Professor Hugh Coe
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Personal Details 1989 Bsc (Hons), Physics (class 1), University of Newcastle upon Tyne 1993 PhD, Physics Department, UMIST "The exchange of nitrogen dioxide and ozone between vegetation and the atmosphere" 1993-1996 PDRA School of Environmental Sciences, University of East Anglia, Land Ocean Interaction Study, Atmospheric sub-project facilitator 1996-1997 PDRA School of Environmental Sciences, University of East Anglia, Nitrate radical measurements using DOAS during ACSOE (NERC community research project) 1997- Lecturer, Physics Department UMIST 1997 Fellow of the Royal Meteorological Society 1997 Secretary of the Royal Meteorological Society NW.
Teaching
GY3362 CLIMATE AND ENERGY
Service on Departmental committees Chair of the Departmental Postgraduate Committee (Since Dec 1999) Departmental Laser Safety Supervisor (since Sep 1998) Member of the Departmental Socials Committee (Since Dec 1999) Member of the Departmental Safety Committee (since Sep 1998)
Research Research Group Paul Williams PDRA (Aerosol Mass Spectrometer) Rami Alfarra PG (Aerosol Mass Spectrometer) James Allan PG (Aerosol Mass Spectrometer) Jason Shepherd PG (modelling of the chemistry and physics of cirrus clouds) James Shillito PG (Zenith sky spectroscopy)
Main research areas Chemistry and physics of atmospheric aerosols. Mass spectroscopic techniques are increasingly being applied to the study of atmospheric aerosol composition, mainly using laser ablation/ionisation. In general these instruments provide a complete mass spectrum of an individual particles but cannot currently deliver quantitative information. A new approach from Aerodyne Research Inc. of Boston, MA, USA uses thermal ablation and electron impact ionisation. This two stage process leads to quantitative measurement of a range of volatile and semi volatile aerosol components as a function of particle size. We are currently testing the instrument in collaboration with Aerodyne and deploying it in a range of environments in the field both to assess its behaviour and to provide the kind of detailed size fractionated composition information at high temporal resolution that is required but that has not previously been possible with impactor or filter techniques. The instrument is at the forefront of atmospheric particulate research and is key to understanding many, as yet, ill-posed problems in this area. The instrument has been field tested recently and performed extremely well. The instrument will take part in at least two further field campaigns this year, one of which is in Korea during the ACE-ASIA experiment. For more information on the Aerosol Mass Spectrometer click here. Night-time Chemistry in the Upper Troposphere/Lower Stratosphere Region. Ozone concentrations are changing appreciably in the upper troposphere/lower stratosphere region and as NOx plays a key role in the formation and loss of ozone it is important to understand the budget of oxidised nitrogen and determine its fate. The region is difficult to explore using information from satellites and can only be accessed for brief periods by a small number of instrumented aircraft. Zenith sky spectroscopy uses sunlight, scattered from the zenith sky as a light source to observe the characteristic absorptions of a variety of trace gases in the atmosphere. The path of photons through the atmosphere varies as a function of the solar zenith angle and so information on the vertical variability of the absorber can be obtained from a time series of zenith sky measurements. Both NO2 and NO3 vertical profiles can be obtained in this way and by making measurements alongside an O3 LIDAR we are able to probe the night-time chemistry of oxidised nitrogen as a function of height. The work is being conducted in collaboration with John Plane (University of East Anglia), Howard Roscoe (British Antarctic Survey) and Geraint Vaughan (University of Aberystwyth) and has been funded by the NERC UTLS thematic programme. Modelling the Chemistry and Physics of Cirrus Clouds. Clouds act as sinks and processing sites for a range of reactive trace gas species. During passage through a cloud gases are removed resulting in a repartitioning of material between the gas and aerosol phase downwind of the cloud. If precipitation occurs during the passage of air through the cloud permanent removal of the species in question will occur. Soluble gases such as nitric acid are important reservoirs in the troposphere and their main sink is to aerosol and cloud surfaces. We are currently extending an ice cloud model to investigate the extent to which cirrus clouds remove soluble gases and identify whether these species are lost to supercooled water before the cloud glaciates or subsequently onto ice surfaces themselves. Precipitation will be included to explore the likely removal rates of species by these types of clouds. The work is being conducted as part of the NERC UTLS programme.
