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8. WRF-Chem model predictions of the regional impacts of N2O5 heterogeneous processes on night-time chemistry over north-western Europe

Author

Lowe, D, Archer-Nicholls, S, Morgan, W, Allan, J, Utembe, S, Ouyang, B, Aruffo, E, Le Breton, M, Zaveri, RA, Di Carlo, P, Percival, C, Coe, H, Jones, R, McFiggans, G, Jones, Roderic [0000-0002-6761-3966], and Apollo - University of Cambridge Repository

Subjects
13 Climate Action, atmospheric chemistry, nitrogen oxide, Troposphere, ozone, size distributions, reanalysis, 37 Earth Sciences, no3, parameterization, lcsh:QC1-999, lcsh:Chemistry, lcsh:QD1-999, o-x, nitrate, mass-spectrometer, 3701 Atmospheric Sciences, intermediates cri mechanism, secondary organic aerosol, lcsh:Physics
Abstract

Chemical modelling studies have been conducted over north-western Europe in summer conditions, showing that night-time dinitrogen pentoxide (N2O5) heterogeneous reactive uptake is important regionally in modulating particulate nitrate and has a~modest influence on oxidative chemistry. Results from Weather Research and Forecasting model with Chemistry (WRF-Chem) model simulations, run with a detailed volatile organic compound (VOC) gas-phase chemistry scheme and the Model for Simulating Aerosol Interactions and Chemistry (MOSAIC) sectional aerosol scheme, were compared with a series of airborne gas and particulate measurements made over the UK in July 2010. Modelled mixing ratios of key gas-phase species were reasonably accurate (correlations with measurements of 0.7–0.9 for NO2 and O3). However modelled loadings of particulate species were less accurate (correlation with measurements for particulate sulfate and ammonium were between 0.0 and 0.6). Sulfate mass loadings were particularly low (modelled means of 0.5–0.7 μg kg−1air, compared with measurements of 1.0–1.5 μg kg−1air). Two flights from the campaign were used as test cases – one with low relative humidity (RH) (60–70%), the other with high RH (80–90%). N2O5 heterogeneous chemistry was found to not be important in the low-RH test case; but in the high-RH test case it had a strong effect and significantly improved the agreement between modelled and measured NO3 and N2O5. When the model failed to capture atmospheric RH correctly, the modelled NO3 and N2O5 mixing ratios for these flights differed significantly from the measurements. This demonstrates that, for regional modelling which involves heterogeneous processes, it is essential to capture the ambient temperature and water vapour profiles. The night-time NO3 oxidation of VOCs across the whole region was found to be 100–300 times slower than the daytime OH oxidation of these compounds. The difference in contribution was less for alkenes (× 80) and comparable for dimethylsulfide (DMS). However the suppression of NO3 mixing ratios across the domain by N2O5 heterogeneous chemistry has only a very slight, negative, influence on this oxidative capacity. The influence on regional particulate nitrate mass loadings is stronger. Night-time N2O5 heterogeneous chemistry maintains the production of particulate nitrate within polluted regions: when this process is taken into consideration, the daytime peak (for the 95th percentile) of PM10 nitrate mass loadings remains around 5.6 μg kg−1air, but the night-time minimum increases from 3.5 to 4.6 μg kg−1air. The sustaining of higher particulate mass loadings through the night by this process improves model skill at matching measured aerosol nitrate diurnal cycles and will negatively impact on regional air quality, requiring this process to be included in regional models.

Published
2015
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9. Radical chemistry at night: comparisons between observed and modelled HOx, NO3 and N2O5 during the RONOCO project

Author

Stone, D, Evans, M J, Walker, H, Ingham, T, Vaughan, S, Ouyang, B, Kennedy, O J, McLeod, M W, Jones, R L, Hopkins, J, Punjabi, S, Lidster, R, Hamilton, J F, Lee, J D, Lewis, A C, Carpenter, L J, Forster, G, Oram, D E, Reeves, C E, Bauguitte, S, Morgan, W, Coe, H, Aruffo, E, Dari-Salisburgo, C, Giammaria, F, Di Carlo, P, and Heard, D E

