Dr Jonathan Crosier
NCAS Weather Directorate RA
BSc Physics (UMIST) 2003, PhD Aerosol Mass Spectrometry (Manchester) 2007
Room Number: 3.13 [Simon Building]
Tel: +44 (0)161 306 2490
Email: j.crosier@manchester.ac.uk
Professional biography
Aerosols have important influences on both the climate and weather. Their influence can be direct (through the interaction of both longwave and shortwave radiation with the particles via scattering and/or absoption) and indirect (via modifications to cloud properties such as reflactivity, lifetime etc). The ability for aerosols to act as effective seeds for ice crystal growth is relatively unknown. The formation of ice within clouds is of great importance both in terms of dynamics (due to the release of additional latent heat) and microphysics (as most precipitation is a results of the formation of large ice crystals).
The main theme of my research has been on the interaction between aerosols and cloud, both in their ability to act as an effective sink for water condensation (Cloud Condensation Nuclei, CCN) and for water deposition (Ice Nuclei). Much of this work has focussed around measurements of cloud microphysics from a variety of in-situ techniques, along with in-situ aerosol measurements.
Current Projects:
VOCALS: Warm clouds in the South East Pacific
APPRAISE: Mixed phase clouds in the UK over the Chilbonton Radar Facilty
COPS: Convection in polluted central Europe
Specific research interests
Aerosol Cloud Interactions
Publications
- Choularton, T. W., Bower, K. N., Weingartner, E., Crawford, I., Coe, H., Gallagher, M. W., Flynn, M., Crosier, J., Connolly, P., Targino, A., Alfarra, M. R., Baltensperger, U., Sjogren, S., Verheggen, B., Cozic, J., Gysel, M. (2008) The influence of small aerosol particles on the properties of water and ice clouds Faraday Discussions 137(), 205-222
- Lewis, A. C., Evans, M. J., Methven, J., Watson, N., Lee, J. D., Hopkins, J. R., Purvis, R. M., Arnold, S. R., McQuaid, J. B., Whalley, L. K., Pilling, M. J., Heard, D. E., Monks, P. S., Parker, A. E., Reeves, C. E., Oram, D. E., Mills, G., Bandy, B. J., Stewart, D., Coe, H., Williams, P., Crosier, J. (2007) Chemical composition observed over the mid-Atlantic and the detection of pollution signatures far from source regions Journal of Geophysical Research-Atmospheres 112(D10),
- Crosier, J., Jimenez, J. L., Allan, J. D., Bower, K. N., Williams, P. I., Alfarra, M. R., Canagaratna, M. R., Jayne, J. T., Worsnop, D. R., Coe, H. (2007) Technical note: Description and use of the new jump mass spectrum mode of operation for the aerodyne quadrupole aerosol mass spectrometers (Q-AMS) Aerosol Science and Technology 41(9), 865-872
- McGillen, M. R., Crosier, J., Percival, C. J., Sanchez-Reyna, G., Shallcross, D. E. (2006) Can topological indices be used to predict gas-phase rate coefficients of importance to tropospheric chemistry? Reactions of alkenes with OH, NO3 and O-3 Chemosphere 65(11), 2035-2044
- Methven, J., Arnold, S. R., Stohl, A., Evans, M. J., Avery, M., Law, K., Lewis, A. C., Monks, P. S., Parrish, D. D., Reeves, C. E., Schlager, H., Atlas, E., Blake, D. R., Coe, H., Crosier, J., Flocke, F. M., Holloway, J. S., Hopkins, J. R., McQuaid, J., Purvis, R., Rappengluck, B., Singh, H. B., Watson, N. M., Whalley, L. K., Williams, P. I. (2006) Establishing Lagrangian connections between observations within air masses crossing the Atlantic during the International Consortium for Atmospheric Research on Transport and Transformation experiment Journal of Geophysical Research-Atmospheres 111(D23),