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Professor Rod Jones

Portrait of rlj1001

Observational and modelling studies of atmospheric structure and photochemistry.

new UK<br />
research aircraft

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.

Mace<br />
Head, Ireland

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.

real time<br />
 personal exposure to gases and aerosols in the urban environment

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.

Selected Publications

Solar driven nitrous acid formation on building material surfaces containing titanium dioxide: A concern for air quality in urban areas?, Atmospheric Environment, doi:10.1016/j.atmosenv.2009.06.046 (2009),

Cavity enhanced absorption spectroscopy of multiple trace gas species using a super- continuum radiation source Optics Express, Vol. 16, Issue 14, pp. 10178-10188, (2008)

An ozone monitoring instrument based on the tungsten trioxide (WO3) semiconductor. Sensors and Actuators, B: Chemical B114(1), 507-512, (2006)

Broad-band cavity ring-down spectroscopy, Chemical Reviews, 103 (12): 5239-5262, Dec (2003)

Publications

Aviation and climate change
O Dessens, MO Köhler, HL Rogers, RL Jones, JA Pyle – Transport Policy (2014)
Aviation and climate change
O Dessens, MO Köhler, HL Rogers, RL Jones, JA Pyle – Transport Policy (2014) 34, 14
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
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
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
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
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
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
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
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
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Research Interest Group

Telephone number

01223 336466

Email address

rlj1001@cam.ac.uk