Subjects
gas-phase ozonolysis, nitrates, broad-band lidar, mcm v3 part, master chemical mechanism, new-york-city, volatile organic-compounds, lcsh:QC1-999, ozone, pollution, laser-induced fluorescence, tropical rain-forest, lcsh:Chemistry, marine boundary-layer, lcsh:QD1-999, peroxy-radicals, lcsh:Physics
Abstract

The RONOCO (ROle of Nighttime chemistry in controlling the Oxidising Capacity of the AtmOsphere) aircraft campaign during July 2010 and January 2011 made observations of OH, HO2, NO3, N2O5 and a number of supporting measurements at night over the UK, and reflects the first simultaneous airborne measurements of these species. We compare the observed concentrations of these short-lived species with those calculated by a box model constrained by the concentrations of the longer lived species using a detailed chemical scheme. OH concentrations were below the limit of detection, consistent with model predictions. The model systematically underpredicts HO2 by ~200% and overpredicts NO3 and N2O5 by around 80 and 50%, respectively. Cycling between NO3 and N2O5 is fast and thus we define the NO3x (NO3x=NO3+N2O5) family. Production of NO3x is overwhelmingly dominated by the reaction of NO2 with O3, whereas its loss is dominated by aerosol uptake of N2O5, with NO3+VOCs (volatile organic compounds) and NO3+RO2 playing smaller roles. The production of HOx and ROx radicals is mainly due to the reaction of NO3 with VOCs. The loss of these radicals occurs through a combination of HO2+RO2 reactions, heterogeneous processes and production of HNO3 from OH+NO2, with radical propagation primarily achieved through reactions of NO3 with peroxy radicals. Thus NO3 at night plays a similar role to both OH and NO during the day in that it both initiates ROx radical production and acts to propagate the tropospheric oxidation chain. Model sensitivity to the N2O5 aerosol uptake coefficient (γN2O5) is discussed and we find that a value of γN2O5=0.05 improves model simulations for NO3 and N2O5, but that these improvements are at the expense of model success for HO2. Improvements to model simulations for HO2, NO3 and N2O5 can be realised simultaneously on inclusion of additional unsaturated volatile organic compounds, however the nature of these compounds is extremely uncertain.

Published
2014
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12. Aircraft based four-channel thermal dissociation laser induced fluorescence instrument for simultaneous measurements of NO2, total peroxy nitrate, total alkyl nitrate, and HNO3

Author

Di Carlo, P, Aruffo, E, Busilacchio, M, Giammaria, F, Dari-Salisburgo, C, Bianconi, Francesco, Visconti, G, Lee, J, Moller, S, Reeves, Claire, Bauguitte, S, Forster, Grant, Jones, RL, and Ouyang, B

Subjects
lcsh:TA715-787, lcsh:Earthwork. Foundations, lcsh:TA170-171, lcsh:Environmental engineering
Abstract

A four-channel thermal dissociation laser induced fluorescence (TD-LIF) instrument has been developed for simultaneous measurements of nitrogen dioxide (NO2), total peroxy nitrate (∑PNs), total alkyl nitrate (∑ANs) and nitric acid (HNO3). NO2 is measured directly by LIF at 532 nm, whereas organic nitrates and nitric acid are thermally dissociated at distinct temperatures in the inlet to form NO2, which is then measured by LIF. The concentrations of each dissociated species are derived by the differences in measured NO2 relative to the reference colder inlet channel. The TD-LIF was adapted to fly on board the UK Facility for Airborne Atmospheric Measurements (FAAM) BAe 146-301 atmospheric research aircraft in summer 2010, and to date has successfully flown in five field campaigns. This paper reports novel improvements in the TD-LIF instrumentations, including (1) the use of a single wavelength laser, which makes the system compact and relatively cheap; (2) the use of a single beam laser that allows easy alignment and optical stability against the vibrational aircraft environment; and (3) the optical assembly of four detection cells that allow simultaneous and fast (time resolution up to 0.1 s) measurements of NO2, ∑PNs, ∑ANs and HNO3. Laboratory-generated mixtures of PNs, ANs and HNO3 in zero air are converted into NO2 and used to fix the dissociation temperatures of each heated inlet to test the selectivity of the instrument and potential interferences due to recombination reactions of the dissociated products. The effectiveness of the TD-LIF was demonstrated during the RONOCO aircraft campaign (summer 2010). A chemiluminescence system that was measuring NO2 and a broadband cavity enhanced absorption spectrometer (BBCEAS) that was measuring one of the PNs (N2O5) were installed on the same aircraft during the campaign. The in-flight intercomparison of the new TD-LIF with the chemiluminescence system for NO2 measurements and the intercomparison between ∑PNs measured by the TD-LIF and N2O5 by the BBCEAS are used to assess the performance of the TD-LIF.

