Search Results - "Penkett, S."

Civil Aircraft for the regular investigation of the atmosphere based on an instrumented container: The new CARIBIC system by Brenninkmeijer, C. A. M., Crutzen, P., Boumard, F., Dauer, T., Dix, B., Ebinghaus, R., Filippi, D., Fischer, H., Franke, H., Frieβ, U., Heintzenberg, J., Helleis, F., Hermann, M., Kock, H. H., Koeppel, C., Lelieveld, J., Leuenberger, M., Martinsson, B. G., Miemczyk, S., Moret, H. P., Nguyen, H. N., Nyfeler, P., Oram, D., O'Sullivan, D., Penkett, S., Platt, U., Pupek, M., Ramonet, M., Randa, B., Reichelt, M., Rhee, T. S., Rohwer, J., Rosenfeld, K., Scharffe, D., Schlager, H., Schumann, U., Slemr, F., Sprung, D., Stock, P., Thaler, R., Valentino, F., van Velthoven, P., Waibel, A., Wandel, A., Waschitschek, K., Wiedensohler, A., Xueref-Remy, I., Zahn, A., Zech, U., Ziereis, H.

“…An airfreight container with automated instruments for measurement of atmospheric gases and trace compounds was operated on a monthly basis onboard a Boeing…”
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Short-lived alkyl iodides and bromides at Mace Head, Ireland: Links to biogenic sources and halogen oxide production by Carpenter, L. J., Sturges, W. T., Penkett, S. A., Liss, P. S., Alicke, B., Hebestreit, K., Platt, U.

“…Automated in situ gas chromatograph/mass spectrometer (GC/MS) measurements of a range of predominantly biogenic alkyl halides in air, including CHBr3, CHBr2Cl,…”
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Long-term tropospheric trend of octafluorocyclobutane (c-C 4 F 8 or PFC-318) by Oram, D. E, Mani, F. S, Laube, J. C, Newland, M. J, Reeves, C. E, Sturges, W. T, Penkett, S. A, Brenninkmeijer, C. A. M, Röckmann, T, Fraser, P. J

“…Air samples collected at Cape Grim, Tasmania between 1978 and 2008 and during a series of more recent aircraft sampling programmes have been analysed to…”
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Marine organohalogens in the atmosphere over the Atlantic and Southern Oceans by Carpenter, L. J., Liss, P. S., Penkett, S. A.

“…Reactive halogen species (RHS) such as the halogen oxide radicals IO and BrO influence tropospheric oxidation processes in both polar and temperate regions…”
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Continuing emissions of methyl chloroform from Europe by Krol, M. C, Lelieveld, J, Oram, D. E, Sturrock, G. A, Penkett, S. A, Brenninkmeijer, C. A. M, Gros, V, Williams, J, Scheeren, H. A

“…The consumption of methyl chloroform (1,1,1-trichloroethane), an industrial solvent, has been banned by the 1987 Montreal Protocol because of its…”
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Tandem Reactions in Organic Synthesis:  Novel Strategies for Natural Product Elaboration and the Development of New Synthetic Methodology by Parsons, Philip J, Penkett, Clive S, Shell, Adrian J

“…Parsons et al discuss recent aspects of tandem methodology and its use for the construction of highly functional molecules. Brevity in organic synthesis is…”
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Measurement and modelling of air pollution and atmospheric chemistry in the U.K. West Midlands conurbation: Overview of the PUMA Consortium project by Harrison, R.M., Yin, J., Tilling, R.M., Cai, X., Seakins, P.W., Hopkins, J.R., Lansley, D.L., Lewis, A.C., Hunter, M.C., Heard, D.E., Carpenter, L.J., Creasey, D.J., Lee, J.D., Pilling, M.J., Carslaw, N., Emmerson, K.M., Redington, A., Derwent, R.G., Ryall, D., Mills, G., Penkett, S.A.

“…The PUMA (Pollution of the Urban Midlands Atmosphere) Consortium project involved intensive measurement campaigns in the Summer of 1999 and Winter of…”
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A potent greenhouse gas identified in the atmosphere : SF5CF3 by STURGES, W. T, WALLINGTON, T. J, HURLEY, M. D, SHINE, K. P, SIHRA, K, ENGEL, A, ORAM, D. E, PENKETT, S. A, MULVANEY, R, BRENNINKMEIJER, C. A. M

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OH and HO2 chemistry during NAMBLEX: roles of oxygenates, halogen oxides and heterogeneous uptake by Sommariva, R., Bloss, W. J., Brough, N., Carslaw, N., Flynn, M., Haggerstone, A.-L., Heard, D. E., Hopkins, J. R., Lee, J. D., Lewis, A. C., Mcfiggans, G., Monks, P. S., Penkett, S. A., Pilling, M. J., Plane, J. M. C., Read, K. A., Saiz-Lopez, A., Rickard, A. R., Williams, P. I.