Publications Coe H., P. I. Williams, G. McFiggans, M. W. Gallagher, K. M. Beswick, K. N. Bower and T. W. Choularton Behavior of ultrafine particles in continental and marine air masses at a rural site in the United Kingdom. J. Geophys. Res., 105, 26891-26905, 2000 Allan B. J., G. McFiggans, J. M. C. Plane, H. Coe and G. G. McFadyen The Nitrate Radical in the Remote Marine Boundary Layer. J. Geophys. Res., 24191-24204, 2000. Allan B. J., G. McFiggans, J. M. C. Plane and H. Coe Observations of iodine monoxide in the remote marine boundary layer. J. Geophys. Res., 105, 14363-14369, 2000. McFiggans G., J. M. C. Plane, B. J. Allan, L. J. Carpenter, H. Coe and C. O’Dowd A Modeling Study of Iodine Chemistry in the Marine Boundary Layer. J. Geophys. Res., 105, 14371-14385, 2000. Cardenas L.M., D. Brassington, B.J. Allan, H. Coe, B. Alicke, K.M. Wilson, J.M.C. Plane and S.A. Penkett Intercomparison of formaldehyde measurements in clean and polluted atmospheres J. Atmos. Chem, 37, 53-80, 2000. Bower B.K.N., Choularton T.W., Gallagher M.W., Beswick K.M., Flynn M.J., Allen A.G., Davison B.M., James J.D., Robertson L., Harrison R.M., Hewitt C.N., Cape J.N., McFadyen G.G., Milford C., Sutton M.A., Martinsson B.G., Frank G., Swietlicki E., Zhou J., Berg O.H., Mentes B., Papaspiropoulos G., Hansson H.C., Leck C., Kulmala M., Aalto P., Vakeva M., Berner A., Bizjak M., Fuzzi S., Laj P., Facchini M.C., Orsi G., Ricci L., Nielsen M., Allan B.J., Coe H., McFiggans G., Plane J.M.C., Collett J.L., Moore K.F., Sherman D.E. ACE-2 HILLCLOUD. An overview of the ACE-2 ground-based cloud experiment Tellus Series B, Vol. 52, No.2, pp.750-778, 2000 Williams P.I., M.W.Gallagher, T.W.Choularton, H. Coe, K.N. Bower and G. McFiggans. Aerosol development and interaction in an urban plume. J.Aerosol Tech. Vol.32, No.2, pp.120-126, 2000 Penkett S.A., Plane J.M.C., Comes F.J., Clemitshaw K.C., Coe H., The Weybourne Atmospheric Observatory, J. Atmos. Chem., Vol.33, No.2, pp.107-110, 1999 Allan B.J., Carslaw N., Coe H., Burgess R.A., Plane J.M.C., Observations of the nitrate radical in the marine boundary layer J. Atmos. Chem., Vol.33, No.2, pp.129-154, 1999 Carslaw N., Plane J.M.C., Coe H., and Cuevas E. Observations of the Nitrate Radical in the Free Troposphere at Izana de Tenerife J. Geophys. Res., Vol.102, No.D15, pp.18917-18933 1997. Carslaw N., Carpenter L., Plane J.M.C., Allan B., Burgess R.A., Clemitshaw K.C., Coe H., and Penkett S.A. Simultaneous measurements of nitrate and peroxy radicals in the marine boundary layer J. Geophys. Res.Vol. 102 D1, p. 18917 1997 (97JD00399) Coe H., Gallagher M.W., Choularton T.W., and Dore C. Canopy Scale Measurements of Stomatal and Cuticular O3 Uptake by Sitka Spruce. 1995 Atmos. Environ. Vol. 29 No 12 pp.1413-1423 Coe H. and Gallagher M.W. Measurements of Fluxes of NO2 to a Dutch Heathland. Quart.J.Royal.Meteorol.Soc. 1992. 118, pp. 767-786. Gallagher M.W., Beswick K.M., Choularton T.W., Fowler D., Hargreaves K. & Coe H. Measurements and Modelling of Cloud Water Deposition to Moorland and Forest Canopies. 1992 Environmental Pollution Vol. 75 No. 1 pp 97-106. Coe H., Choularton T.W., Carruthers D.J., Gallagher M.W. and Bower K.N. A model of occult deposition applicable to complex terrain. 1991 Quart. J. Royal Meteorol. Soc. Vol. 117 pp 803-825 Bower K.N., Hill T.A., Coe H., and Choularton T.W. SO2 Oxidation in an entraining cloud model with explicit microphysics Atmos. Environ. A 25 No 10 pp. 2401-2418 1991