Published
2013

21. Influence of aerosol chemical composition on N2O5 uptake : airborne regional measurements in northwestern Europe

Author

Morgan, W. T., Ouyang, B., Allan, J. D., Aruffo, E., Di Carlo, P., Kennedy, O. J., Lowe, D., Flynn, M. J., Rosenberg, P. D., Williams, P. I., Jones, R., McFiggans, G. B., Coe, H., Morgan, W. T., Ouyang, B., Allan, J. D., Aruffo, E., Di Carlo, P., Kennedy, O. J., Lowe, D., Flynn, M. J., Rosenberg, P. D., Williams, P. I., Jones, R., McFiggans, G. B., and Coe, H.

Published
2015

22. WRF-Chem model predictions of the regional impacts of N2O5 heterogeneous processes on night-time chemistry over north-western Europe

Author

Lowe, D., Archer-Nicholls, S., Morgan, W., Allan, J., Utembe, S., Ouyang, B., Aruffo, E., Le Breton, M., Zaveri, R. A., Di Carlo, P., Percival, C., Coe, H., Jones, R., McFiggans, G., Lowe, D., Archer-Nicholls, S., Morgan, W., Allan, J., Utembe, S., Ouyang, B., Aruffo, E., Le Breton, M., Zaveri, R. A., Di Carlo, P., Percival, C., Coe, H., Jones, R., and McFiggans, G.

Abstract

Chemical modelling studies have been conducted over north-western Europe in summer conditions, showing that night-time dinitrogen pentoxide (N2O5) heterogeneous reactive uptake is important regionally in modulating particulate nitrate and has a∼modest influence on oxidative chemistry. Results from Weather Research and Forecasting model with Chemistry (WRF-Chem) model simulations, run with a detailed volatile organic compound (VOC) gas-phase chemistry scheme and the Model for Simulating Aerosol Interactions and Chemistry (MOSAIC) sectional aerosol scheme, were compared with a series of airborne gas and particulate measurements made over the UK in July 2010. Modelled mixing ratios of key gas-phase species were reasonably accurate (correlations with measurements of 0.7-0.9 for NO2 and O3). However modelled loadings of particulate species were less accurate (correlation with measurements for particulate sulfate and ammonium were between 0.0 and 0.6). Sulfate mass loadings were particularly low (modelled means of 0.5-0.7 μg kg−1air, compared with measurements of 1.0-1.5 μg kg−1air). Two flights from the campaign were used as test cases - one with low relative humidity (RH) (60-70%), the other with high RH (80-90%). N2O5 heterogeneous chemistry was found to not be important in the low-RH test case; but in the high-RH test case it had a strong effect and significantly improved the agreement between modelled and measured NO3 and N2O5. When the model failed to capture atmospheric RH correctly, the modelled NO3 and N2O5 mixing ratios for these flights differed significantly from the measurements. This demonstrates that, for regional modelling which involves heterogeneous processes, it is essential to capture the ambient temperature and water vapour profiles. The night-time NO3 oxidation of VOCs across the whole region was found to be 100-300 times slower than the daytime OH oxidation of these compounds. The difference in contribution was less for alkenes (×

Published
2015

31. Properties and evolution of biomass burning organic aerosol from Canadian boreal forest fires

Author

Jolleys, M. D., primary, Coe, H., additional, McFiggans, G., additional, Taylor, J. W., additional, O'Shea, S. J., additional, Le Breton, M., additional, Bauguitte, S. J.-B., additional, Moller, S., additional, Di Carlo, P., additional, Aruffo, E., additional, Palmer, P. I., additional, Lee, J. D., additional, Percival, C. J., additional, and Gallagher, M. W., additional

