Surface-to-mountaintop transport characterised by radon observations at the Jungfraujoch
dc.contributor.author | Griffiths, AD | en_AU |
dc.contributor.author | Conen, F | en_AU |
dc.contributor.author | Weingartner, E | en_AU |
dc.contributor.author | Zimmermann, L | en_AU |
dc.contributor.author | Chambers, SD | en_AU |
dc.contributor.author | Williams, AG | en_AU |
dc.contributor.author | Steinbacher, M | en_AU |
dc.date.accessioned | 2016-08-16T05:00:56Z | en_AU |
dc.date.available | 2016-08-16T05:00:56Z | en_AU |
dc.date.issued | 2014-12-05 | en_AU |
dc.date.statistics | 2016-08-16 | en_AU |
dc.description.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(s),2014. | en_AU |
dc.identifier.citation | Griffiths, A. D., Conen, F., Weingartner, E., Zimmermann, L., Chambers, S. D., Williams, A. G., & Steinbacher, M. (2014). Surface-to-mountaintop transport characterised by radon observations at the Jungfraujoch. Atmospheric Chemistry and Physics, 14(23), 12763-12779. doi:10.5194/acp-14-12763-2014 | en_AU |
dc.identifier.govdoc | 6965 | en_AU |
dc.identifier.issn | 1680-7324 | en_AU |
dc.identifier.issue | 23 | en_AU |
dc.identifier.journaltitle | Atmospheric Chemistry and Physics | en_AU |
dc.identifier.pagination | 12763-12779 | en_AU |
dc.identifier.uri | http://dx.doi.org/10.5194/acp-14-12763-2014 | en_AU |
dc.identifier.uri | http://apo.ansto.gov.au/dspace/handle/10238/7322 | en_AU |
dc.identifier.volume | 14 | en_AU |
dc.language.iso | en | en_AU |
dc.publisher | European Geosciences Union | en_AU |
dc.subject | Atmospherics | en_AU |
dc.subject | Radon 222 | en_AU |
dc.subject | Wind | en_AU |
dc.subject | Europe | en_AU |
dc.subject | Aerosols | en_AU |
dc.subject | Measuring methods | en_AU |
dc.title | Surface-to-mountaintop transport characterised by radon observations at the Jungfraujoch | en_AU |
dc.type | Journal Article | en_AU |