JOURNALS NOT REFEREED H. Coe, P. I. Williams, M. W. Gallagher, K. N. Bower, T. W. Choularton, J. T. Jayne and D. Worsnop An aerosol mass spectrometer for quantitative on-line sampling of particle composition. 19th AAAR Conference, St Louis, Missouri, USA. November 6-10, pp 348 2000. G. McFiggans, H. Coe, P. Williams, and T. Choularton, Timescales for mechanisms leading to the activation of primary organic aerosols – a review of recent field evidence and a new laboratory technique for investigation of aerosol surface processing. 19th AAAR Conference, St Louis, Missouri, USA. November 6-10, pp 83. 2000. H. Coe, P. I. Williams, M. W. Gallagher, K. N. Bower, T. W. Choularton, J. T. Jayne and D. Worsnop An aerosol mass spectrometer for quantitative on-line sampling of particle composition. J. Aerosol Sci., Vol. 31, Suppl. 1, pp. S342-343, 2000 K.N. Bower, M.J. Flynn, T.W. Choularton, H. Coe, R. Burgess, W. Birmilli, K Muller, A. Berner, E. Swietliki and B.G. Martinsson A Field Study of the Evolution of an Urban Plume and Its Interaction with Cloud A contribution to Subproject PROCLOUD Eurotrac Symposium, Garmisch, March 27th to 31st 2000 Abstracts. Page PRO-2 M.W. Gallagher, K.M. Beswick, H. Coe and T.W. Choularton Ozone Deposition to Coastal Waters A contribution to Subproject BIATEX-2 Eurotrac Symposium, Garmisch, March 27th to 31st 2000 Abstracts. Page BIA-11 P.I. Williams, E. Nemitz, J.R. Dorsey, H. Coe, M.W. Gallagher, K.N. Bower and D. Fowler Diurnal Evolution of Ultra-Fine, Fine and Accumulation Mode Aerosol Size Distributions in the City of Edinburgh A contribution to Subproject AEROSOL Eurotrac Symposium, Garmisch, March 27th to 31st 2000 Abstracts. Page AER-24 P.I. Williams, H. Coe, G. McFiggans, M.W. Gallagher, K.M. Beswick, K.N. Bower and T.W. Choularton Observations of Ultra Fine Particle Behaviour in Marine and Rural Air Masses at a UK Coastal Site A contribution to Subproject AEROSOL Eurotrac Symposium, Garmisch, March 27th to 31st 2000 Abstracts. Page AER-23 McFiggans G., H. Coe, P.I. Williams, K.N. Bower, M.W. Gallagher, K.M. Beswick, and T.W. Choularton Ultra-fine particle production in rural and marine air masses. J. Aerosol Sci., Vol. 30, Suppl. 1, pp. S121-122, 1999 B.J. Allan, H. Coe and J.M.C Plane, Studies of the NO3 vertical column in the Troposphere, Geophysical Research Abstracts, 1, No. 2, Section OA 26, p. 521, 1999 (Proceedings of the European Geophysical Union, Den Haag). G. McFiggans, B.J. Allan, H. Coe, J.M.C. Plane, L.J. Carpenter, C.D. O'Dowd and W.T. Sturges, Simulations of Tropospheric iodine chemistry explaining observations of the iodine monoxide radical, Geophysical Research Abstracts, 1, No. 2, Section OA 26, p. 520, 1999 (Proceedings of the European Geophysical Union, Den Haag). Williams, P., Gallagher, M.W., Bower, K.N, Choularton, T.W., Coe, H. Monitoring ultra-fine particles and trace gases in urban street canyons Proceedings of the International Aerosol Conference, Edinburgh 14th Sept. 1998 Coe H., Allan B.J., Plane J.M.C., McFiggans G. The behaviour of the nitrate radical in the marine boundary layer: Measurements made on the west coast of Ireland and during the ACE-2 Hillcloud experiment on Tenerife Proceedings of the 9th Symposium of the IAMAS CACGP and 5th IGAC Seattle. August 19th-25th pp 41., 1998 Williams, P., Gallagher, M.W., Coe, H., Bower, K.N, Choularton, T.W., Results of monitoring ultra-fine, fine and accumulation mode aerosol above an urban canyon in the city of Manchester Proceedings of the 9th Symposium of the IAMAS CACGP and 5th IGAC Seattle. August 19th-25th pp 55., 1998 Williams P.I., M.W.Gallagher, T.W.Choularton, K.N.Bower and K.M.Beswick. Aerosol development and interaction in an urban plume. 