Real Time Detection of Airborne Bioparticles in Antarctica
International audience We demonstrate for the first time, continuous real-time observations of airborne bio-fluorescent aerosols recorded at the British Antarctic Survey's Halley VI Research Station, located on the Brunt ice shelf close to the Weddell Sea coast (Lat. 75°34'59"S, Long....
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Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2017
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-01527797 |
id |
ftccsdartic:oai:HAL:insu-01527797v1 |
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openpolar |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
spellingShingle |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] Crawford, Ian A. Gallagher, Martin W. Bower, Keith N. Choularton, Thomas W. Flynn, Michael J. Ruske, Simon Listowski, Constantino Brough, Neil, Lachlan-Cope, Thomas Flemming, Zoë L. Foot, Virginia E. Stanley, Warren R. Real Time Detection of Airborne Bioparticles in Antarctica |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience We demonstrate for the first time, continuous real-time observations of airborne bio-fluorescent aerosols recorded at the British Antarctic Survey's Halley VI Research Station, located on the Brunt ice shelf close to the Weddell Sea coast (Lat. 75°34'59"S, Long. 26°10'0"W) during Antarctic Summer, 2015. As part of the NERC MAC (Microphysics of Antarctic Clouds) aircraft aerosol cloud interaction project, observations with a real-time Ultraviolet Light Induced Fluorescence (UV-LIF) spectrometer were conducted to quantify airborne biological containing particle concentrations along with dust particles as a function of wind speed and direction over a three week period. Significant, intermittent enhancements of both non- and bio-fluorescent particles were observed to varying degrees in very specific wind directions and during strong wind events. Analysis of the particle UV induced emission spectra, particle sizes and shapes recorded during these events suggest the majority of particles were likely a subset of dust with weak fluorescence emission responses. A minor fraction, however, were clearly primary biological particles that were very strongly fluorescent, with a subset identified as likely being pollen based on comparison with laboratory data obtained using the same instrument. A strong correlation of biofluorescent particles with wind speed was observed in some, but not all, periods. Interestingly the fraction of fluorescent particles to total particle concentration also increased significantly with wind speed during these events. The enhancement in concentrations of these particles could be interpreted as due to re-suspension from the local ice surface but more likely due to emissions from distal sources within Antarctica as well as intercontinental transport. Likely distal sources identified by back trajectory analyses and dispersion modelling were the coastal ice margin zones in Halley Bay consisting of bird colonies with likely associated high bacterial activity together with ... |
author2 |
Centre for Atmospheric Science Manchester (CAS) School of Earth and Environmental Sciences Manchester (SEES) University of Manchester Manchester -University of Manchester Manchester British Antarctic Survey (BAS) Natural Environment Research Council (NERC) SPACE - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Department of Chemistry Leicester University of Leicester Defence Science and Technology Laboratory (Dstl) Ministry of Defence (UK) (MOD) Science and Technology Research Institute Hatfield (STRI) University of Hertfordshire Hatfield (UH) |
format |
Article in Journal/Newspaper |
author |
Crawford, Ian A. Gallagher, Martin W. Bower, Keith N. Choularton, Thomas W. Flynn, Michael J. Ruske, Simon Listowski, Constantino Brough, Neil, Lachlan-Cope, Thomas Flemming, Zoë L. Foot, Virginia E. Stanley, Warren R. |
author_facet |
Crawford, Ian A. Gallagher, Martin W. Bower, Keith N. Choularton, Thomas W. Flynn, Michael J. Ruske, Simon Listowski, Constantino Brough, Neil, Lachlan-Cope, Thomas Flemming, Zoë L. Foot, Virginia E. Stanley, Warren R. |
author_sort |
Crawford, Ian A. |
title |
Real Time Detection of Airborne Bioparticles in Antarctica |
title_short |
Real Time Detection of Airborne Bioparticles in Antarctica |
title_full |
Real Time Detection of Airborne Bioparticles in Antarctica |
title_fullStr |
Real Time Detection of Airborne Bioparticles in Antarctica |
