010–2011, anabatic winds occurred on 40% of days, but only from April to September. Anabatic wind days were associated with warmer air temperatures over a large fraction of Europe and with a shift in air-mass properties, even when comparing days with a similar mean radon concentration. Excluding days with anabatic winds, however, did not lead to a better definition of the unperturbed aerosol background than a definition based on radon alone. This implies that a radon threshold reliably excludes local influences from both anabatic and non-anabatic vertical-transport processes.
@article{Griffiths2014,
abstract = {Atmospheric composition measurements at Jungfraujoch are affected intermittently by boundary-layer air which is brought to the station by processes including thermally driven (anabatic) mountain winds. Using observations of radon-222, and a new objective analysis method, we quantify the land-surface influence at Jungfraujoch hour by hour and detect the presence of anabatic winds on a daily basis. During 2010–2011, anabatic winds occurred on 40{\%} of days, but only from April to September. Anabatic wind days were associated with warmer air temperatures over a large fraction of Europe and with a shift in air-mass properties, even when comparing days with a similar mean radon concentration. Excluding days with anabatic winds, however, did not lead to a better definition of the unperturbed aerosol background than a definition based on radon alone. This implies that a radon threshold reliably excludes local influences from both anabatic and non-anabatic vertical-transport processes.},
author = {Griffiths, A. D. and Conen, F. and Weingartner, E. and Zimmermann, L. and Chambers, S. D. and Williams, A. G. and Steinbacher, M.},
doi = {10.5194/acp-14-12763-2014},
issn = {1680-7324},
journal = {Atmospheric Chemistry and Physics},
month = {dec},
number = {23},
pages = {12763--12779},
title = {{Surface-to-mountaintop transport characterised by radon observations at the Jungfraujoch}},
url = {http://www.atmos-chem-phys.net/14/12763/2014/},
volume = {14},
year = {2014}
}
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