Published
2015
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32. Production of peroxy nitrates in boreal biomass burning plumes over Canada during the BORTAS campaign

Author

Busilacchio, M., primary, Di Carlo, P., additional, Aruffo, E., additional, Biancofiore, F., additional, Salisburgo, C. D., additional, Giammaria, F., additional, Bauguitte, S., additional, Lee, J., additional, Moller, S., additional, Hopkins, J., additional, Punjabi, S., additional, Andrews, S., additional, Lewis, A. C., additional, Parrington, M., additional, Palmer, P. I., additional, and Hyer, E., additional

Published
2015
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33. WRF-Chem model predictions of the regional impacts of N<sub>2</sub>O<sub>5</sub> heterogeneous processes on night-time chemistry over north-western Europe

Author

Lowe, D., primary, Archer-Nicholls, S., additional, Morgan, W., additional, Allan, J., additional, Utembe, S., additional, Ouyang, B., additional, Aruffo, E., additional, Le Breton, M., additional, Zaveri, R. A., additional, Di Carlo, P., additional, Percival, C., additional, Coe, H., additional, Jones, R., additional, and McFiggans, G., additional

Published
2015
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34. Influence of aerosol chemical composition on N<sub>2</sub>O<sub>5</sub> uptake: airborne regional measurements in northwestern Europe

Author

Morgan, W. T., primary, Ouyang, B., additional, Allan, J. D., additional, Aruffo, E., additional, Di Carlo, P., additional, Kennedy, O. J., additional, Lowe, D., additional, Flynn, M. J., additional, Rosenberg, P. D., additional, Williams, P. I., additional, Jones, R., additional, McFiggans, G. B., additional, and Coe, H., additional

Published
2015
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35. Radical chemistry at night:Comparisons between observed and modelled HOx, NO3 and N2O5 during the RONOCO project

Author

Stone, D., Evans, M. J., Walker, H., Ingham, T., Vaughan, S., Ouyang, B., Kennedy, O. J., McLeod, M. W., Jones, R. L., Hopkins, J., Punjabi, S., Lidster, R., Hamilton, J. F., Lee, J. D., Lewis, A. C., Carpenter, L. J., Forster, G., Oram, D. E., Reeves, C. E., Bauguitte, S., Morgan, W., Coe, H., Aruffo, E., Dari-Salisburgo, C., Giammaria, F., Di Carlo, P., Heard, D. E., Stone, D., Evans, M. J., Walker, H., Ingham, T., Vaughan, S., Ouyang, B., Kennedy, O. J., McLeod, M. W., Jones, R. L., Hopkins, J., Punjabi, S., Lidster, R., Hamilton, J. F., Lee, J. D., Lewis, A. C., Carpenter, L. J., Forster, G., Oram, D. E., Reeves, C. E., Bauguitte, S., Morgan, W., Coe, H., Aruffo, E., Dari-Salisburgo, C., Giammaria, F., Di Carlo, P., and Heard, D. E.

Abstract

The RONOCO (ROle of Nighttime chemistry in controlling the Oxidising Capacity of the AtmOsphere) aircraft campaign during July 2010 and January 2011 made observations of OH, HO2, NO3, N2O5 and a number of supporting measurements at night over the UK, and reflects the first simultaneous airborne measurements of these species. We compare the observed concentrations of these short-lived species with those calculated by a box model constrained by the concentrations of the longer lived species using a detailed chemical scheme. OH concentrations were below the limit of detection, consistent with model predictions. The model systematically underpredicts HO2 by ∼200% and overpredicts NO3 and N2O5 by around 80 and 50%, respectively. Cycling between NO3 and N2O5 is fast and thus we define the NO3x (NO3xCombining double low lineNO3+N2O5) family. Production of NO3x is overwhelmingly dominated by the reaction of NO2 with O3, whereas its loss is dominated by aerosol uptake of N2O5, with NO3+VOCs (volatile organic compounds) and NO3+RO2 playing smaller roles. The production of HOx and ROx radicals is mainly due to the reaction of NO3 with VOCs. The loss of these radicals occurs through a combination of HO2+RO2 reactions, heterogeneous processes and production of HNO3 from OH+NO2, with radical propagation primarily achieved through reactions of NO3 with peroxy radicals. Thus NO3 at night plays a similar role to both OH and NO during the day in that it both initiates ROx radical production and acts to propagate the tropospheric oxidation chain. Model sensitivity to the N2O5 aerosol uptake coefficient (γN2O5) is discussed and we find that a value of γN2O5Combining double low line0.05 improves model simulations for NO3 and N2O5, but that these improvements are at the expense of model success for HO2. Improvements to model simulations for HO2, NO3 and N2O5 can be realised simultaneously on inclusion of additional unsaturated volatile organic compounds, however the nature of

