研究领域

Physical

Ozone in the stratosphere protects the biosphere from potentially damaging short wavelength solar radiation. Tropospheric ozone initiates many of the chemical processes, which are necessary for the removal of many pollutant gases, while direct exposure can damage animals and plants. Many other gases play important roles: bromine and chlorine oxides are known to play important roles in stratospheric ozone loss, while gases such as NO3 are important in the nighttime chemistry in both the stratosphere and troposphere. Other gases, such as the ubiquitous water vapour play important roles in both chemistry and climate. However, not only are the basic distributions of many of these gases poorly known, but also their detailed roles in the atmospheric system have yet to be tested adequately - studies of these are the focus of the group. Widely differing measurement methods are used, together with numerical models for these studies. UV, visible and infra-red spectroscopy, coupled to novel laser and detector technologies, is used to study, amongst other things, atmospheric composition and structure in the upper atmosphere (using the new UK research aircraft and a powerful LIDAR and balloon borne instruments, and the marine planetary boundary layer in Mace Head, Ireland where a novel technique (broad-band cavity ring-down spectroscopy) has been used to explore marine chemistry and oceanic emissions. There are numerous developments of these techniques, e.g. super-continuum light sources to produce compact ultra broadband CRDS systems. At the other end of the instrument size spectrum is the development of lightweight sensors for O3, CO, CO2, NOx, H2O and hydrocarbons which are being used to study the chemistry of volcanic emissions (e.g. Mt. Etna, the composition of the upper atmosphere and for sensor networks for studying real time personal exposure to gases and aerosols in the urban environment for atmospheric science and health.