“…Several zero-dimensional box-models with different levels of chemical complexity, based on the Master Chemical Mechanism (MCM), have been used to study the…”
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Evidence for large average concentrations of the nitrate radical (NO 3) in Western Europe from the HANSA hydrocarbon database by Penkett, S.A., Burgess, R.A., Coe, H., Coll, I., Hov, Ø., Lindskog, A., Schmidbauer, N., Solberg, S., Roemer, M., Thijsse, T., Beck, J., Reeves, C.E.

“…The nitrate radical (NO 3) was first measured in the atmosphere in the 1970s and suggestions were made that it could play a major role in oxidising many…”
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Peroxy radical chemistry and the control of ozone photochemistry at Mace Head, Ireland during the summer of 2002 by Fleming, Z. L., Monks, P. S., Rickard, A. R., Heard, D. E., Bloss, W. J., Seakins, P. W., Still, T. J., Sommariva, R., Pilling, M. J., Morgan, R., Green, T. J., Brough, N., Mills, G. P., Penkett, S. A., Lewis, A. C., Lee, J. D., Saiz-Lopez, A., Plane, J. M. C.

“…Peroxy radical (HO2+ΣRO2) measurements, using the PEroxy Radical Chemical Amplification (PERCA) technique at the North Atlantic Marine Boundary Layer…”
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Southern Hemispheric halon trends (1978-1998) and global halon emissions by Fraser, P. J., Oram, D. E., Reeves, C. E., Penkett, S. A., McCulloch, A.

“…Southern hemispheric data (1978‐1998) on four halons are reported. Halon‐derived bromine increased by a factor of 10 from 0.6–0.7 parts per trillion (ppt) in…”
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Production of peroxy radicals at night via reactions of ozone and the nitrate radical in the marine boundary layer by Salisbury, G., Rickard, A. R., Monks, P. S., Allan, B. J., Bauguitte, S., Penkett, S. A., Carslaw, N., Lewis, A. C., Creasey, D. J., Heard, D. E., Jacobs, P. J., Lee, J. D.

“…In this paper, a substantial set of simultaneous measurements of the sum of peroxy radicals, [HO2 + RO2], NO3, hydrocarbons (HCs), and ozone, taken at Mace…”
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Modeling OH, HO2, and RO2 radicals in the marine boundary layer: 1. Model construction and comparison with field measurements by Carslaw, N., Creasey, D. J., Heard, D. E., Lewis, A. C., McQuaid, J. B., Pilling, M. J., Monks, P. S., Bandy, B. J., Penkett, S. A.

“…An observationally constrained box model has been constructed in order to investigate the chemistry of the marine boundary layer at Mace Head, a remote…”
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Methyl bromide, other brominated methanes, and methyl iodide in polar firn air by Sturges, W. T., McIntyre, H. P., Penkett, S. A., Chappellaz, J., Barnola, J.‐M., Mulvaney, R., Atlas, E., Stroud, V.

“…We report measurements of brominated, bromochlorinated, and iodinated methanes in air extracted from deep firn at three polar locations (two Antarctic and one…”
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The importance of atmospheric ozone and hydrogen peroxide in oxidising sulphur dioxide in cloud and rainwater by Penkett, S.A., Jones, B.M.R., Brice, K.A., Eggleton, A.E.J.

“…The process by which sulphur dioxide is oxidised in atmospheric droplets has been studied in laboratory experiments designed to collect a large amount of…”
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Eastern Atlantic Spring Experiment 1997 (EASE97) 2. Comparisons of model concentrations of OH, HO2, and RO2 with measurements by Carslaw, N., Creasey, D. J., Heard, D. E., Jacobs, P. J., Lee, J. D., Lewis, A. C., McQuaid, J. B., Pilling, M. J., Bauguitte, S., Penkett, S. A., Monks, P. S., Salisbury, G.

“…An observationally constrained box model has been used to investigate the chemistry of the marine boundary layer at the Mace Head Atmospheric Research Station,…”
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Seasonal dependence of peroxy radical concentrations at a Northern hemisphere marine boundary layer site during summer and winter: evidence for radical activity in winter by Fleming, Z. L., Monks, P. S., Rickard, A. R., Bandy, B. J., Brough, N., Green, T. J., Reeves, C. E., Penkett, S. A.

“…Peroxy radicals (HO2+Σ RO2) were measured at the Weybourne Atmospheric Observatory (52° N, 1° E), Norfolk using a PEroxy Radical Chemical Amplifier (PERCA)…”
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Distribution of halon-1211 in the upper troposphere and lower stratosphere and the 1994 total bromine budget by Wamsley, P. R., Elkins, J. W., Fahey, D. W., Dutton, G. S., Volk, C. M., Myers, R. C., Montzka, S. A., Butler, J. H., Clarke, A. D., Fraser, P. J.

“…We report here on the details of the first, in situ, real-time measurements of H-1211 (CBrClF2) and sulfur hexafluoride (SF6) mixing ratios in the stratosphere…”
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Growth of fluoroform (CHF3, HFC-23) in the background atmosphere by Oram, D. E., Sturges, W. T., Penkett, S. A., McCulloch, A., Fraser, P. J.

“…There is growing concern over the emission and accumulation of very long‐lived fluorinated trace gases in the atmosphere, due to their large global warming…”
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