Published
2014

36. Radical chemistry at night : Comparisons between observed and modelled HOx, NO3 and N2O5 during the RONOCO project

Author

Stone, D., Evans, M. J., Walker, H., Ingham, T., Vaughan, S., Ouyang, B., Kennedy, O. J., McLeod, M. W., Jones, R. L., Hopkins, J., Punjabi, S., Lidster, R., Hamilton, J. F., Lee, J. D., Lewis, A. C., Carpenter, L. J., Forster, G., Oram, D. E., Reeves, C. E., Bauguitte, S., Morgan, W., Coe, H., Aruffo, E., Dari-Salisburgo, C., Giammaria, F., Di Carlo, P., Heard, D. E., Stone, D., Evans, M. J., Walker, H., Ingham, T., Vaughan, S., Ouyang, B., Kennedy, O. J., McLeod, M. W., Jones, R. L., Hopkins, J., Punjabi, S., Lidster, R., Hamilton, J. F., Lee, J. D., Lewis, A. C., Carpenter, L. J., Forster, G., Oram, D. E., Reeves, C. E., Bauguitte, S., Morgan, W., Coe, H., Aruffo, E., Dari-Salisburgo, C., Giammaria, F., Di Carlo, P., and Heard, D. E.

Abstract

The RONOCO (ROle of Nighttime chemistry in controlling the Oxidising Capacity of the AtmOsphere) aircraft campaign during July 2010 and January 2011 made observations of OH, HO2, NO3, N2O5 and a number of supporting measurements at night over the UK, and reflects the first simultaneous airborne measurements of these species. We compare the observed concentrations of these short-lived species with those calculated by a box model constrained by the concentrations of the longer lived species using a detailed chemical scheme. OH concentrations were below the limit of detection, consistent with model predictions. The model systematically underpredicts HO2 by ∼200% and overpredicts NO3 and N2O5 by around 80 and 50%, respectively. Cycling between NO3 and N2O5 is fast and thus we define the NO3x (NO3xCombining double low lineNO3+N2O5) family. Production of NO3x is overwhelmingly dominated by the reaction of NO2 with O3, whereas its loss is dominated by aerosol uptake of N2O5, with NO3+VOCs (volatile organic compounds) and NO3+RO2 playing smaller roles. The production of HOx and ROx radicals is mainly due to the reaction of NO3 with VOCs. The loss of these radicals occurs through a combination of HO2+RO2 reactions, heterogeneous processes and production of HNO3 from OH+NO2, with radical propagation primarily achieved through reactions of NO3 with peroxy radicals. Thus NO3 at night plays a similar role to both OH and NO during the day in that it both initiates ROx radical production and acts to propagate the tropospheric oxidation chain. Model sensitivity to the N2O5 aerosol uptake coefficient (γN2O5) is discussed and we find that a value of γN2O5Combining double low line0.05 improves model simulations for NO3 and N2O5, but that these improvements are at the expense of model success for HO2. Improvements to model simulations for HO2, NO3 and N2O5 can be realised simultaneously on inclusion of additional unsaturated volatile organic compounds, however the nature of

Published
2014

39. Supplementary material to "WRF-chem model predictions of the regional impacts of N2O5 heterogeneous processes on nighttime chemistry over north-western Europe"

Author

Lowe, D., primary, Archer-Nicholls, S., additional, Morgan, W., additional, Allan, J., additional, Utembe, S., additional, Ouyang, B., additional, Aruffo, E., additional, Le Breton, M., additional, Zaveri, R. A., additional, Di Carlo, P., additional, Percival, C., additional, Coe, H., additional, Jones, R., additional, and McFiggans, G., additional

