[PDF] Top 20 Atmospheric isoprene ozonolysis: impacts of stabilized Criegee intermediate reactions with SO<sub>2</sub>, H<sub>2</sub>O and dimethyl sulfide
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Atmospheric isoprene ozonolysis: impacts of stabilized Criegee intermediate reactions with SO<sub>2</sub>, H<sub>2</sub>O and dimethyl sulfide
... from isoprene ozonolysis alone are important for DMS oxidation, it is possible that (the sum of) SCI species produced from other alkene- ozone reactions, or from other (photo)chemical sources ... See full document
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Reactivity of stabilized Criegee intermediates (sCIs) from isoprene and monoterpene ozonolysis toward SO<sub>2</sub> and organic acids
... reacts with the double bond of an alkene, producing an energy-rich pri- mary ozonide, which very rapidly decomposes via a con- certed ring opening to form a carbonyl oxide, the so-called ... See full document
11
Oxidation of SO<sub>2</sub> by stabilized Criegee intermediate (sCI) radicals as a crucial source for atmospheric sulfuric acid concentrations
... 5 and 6 show the measured and modelled (scenar- ios B and D) sulfuric acid concentrations for Hyyti¨al¨a and Hohenpeissenberg, ...concentration with ±30 %. For Hyyti¨al¨a, it is obvious ... See full document
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TransCom N<sub>2</sub>O model inter-comparison – Part 2: Atmospheric inversion estimates of N<sub>2</sub>O emissions
... same atmospheric observations, prior flux estimates and ap- proximate magnitude of the stratospheric ...sources of differences between inversion results are limited to the choice of CTM ... See full document
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Latitude-time variations of atmospheric column-average dry air mole fractions of CO<sub>2</sub>, CH<sub>4</sub> and N<sub>2</sub>O
... Foundation of Research Science and Technology contracts C01X0204 and ...support of the Bialystok and Orl ´eans TCCON sites from the Senate of Bremen and EU projects IMECC, ... See full document
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Characterization of trace gases measured over Alberta oil sands mining operations: 76 speciated C<sub>2</sub>–C<sub>10</sub> volatile organic compounds (VOCs), CO<sub>2</sub>, CH<sub>4</sub>, CO, NO, NO<sub>2</sub>, NO<sub>y</sub>, O<sub>3</sub> and SO<su
... (15%) and asphaltics (6%) (Alboudwarej et al., 2006). Oil sands comprise 30% of total world oil reserves (Alboudwarej et ...2006) and are a mixture of sand, water, clay and crude ... See full document
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Measurements of CH<sub>3</sub>O<sub>2</sub>NO<sub>2</sub> in the upper troposphere
... amount of HO 2 NO 2 ther- mally dissociated is ∼ 11 % with an upper limit based on propagating uncertainties in rate constants of 25 to 30 ...consistent with this upper ...O ... See full document
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Influence of the substrate on the overall sensor impedance of planar H<sub>2</sub> sensors involving TiO<sub>2</sub>–SnO<sub>2</sub> interfaces
... influence of the substrate layer on the overall sensor impedance of single- and multilayer planar sensors ...part of the sensor element. Through the selection of a substrate, the sensor ... See full document
6
Measurements of CH<sub>3</sub>O<sub>2</sub>NO<sub>2</sub> in the upper troposphere
... J., and IUPAC Subcommittee: Evaluated kinetic and photochemi- cal data for atmospheric chemistry: Volume II – gas phase re- actions of organic species, ... See full document
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The CU mobile Solar Occultation Flux instrument: structure functions and emission rates of NH<sub>3</sub>, NO<sub>2</sub> and C<sub>2</sub>H<sub>6</sub>
... site of interest there are 90 ◦ changes in the azimuth angle with each turn and many smaller degree changes in both elevation and azimuth angles due to fine tracking on uneven dirt ...source ... See full document
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Profiles of CH<sub>4</sub>, HDO, H<sub>2</sub>O, and N<sub>2</sub>O with improved lower tropospheric vertical resolution from Aura TES radiances
... HDO/H 2 O ratio are given in per mil and have been corrected for the estimated TES bias discussed in the previous section (Worden et ...1 and where the cloud optical depth is less than ... See full document
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Atmospheric deuterium fractionation: HCHO and HCDO yields in the CH<sub>2</sub>DO+O<sub>2</sub> reaction
... reactivity of a deuterated species was not known a best estimate was made, for example the rate of H abstraction will scale with the num- ber of H atoms, and a C–D bond’s ... See full document
23
Tropospheric photooxidation of CF<sub>3</sub>CH<sub>2</sub>CHO and CF<sub>3</sub>(CH<sub>2</sub>)<sub>2</sub>CHO initiated by Cl atoms and OH radicals
... excess of buffer gas (He). Diluted flu- oroaldehydes and Cl 2 /He mixtures were slowly flowed from 10-L bulbs into the reac- tion cell by means of electronic mass flow ...Concentrations ... See full document
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Observed and simulated global distribution and budget of atmospheric C<sub>2</sub>-C<sub>5</sub> alkanes
... amplitude and phase of the simulated seasonal cycle also agree well with this new observational data ...well with the observations in the NH (where most of the emissions are ...Ireland ... See full document
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Atmospheric test of the J(BrONO<sub>2</sub>)/<i>k</i><sub>BrO+NO<sub>2</sub></sub> ratio: implications for total stratospheric Br<sub>y</sub> and bromine-mediated ozone loss
... where “...” indicates contributions from minor bromine species in the stratosphere (e.g. HOBr, Br, BrCl, and HBr). In our case, taking the revised J(BrONO 2 )/k BrO+NO 2 ra- tio (i.e. 1.69 ± 0.04), ... See full document
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Atmospheric test of the J(BrONO<sub>2</sub>)/<i>k</i><sub>BrO+NO<sub>2</sub></sub> ratio: implications for total stratospheric Br<sub>y</sub> and bromine-mediated ozone loss
... low, and thus very likely the same air masses were probed throughout our ...version of the Jet Propulsion Laboratory (JPL) kinetics and thermo- chemical data for all relevant gas-phase and ... See full document
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Technical note: A stratospheric climatology for O<sub>3</sub>, H<sub>2</sub>O, CH<sub>4</sub>, NO<sub>x</sub>, HCl and HF derived from HALOE measurements
... Global atmospheric models such as Global Circulation Mod- els (GCMs) and Chemistry Transport Models (CTMs) need information about the spatial distribution of the chemical composition for some key ... See full document
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Comparisons of continuous atmospheric CH<sub>4</sub>, CO<sub>2</sub> and N<sub>2</sub>O measurements – results from a travelling instrument campaign at Mace Head
... alternately with ambient air or other samples, is used for on-site ...months and are analysed at Scripps Institute of Oceanography (SIO) before and after use at Mace Head, for details see ... See full document
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A novel source of atmospheric H<sub>2</sub>: abiotic degradation of organic material
... dation and photodegradation of plant litter showed that var- ious C- and N- based trace gases are released during abiotic degradation of litter (Brandt et ...Conrad and Seiler, 1985; ... See full document
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A two-channel thermal dissociation cavity ring-down spectrometer for the detection of ambient NO<sub>2</sub>, RO<sub>2</sub>NO<sub>2</sub> and RONO<sub>2</sub>
... Measurements of the difference signal (TD cavity sam- pling from the 473 (squares) or 723 K inlet (circles) – NO 2 ref- erence cavity) when adding various amounts of NO to PAN sam- ples (1000 or 2500 ... See full document
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