Search Results - "Shallcross, D. E."

Impacts of mechanistic changes on HOx formation and recycling in the oxidation of isoprene by Archibald, A T, Cooke, M C, Utembe, S R, Shallcross, D E, der went, R G, Jenkin, M E

“…Recently reported model-measurement discrepancies for the concentrations of the HOx radical species (OH and HO2 ) in locations characterized by high emission…”
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An aircraft performance model implementation for the estimation of global and regional commercial aviation fuel burn and emissions by Wasiuk, D.K., Lowenberg, M.H., Shallcross, D.E.

“…•We develop the Aircraft Performance Model Implementation (APMI) software.•We use APMI to update global aviation fuel burn estimates.•We use APMI to update…”
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Acid-yield measurements of the gas-phase ozonolysis of ethene as a function of humidity using Chemical Ionisation Mass Spectrometry (CIMS) by Leather, K. E, McGillen, M. R, Cooke, M. C, Utembe, S. R, Archibald, A. T, Jenkin, M. E, Derwent, R. G, Shallcross, D. E, Percival, C. J

“…Gas-phase ethene ozonolysis experiments were conducted at room temperature to determine formic acid yields as a function of relative humidity (RH) using the…”
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Impacts of HOx regeneration and recycling in the oxidation of isoprene: Consequences for the composition of past, present and future atmospheres by Archibald, A. T., Levine, J. G., Abraham, N. L., Cooke, M. C., Edwards, P. M., Heard, D. E., Jenkin, M. E., Karunaharan, A., Pike, R. C., Monks, P. S., Shallcross, D. E., Telford, P. J., Whalley, L. K., Pyle, J. A.

“…A global chemistry‐climate model is used to assess the impact on atmospheric composition of the regeneration and recycling of HOx in the photo‐oxidation of…”
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Airborne observations of formic acid using a chemical ionization mass spectrometer by Le Breton, M, McGillen, M. R, Muller, J. B. A, Bacak, A, Shallcross, D. E, Xiao, P, Huey, L. G, Tanner, D, Coe, H, Percival, C. J

“…The first airborne measurements of formic acid mixing ratios over the United Kingdom were measured on the FAAM BAe-146 research aircraft on 16 March 2010 with…”
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Airborne hydrogen cyanide measurements using a chemical ionisation mass spectrometer for the plume identification of biomass burning forest fires by Le Breton, M., Bacak, A., Muller, J. B. A., O'Shea, S. J., Xiao, P., Ashfold, M. N. R., Cooke, M. C., Batt, R., Shallcross, D. E., Oram, D. E., Forster, G., Bauguitte, S. J.-B., Palmer, P. I., Parrington, M., Lewis, A. C., Lee, J. D., Percival, C. J.

“…A chemical ionisation mass spectrometer (CIMS) was developed for measuring hydrogen cyanide (HCN) from biomass burning events in Canada using I− reagent ions…”
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An isoprene mechanism intercomparison by Archibald, A.T., Jenkin, M.E., Shallcross, D.E.

“…The chemical mechanisms describing the photo-oxidation of isoprene in current Chemistry Transport Models (CTMs) have been intercompared in a series of box…”
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A Common Representative Intermediates (CRI) mechanism for VOC degradation. Part 2: Gas phase mechanism reduction by Watson, L.A., Shallcross, D.E., Utembe, S.R., Jenkin, M.E.

“…The Common Representative Intermediates mechanism version 2 (CRI v2) is a reduced mechanism of intermediate complexity, traceable to the Master Chemical…”
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A Common Representative Intermediates (CRI) mechanism for VOC degradation. Part 3: Development of a secondary organic aerosol module by Utembe, S.R., Watson, L.A., Shallcross, D.E., Jenkin, M.E.