title_full_unstemmed |
Real Time Detection of Airborne Bioparticles in Antarctica |
title_sort |
real time detection of airborne bioparticles in antarctica |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal-insu.archives-ouvertes.fr/insu-01527797 |
long_lat |
ENVELOPE(-22.500,-22.500,-74.750,-74.750) |
geographic |
Antarctic Brunt Ice Shelf Weddell Weddell Sea |
geographic_facet |
Antarctic Brunt Ice Shelf Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctica Brunt Ice Shelf Ice Shelf Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Brunt Ice Shelf Ice Shelf Weddell Sea |
op_source |
ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal-insu.archives-ouvertes.fr/insu-01527797 Atmospheric Chemistry and Physics Discussions, European Geosciences Union, 2017, pp.(Under Review) |
op_relation |
insu-01527797 https://hal-insu.archives-ouvertes.fr/insu-01527797 |
_version_ |
1766269018176487424 |
spelling |
ftccsdartic:oai:HAL:insu-01527797v1 2023-05-15T14:00:02+02:00 Real Time Detection of Airborne Bioparticles in Antarctica Crawford, Ian A. Gallagher, Martin W. Bower, Keith N. Choularton, Thomas W. Flynn, Michael J. Ruske, Simon Listowski, Constantino Brough, Neil, Lachlan-Cope, Thomas Flemming, Zoë L. Foot, Virginia E. Stanley, Warren R. Centre for Atmospheric Science Manchester (CAS) School of Earth and Environmental Sciences Manchester (SEES) University of Manchester Manchester -University of Manchester Manchester British Antarctic Survey (BAS) Natural Environment Research Council (NERC) SPACE - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Department of Chemistry Leicester University of Leicester Defence Science and Technology Laboratory (Dstl) Ministry of Defence (UK) (MOD) Science and Technology Research Institute Hatfield (STRI) University of Hertfordshire Hatfield (UH) 2017 https://hal-insu.archives-ouvertes.fr/insu-01527797 en eng HAL CCSD European Geosciences Union insu-01527797 https://hal-insu.archives-ouvertes.fr/insu-01527797 ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal-insu.archives-ouvertes.fr/insu-01527797 Atmospheric Chemistry and Physics Discussions, European Geosciences Union, 2017, pp.(Under Review) [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 2017 ftccsdartic 2020-12-25T10:47:32Z International audience We demonstrate for the first time, continuous real-time observations of airborne bio-fluorescent aerosols recorded at the British Antarctic Survey's Halley VI Research Station, located on the Brunt ice shelf close to the Weddell Sea coast (Lat. 75°34'59"S, Long. 26°10'0"W) during Antarctic Summer, 2015. As part of the NERC MAC (Microphysics of Antarctic Clouds) aircraft aerosol cloud interaction project, observations with a real-time Ultraviolet Light Induced Fluorescence (UV-LIF) spectrometer were conducted to quantify airborne biological containing particle concentrations along with dust particles as a function of wind speed and direction over a three week period. Significant, intermittent enhancements of both non- and bio-fluorescent particles were observed to varying degrees in very specific wind directions and during strong wind events. Analysis of the particle UV induced emission spectra, particle sizes and shapes recorded during these events suggest the majority of particles were likely a subset of dust with weak fluorescence emission responses. A minor fraction, however, were clearly primary biological particles that were very strongly fluorescent, with a subset identified as likely being pollen based on comparison with laboratory data obtained using the same instrument. A strong correlation of biofluorescent particles with wind speed was observed in some, but not all, periods. Interestingly the fraction of fluorescent particles to total particle concentration also increased significantly with wind speed during these events. The enhancement in concentrations of these particles could be interpreted as due to re-suspension from the local ice surface but more likely due to emissions from distal sources within Antarctica as well as intercontinental transport. Likely distal sources identified by back trajectory analyses and dispersion modelling were the coastal ice margin zones in Halley Bay consisting of bird colonies with likely associated high bacterial activity together with ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Brunt Ice Shelf Ice Shelf Weddell Sea Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Brunt Ice Shelf ENVELOPE(-22.500,-22.500,-74.750,-74.750) Weddell Weddell Sea |