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The first airborne comparison of N2O5 measurements over the UK using a CIMS and BBCEAS during the RONOCO campaign. M Le Breton, A Bacak, JBA Muller, TJ Bannan, O Kennedy, B Ouyang, P Xiao, SJ-B Bauguitte, DE Shallcross, RL Jones, MJS Daniels, SM Ball, CJ Percival – Analytical Methods (2014) 6, 9731 (DOI: 10.1039/C4AY02273D) Aviation and climate change. O Dessens, MO Köhler, HL Rogers, RL Jones, JA Pyle – Transport Policy (2014) 34, 14 (DOI: 10.1016/j.tranpol.2014.02.014) Aviation and climate change. O Dessens, MO Köhler, HL Rogers, RL Jones, JA Pyle – Transport Policy (2014) 34, 14 (DOI: 10.1016/j.tranpol.2014.02.014) Radical chemistry at night: comparisons between observed and modelled HOx, NO3 and N2O5 during the RONOCO project. D Stone, MJ Evans, H Walker, T Ingham, S Vaughan, B Ouyang, OJ Kennedy, MW McLeod, RL Jones, J Hopkins, S Punjabi, R Lidster, JF Hamilton, JD Lee, AC Lewis, LJ Carpenter, G Forster, DE Oram, CE Reeves, S Bauguitte, W Morgan, H Coe, E Aruffo, C Dari-Salisburgo, F Giammaria, P Di Carlo, DE Heard – Atmospheric Chemistry and Physics (2014) 14, 1299 (DOI: 10.5194/acp-14-1299-2014) The UV and visible spectra of chlorine peroxide: Constraining the atmospheric photolysis rate. IAK Young, RL Jones, FD Pope – Geophysical Research Letters (2014) 41, 1781 (DOI: 10.1002/2013GL058626) NO3 radical production from the reaction between the Criegee intermediate CH2OO and NO2. B Ouyang, MW McLeod, RL Jones, WJ Bloss – Physical chemistry chemical physics : PCCP (2013) 15, 17070 (DOI: 10.1039/c3cp53024h) Abatement of an aircraft exhaust plume using aerodynamic baffles. M Bennett, SM Christie, A Graham, KP Garry, S Velikov, DI Poll, MG Smith, MI Mead, OA Popoola, GB Stewart, RL Jones – Environ Sci Technol (2013) 47, 2346 (DOI: 10.1021/es303586x) Aircraft based four-channel thermal dissociation laser induced fluorescence instrument for simultaneous measurements of NO2, total peroxy nitrate, total alkyl nitrate, and HNO3. P Di Carlo, E Aruffo, M Busilacchio, F Giammaria, C Dari-Salisburgo, F Biancofiore, G Visconti, J Lee, S Moller, CE Reeves, S Bauguitte, G Forster, RL Jones, B Ouyang – Atmospheric Measurement Techniques (2013) 6, 971(DOI: 10.5194/amt-6-971-2013) Intercomparison of NO3 radical detection instruments in the atmosphere simulation chamber SAPHIR. H-P Dorn, RL Apodaca, SM Ball, T Brauers, SS Brown, JN Crowley, WP Dubé, H Fuchs, R Häseler, U Heitmann, RL Jones, A Kiendler-Scharr, I Labazan, JM Langridge, J Meinen, TF Mentel, U Platt, D Pöhler, F Rohrer, AA Ruth, E Schlosser, G Schuster, AJL Shillings, WR Simpson, J Thieser, R Tillmann, R Varma, DS Venables, A Wahner – Atmospheric Measurement Techniques (2013) 6, 1111 (DOI: 10.5194/amt-6-1111-2013) Light extinction by secondary organic aerosol: An intercomparison of three broadband cavity spectrometers. RM Varma, SM Ball, T Brauers, H-P Dorn, U Heitmann, RL Jones, U Platt, D Pöhler, AA Ruth, AJL Shillings, J Thieser, A Wahner, DS Venables – Atmospheric Measurement Techniques (2013) 6, 3115 (DOI: 10.5194/amt-6-3115-2013) Magma storage, transport and degassing during the 2008-10 summit eruption at Kīlauea Volcano, Hawai'i. M Edmonds, IR Sides, DA Swanson, C Werner, RS Martin, TA Mather, RA Herd, RL Jones, MI Mead, G Sawyer, TJ Roberts, AJ Sutton, T Elias – Geochimica et Cosmochimica Acta (2013) 123, 284 (DOI: 10.1016/j.gca.2013.05.038) Reconciliation of essential process parameters for an enhanced predictability of Arctic stratospheric ozone loss and its climate interactions (RECONCILE): Activities and results. M Von Hobe, S Bekki, S Borrmann, F Cairo, F D'Amato, G Di Donfrancesco, A Dörnbrack, A Ebersoldt, M Ebert, C Emde, I Engel, M Ern, W Frey, S Genco, S Griessbach, J-U Grooß, T Gulde, G Günther, E Hösen, L Hoffmann, V Homonnai, CR Hoyle, ISA Isaksen, DR Jackson, IM Jánosi, RL Jones, K Kandler, C Kalicinsky, A Keil, SM Khaykin, F Khosrawi, R Kivi, J Kuttippurath, JC Laube, F Lefèvre, R Lehmann, S Ludmann, BP Luo, M Marchand, J Meyer, V Mitev, S Molleker, R Müller, H Oelhaf, F Olschewski, Y Orsolini, T Peter, K Pfeilsticker, C Piesch, MC Pitts, LR Poole, FD Pope, F Ravegnani, M Rex, M Riese, T Röckmann, B Rognerud, A Roiger, C Rolf, ML Santee, M Scheibe, C Schiller, H Schlager, M Siciliani De Cumis, N Sitnikov, OA Søvde, R Spang, N Spelten, F Stordal, O Sumiñska-Ebersoldt, A Ulanovski, J Ungermann, S Viciani, CM Volk, M Vom Scheidt, P Von Der Gathen, K Walker, T Wegner, R Weigel, S Weinbruch, G Wetzel, FG Wienhold, I Wohltmann, W Woiwode, IAK Young, V Yushkov, B Zobrist, F Stroh – Atmospheric Chemistry and Physics (2013) 13, 9233 (DOI: 10.5194/acp-13-9233-2013) The use of electrochemical sensors for monitoring urban air quality in low-cost, high-density networks. MI Mead, OAM Popoola, GB Stewart, P Landshoff, M Calleja, M Hayes, JJ Baldovi, MW McLeod, TF Hodgson, J Dicks, A Lewis, J Cohen, R Baron, JR Saffell, RL Jones – Atmospheric Environment (2013) 70, 186 (DOI: 10.1016/j.atmosenv.2012.11.060) Understanding the sensitivity of cavity-enhanced absorption spectroscopy: Pathlength enhancement versus noise suppression. B Ouyang, RL Jones – Applied Physics B: Lasers and Optics (2012) 109, 581 (DOI: 10.1007/s00340-012-5178-3) Atmospheric chemistry and physics in the atmosphere of a developed megacity (London): An overview of the REPARTEE experiment and its conclusions. RM Harrison, M Dall'Osto, DCS Beddows, AJ Thorpe, WJ Bloss, JD Allan, H Coe, JR Dorsey, M Gallagher, C Martin, J Whitehead, PI Williams, RL Jones, JM Langridge, AK Benton, SM Ball, B Langford, CN Hewitt, B Davison, D Martin, KF Petersson, SJ Henshaw, IR White, DE Shallcross, JF Barlow, T Dunbar, F Davies, E Nemitz, GJ Phillips, C Helfter, CF Di Marco, S Smith – Atmospheric Chemistry and Physics (2012) 12, 3065 (DOI: 10.5194/acp-12-3065-2012) Electrochemical sensing of volcanic gases. TJ Roberts, CF Braban, C Oppenheimer, RS Martin, RA Freshwater, DH Dawson, PT Griffiths, RA Cox, JR Saffell, RL Jones – Chemical Geology (2012) 332-333, 74 (DOI: 10.1016/j.chemgeo.2012.08.027) The Joint Airborne IASI Validation Experiment: An evaluation of instrument and algorithms. SM Newman, AM Larar, WL Smith, IV Ptashnik, RL Jones, MI Mead, H Revercomb, DC Tobin, JK Taylor, JP Taylor – Journal of Quantitative Spectroscopy and Radiative Transfer (2012) 113, 1372 (DOI: 10.1016/j.jqsrt.2012.02.030)