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Browsing by Author "Gallagher, M.W."
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Can aerosols influence deep tropical convection? : Aerosol indirect effects in the Hector island thunderstorm
Connolly, P.J.; Vaughan, G.; May, P.T.; Chemel, C.; Allen, G.; Choularton, T.W.; Gallagher, M.W.; Bower, K.N.; Crosier, J.; Dearden, C. (2013-10)This article addresses the effects of cloud condensation nuclei on the evolution of an intense tropical convective system, known as Hector, using data taken from the ACTIVE and TWP-ICE field campaigns, which were conducted ... -
Characterisation of bioaerosol emissions from a Colorado pine forest : results from the BEACHON-RoMBAS experiment
Crawford, I.P.; Robinson, Niall; Flynn, M.; Foot, V.E.; Gallagher, M.W.; Huffman, J. A.; Stanley, Warren; Kaye, Paul H. (2014-01-21)The behaviour of Primary Biological Aerosols (PBA) at an elevated, un-polluted North American forest site was studied using an Ultra Violet-Light Induced Fluorescence (UV-LIF) measurement technique in conjunction with ... -
Cluster analysis of WIBS single-particle bioaerosol data
Robinson, Niall H.; Allan, J.D.; Huffman, J. A.; Kaye, Paul H.; Foot, V.E.; Gallagher, M.W. (2013-02-13)Hierarchical agglomerative cluster analysis was performed on single-particle multi-spatial data sets comprising optical diameter, asymmetry and three different fluorescence measurements, gathered using two dual Wideband ... -
Detection of Airborne Biological Particles in Indoor Air Using a Real-Time Advanced Morphological Parameter UV-LIF Spectrometer and Gradient Boosting Ensemble Decision Tree Classifiers
Crawford, Ian; Topping, David; Gallagher, M.W.; Forde, Elizabeth; Lloyd , J R; Foot, Virginia; Stopford, Chris; Kaye, Paul H. (2020-09-29)We present results from a study evaluating the utility of supervised machine learning to classify single particle ultraviolet laser-induced fluorescence (UV-LIF) signatures to investigate airborne primary biological aerosol ... -
The fluorescence properties of aerosol larger than 0.8 mu m in urban and tropical rainforest locations
Gabey, A.; Stanley, Warren; Gallagher, M.W.; Kaye, Paul H. (2011)UV-LIF measurements were performed on ambient aerosol in Manchester, UK (urban city centre, winter) and Borneo, Malaysia (remote, tropical) using a Wide Issue Bioaerosol Spectrometer, version 3 (WIBS3). These sites are ... -
Hierarchical Agglomerative Cluster Analysis Applied to WIBS 5-Dimensional Bioaerosol Data Sets
Gallagher, M.W.; Robinson, Niall; Kaye, Paul H.; Foot, V.E. (2012-09-15) -
Low-cost real-time multi-parameter bio-aerosol sensors (invited paper)
Foot, V.E.; Kaye, Paul H.; Stanley, Warren; Barrington, S.J.; Gallagher, M.W.; Gabey, A. (2008-06-16)Sensors that are able to provide reagent-free, continuous monitoring for potential bio-aerosol hazards are required in many environments. In general, increasing the number of optical and spectroscopic properties of individual ... -
Observations of fluorescent and biological aerosol at a high-altitude site in Central France
Gabey, A.; Vaitilingom, M; Freney, E.; Boulon, J.; Sellegri, K.; Gallagher, M.W.; Crawford, I.P.; Robinson, Niall; Stanley, Warren; Kaye, Paul H. (2013-03-27)Total bacteria, fungal spore and yeast counts were compared with UV Light-Induced Fluorescence (UV-LIF) measurements of ambient aerosol at the summit of the Puy de Dˆome (pdD) mountain in Central France (1465 ma.s.l), which ...