17th AAAR Conference, Cincinatti, Ohio, USA. June 22, pp 245. 1998. Beswick K.M., Gallagher M.W., Duyzer J.H., Pilegaard K. and Coe H. Pathways for the Exchange of O3 and NO2 to Forest Canopies A contribution to Subproject BIATEX2 Eurotac Symposium, Garmisch, March 23rd to 27th 1998 Abstracts. Page 6-19 Ed. P.M.Borrel., P.Borrel, T.Cvitas and W.Seiler Coe H., Allan B.J., and Plane J.M.C. Nitrate radical measurements in background Atlantic and European influenced air masses: Results from coastal sites in Ireland and Tenerife. A contribution to Subproject TOR2 Eurotac Symposium, Garmisch, March 23rd to 27th 1998 Abstracts. Page 3-33 Ed. P.M.Borrel., P.Borrel, T.Cvitas and W.Seiler Williams P.I., Choularton T.W., Gallagher M.W., Coe H. and Bower K.N. Characteristics of Atmospheric Aerosol within an Urban Plume A contribution to Subproject SATURN Eurotac Symposium, Garmisch, March 23rd to 27th 1998 Abstracts. Page 9-31 Ed. P.M.Borrel., P.Borrel, T.Cvitas and W.Seiler Allan B.J., Coe H., McFiggans G., and Plane J.M.C. Studies of the nitrate radical in the troposphere. Annalaes Geophysicae. Part 2, Hydrology, Oceans & Atmosphere, Supplement 2, 16, Section OA 19, page C723, 1998 G. McFiggans, B.J. Allan, H. Coe, J.M.C. Plane, L.J. Carpenter, C.D. O’Dowd and W.T. Sturges Observations and modelling studies of reactive iodine species in the marine boundary layer Annales Geophysicae Part 2, Hydrology, Oceans & Atmosphere, Supplement 2 16, Section OA 18 p. C723. 1998 B. J. Allan, H. Coe and J. M. C. Plane Differential Optical Absorption Spectroscopy (DOAS) Studies of the Nitrate Radical and Other Important Trace Gas Species in the Troposphere, in The Oxidising Capacity of the Troposphere Proceedings of the Seventh Symposium on Physico-Chemical behaviour of Atmospheric Pollutants, eds. Larsen B., Versino B., and Angeletti G., European Research Report number EUR 17482 EN ISBN 92-828-0158-6 pp. 134-138 1997. The EU produce only year of publication of this book, it was received autumn 97, delete if necessary. Coe H., Jones R., Vandaele A.-C., Simon P., Allan B., Smith N., Plane J.M.C., Etzkorn T., Helmling M., Janssen C., Stutz J., Wagner T., Platt U., Carleer M., Guilmot J.-M., Colin R., Burgess R.A., Clemitshaw K., Penkett S.A., Peak J. and Harrison R. A Comparison of Differential Optical Absorption Spectrometers for Measurements of NO2, O3, SO2 and HONO: A contribution to A contribution to Subproject TOPAS. Proceedings of the Eurotac Symposium, Garmisch, March 1996. Ed. P.M.Borrel., P.Borrel, T.Cvitas and W.Seiler, Pub. Computational Mechanics Publications, Southampton, UK.1996.pp 757-762 Gallagher M.W., Coe H., Walton S., Choularton T.W., Beswick K.M., Dore C., Duyzer J., Westrate H., Pilegaarde K., Jensen N.O., Hummelshoj P. Photochemical Modification of ozone and NOx Deposition to Forests: Results from the Speulderbos (Netherlands) and Rivox (Scotland) Experiments. A contribution to Subproject BIATEX. Proceedings of the Eurotac Symposium, Garmisch, March 1994. Ed. P.M.Borrel., P.Borrel, T.Cvitas and W.Seiler, Pub. SPB Academic Publishing The Hague.1995.pp 645-650 This page last updated 12 January 2001 | |