“…A Photochemical Trajectory Model (PTM), containing the Master Chemical Mechanism version 3.1 (MCM v3.1) coupled with an optimised representation of gas–aerosol…”
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Determination of the Photolysis Rate Coefficient of Monochlorodimethyl Sulfide (MClDMS) in the Atmosphere and Its Implications for the Enhancement of SO2 Production from the DMS + Cl2 Reaction by Copeland, G, Lee, E. P. F, Williams, R. G, Archibald, A. T, Shallcross, D. E, Dyke, J. M

“…In this work, the photolysis rate coefficient of CH3SCH2Cl (MClDMS) in the lower atmosphere has been determined and has been used in a marine boundary layer…”
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Criegee intermediates in the indoor environment: new insights by Shallcross, D. E., Taatjes, C. A., Percival, C. J.

“…Criegee intermediates are formed in the ozonolysis of alkenes and play an important role in indoor chemistry, notably as a source of OH radicals. Recent…”
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Using a reduced Common Representative Intermediates (CRIv2-R5) mechanism to simulate tropospheric ozone in a 3-D Lagrangian chemistry transport model by Utembe, S.R., Cooke, M.C., Archibald, A.T., Jenkin, M.E., Derwent, R.G., Shallcross, D.E.

“…A reduced chemical scheme (CRIv2-R5) which describes ozone formation from the tropospheric degradation of methane and 22 emitted non-methane hydrocarbons and…”
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High-frequency urban measurements of molecular hydrogen and carbon monoxide in the United Kingdom by Grant, A., Stanley, K. F., Henshaw, S. J., Shallcross, D. E., O'Doherty, S.

“…High-frequency measurements of atmospheric molecular hydrogen (H2) and carbon monoxide (CO) were made at an urban site in the United Kingdom (UK) from…”
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Reassessing the photochemical production of methanol from peroxy radical self and cross reactions using the STOCHEM-CRI global chemistry and transport model by Khan, M.A.H., Cooke, M.C., Utembe, S.R., Xiao, P., Derwent, R.G., Jenkin, M.E., Archibald, A.T., Maxwell, P., Morris, W.C., South, N., Percival, C.J., Shallcross, D.E.

“…Methanol (CH3OH) is an oxygenated volatile organic compound (VOC) and one of the most abundant species present in the troposphere. The mass of CH3OH in the…”
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Simulating secondary organic aerosol in a 3-D Lagrangian chemistry transport model using the reduced Common Representative Intermediates mechanism (CRI v2-R5) by Utembe, S.R., Cooke, M.C., Archibald, A.T., Shallcross, D.E., Derwent, R.G., Jenkin, M.E.

“…A secondary organic aerosol (SOA) code, coupled to the reduced Common Representative Intermediates chemical mechanism (CRI v2-R5), has been used in the global…”
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Global modelling of the atmospheric methyl bromide budget by WARWICK, N. J, PYLE, J. A, SHALLCROSS, D. E

“…A global three-dimensional chemical transport model has been used to identify and evaluate possible candidates for the `missing' surface source required to…”
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Tracer concentration profiles measured in central London as part of the REPARTEE campaign by Martin, D., Petersson, K. F., White, I. R., Henshaw, S. J., Nickless, G., Lovelock, A., Barlow, J. F., Dunbar, T., Wood, C. R., Shallcross, D. E.

“…There have been relatively few tracer experiments carried out that have looked at vertical plume spread in urban areas. In this paper we present results from…”
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Central role of carbonyl compounds in atmospheric chemistry by Lary, D. J., Shallcross, D. E.

“…With the exception of acetone it is not generally recognized how important atmospheric carbonyls and alkyl radicals are in the lower stratosphere and upper…”
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Estimation of Daytime NO3 Radical Levels in the UK Urban Atmosphere Using the Steady State Approximation Method by Shallcross, D. E., Shallcross, B. M. A., Hamer, P. D., Galloway, M., Watson, L. A., Morris, W. C., Khan, M. A. H., Percival, C. J.

“…The steady state approximation has been applied to the UK National Environment Technology Centre (NETCEN) data at three urban sites in the UK (Marylebone Road…”
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A Common Representative Intermediates (CRI) mechanism for VOC degradation. Part 1: Gas phase mechanism development by Jenkin, M.E., Watson, L.A., Utembe, S.R., Shallcross, D.E.

“…A reduced mechanism describing ozone formation from the tropospheric degradation of methane and 115 emitted non-methane hydrocarbons and oxygenated volatile…”
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