Published
2014
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40. WRF-chem model predictions of the regional impacts of N2O5 heterogeneous processes on nighttime chemistry over north-western Europe

Author

Lowe, D., primary, Archer-Nicholls, S., additional, Morgan, W., additional, Allan, J., additional, Utembe, S., additional, Ouyang, B., additional, Aruffo, E., additional, Le Breton, M., additional, Zaveri, R. A., additional, Di Carlo, P., additional, Percival, C., additional, Coe, H., additional, Jones, R., additional, and McFiggans, G., additional

Published
2014
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41. Influence of aerosol chemical composition on N2O5 uptake: airborne regional measurements in North-Western Europe

Author

Morgan, W. T., primary, Ouyang, B., additional, Allan, J. D., additional, Aruffo, E., additional, Di Carlo, P., additional, Kennedy, O. J., additional, Lowe, D., additional, Flynn, M. J., additional, Rosenberg, P. D., additional, Williams, P. I., additional, Jones, R., additional, McFiggans, G. B., additional, and Coe, H., additional

Published
2014
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42. Supplementary material to "Influence of aerosol chemical composition on N2O5 uptake: airborne regional measurements in North-Western Europe"

Author

Morgan, W. T., primary, Ouyang, B., additional, Allan, J. D., additional, Aruffo, E., additional, Di Carlo, P., additional, Kennedy, O. J., additional, Lowe, D., additional, Flynn, M. J., additional, Rosenberg, P. D., additional, Williams, P. I., additional, Jones, R., additional, McFiggans, G. B., additional, and Coe, H., additional

Published
2014
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43. Aircraft based four-channel thermal dissociation laser induced fluorescence instrument for simultaneous measurements of NO2, total peroxy nitrate, total alkyl nitrate, and HNO3

Author

Di Carlo, P., Aruffo, E., Busilacchio, M., Giammaria, F., Dari-Salisburgo, C., Biancofiore, F., Visconti, G., Lee, J., Moller, S., Reeves, C. E., Bauguitte, S., Forster, G., Jones, R. L., Ouyang, B., Di Carlo, P., Aruffo, E., Busilacchio, M., Giammaria, F., Dari-Salisburgo, C., Biancofiore, F., Visconti, G., Lee, J., Moller, S., Reeves, C. E., Bauguitte, S., Forster, G., Jones, R. L., and Ouyang, B.

Published
2013

44. Observations of total peroxy nitrates and total alkyl nitrates during the OP3 campaign: isoprene nitrate chemistry above a south-east Asian tropical rain forest

Author

Aruffo, E., Di Carlo, P., Dari-Salisburgo, C., Biancofiore, F., Giammaria, F., Lee, J., Moller, S., Evans, M. J., Hopkins, J. R., Jones, C., Mackenzie, Rob, Hewitt, C. N., Aruffo, E., Di Carlo, P., Dari-Salisburgo, C., Biancofiore, F., Giammaria, F., Lee, J., Moller, S., Evans, M. J., Hopkins, J. R., Jones, C., Mackenzie, Rob, and Hewitt, C. N.

Published
2012

45. Ozone photochemistry in boreal biomass burning plumes

Author

Parrington, M., primary, Palmer, P. I., additional, Lewis, A. C., additional, Lee, J. D., additional, Rickard, A. R., additional, Di Carlo, P., additional, Taylor, J. W., additional, Hopkins, J. R., additional, Punjabi, S., additional, Oram, D. E., additional, Forster, G., additional, Aruffo, E., additional, Moller, S. J., additional, Bauguitte, S. J.-B., additional, Allan, J. D., additional, Coe, H., additional, and Leigh, R. J., additional

Published
2013
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46. Quantifying the impact of BOReal forest fires on Tropospheric oxidants over the Atlantic using Aircraft and Satellites (BORTAS) experiment: design, execution and science overview

Author

Palmer, P. I., primary, Parrington, M., additional, Lee, J. D., additional, Lewis, A. C., additional, Rickard, A. R., additional, Bernath, P. F., additional, Duck, T. J., additional, Waugh, D. L., additional, Tarasick, D. W., additional, Andrews, S., additional, Aruffo, E., additional, Bailey, L. J., additional, Barrett, E., additional, Bauguitte, S. J.-B., additional, Curry, K. R., additional, Di Carlo, P., additional, Chisholm, L., additional, Dan, L., additional, Forster, G., additional, Franklin, J. E., additional, Gibson, M. D., additional, Griffin, D., additional, Helmig, D., additional, Hopkins, J. R., additional, Hopper, J. T., additional, Jenkin, M. E., additional, Kindred, D., additional, Kliever, J., additional, Le Breton, M., additional, Matthiesen, S., additional, Maurice, M., additional, Moller, S., additional, Moore, D. P., additional, Oram, D. E., additional, O'Shea, S. J., additional, Owen, R. C., additional, Pagniello, C. M. L. S., additional, Pawson, S., additional, Percival, C. J., additional, Pierce, J. R., additional, Punjabi, S., additional, Purvis, R. M., additional, Remedios, J. J., additional, Rotermund, K. M., additional, Sakamoto, K. M., additional, da Silva, A. M., additional, Strawbridge, K. B., additional, Strong, K., additional, Taylor, J., additional, Trigwell, R., additional, Tereszchuk, K. A., additional, Walker, K. A., additional, Weaver, D., additional, Whaley, C., additional, and Young, J. C., additional

Published
2013
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47. Aircraft based four-channel thermal dissociation laser induced fluorescence instrument for simultaneous measurements of NO2, total peroxy nitrate, total alkyl nitrate, and HNO3

Author

Di Carlo, P., primary, Aruffo, E., additional, Busilacchio, M., additional, Giammaria, F., additional, Dari-Salisburgo, C., additional, Biancofiore, F., additional, Visconti, G., additional, Lee, J., additional, Moller, S., additional, Reeves, C. E., additional, Bauguitte, S., additional, Forster, G., additional, Jones, R. L., additional, and Ouyang, B., additional

Published
2013
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48. Radical chemistry at night: comparisons between observed and modelled HOx, NO3 and N2O5 during the RONOCO project

Author

Stone, D., primary, Evans, M. J., additional, Walker, H. M., additional, Ingham, T., additional, Vaughan, S., additional, Ouyang, B., additional, Kennedy, O. J., additional, McLeod, M. W., additional, Jones, R. L., additional, Hopkins, J., additional, Punjabi, S., additional, Lidster, R., additional, Hamilton, J. F., additional, Lee, J. D., additional, Lewis, A. C., additional, Carpenter, L. J., additional, Forster, G., additional, Oram, D. E., additional, Reeves, C. E., additional, Bauguitte, S., additional, Morgan, W., additional, Coe, H., additional, Aruffo, E., additional, Dari-Salisburgo, C., additional, Giammaria, F., additional, Di Carlo, P., additional, and Heard, D. E., additional

Published
2013
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49. Aircraft based four-channel thermal dissociation laser induced fluorescence instrument for simultaneous measurements of NO<sub>2</sub>, total peroxy nitrate, total alkyl nitrate, and HNO<sub>3</sub>

Author

Di Carlo, P., primary, Aruffo, E., additional, Busilacchio, M., additional, Giammaria, F., additional, Dari-Salisburgo, C., additional, Biancofiore, F., additional, Visconti, G., additional, Lee, J., additional, Moller, S., additional, Reeves, C. E., additional, Bauguitte, S., additional, Forster, G., additional, Jones, R. L., additional, and Ouyang, B., additional

Published
2012
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50. Observations of total peroxy nitrates and total alkyl nitrates during the OP3 campaign: isoprene nitrate chemistry above a south-east Asian tropical rain forest

Author

Aruffo, E., primary, Di Carlo, P., additional, Dari-Salisburgo, C., additional, Biancofiore, F., additional, Giammaria, F., additional, Lee, J., additional, Moller, S., additional, Evans, M. J., additional, Hopkins, J. R., additional, Jones, C., additional, MacKenzie, A. R., additional, and Hewitt, C. N., additional

Published
2012
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