Matches in SemOpenAlex for { <https://semopenalex.org/work/W2172258787> ?p ?o ?g. }
- W2172258787 endingPage "5366" @default.
- W2172258787 startingPage "5343" @default.
- W2172258787 abstract "Abstract. A new parameter model for α-pinene secondary organic aerosol (SOA) is presented, based on simulations with the detailed model BOREAM (Biogenic hydrocarbon Oxidation and Related Aerosol formation Model). The parameterisation takes into account the influence of temperature, type of oxidant, NOx-regime, photochemical ageing and water uptake, and is suitable for use in global chemistry transport models. BOREAM is validated against recent photooxidation smog chamber experiments, for which it reproduces SOA yields to within a factor of 2 in most cases. In the simple chemical mechanism of the parameter model, oxidation of α-pinene generates peroxy radicals, which, upon reaction with NO or HO2, yield products corresponding to high or low-NOx conditions, respectively. The model parameters – i.e. the temperature-dependent stoichiometric coefficients and partitioning coefficients of 10 semi-volatile products – are obtained from simulations with BOREAM, including a prescribed diurnal cycle for the radiation, oxidant and emission levels, as well as a deposition sink for the particulate and gaseous products. The effects of photooxidative ageing are implicitly included in the parameterisation, since it is based on near-equilibrium SOA concentrations, obtained through simulations of a two-week period. In order to mimic the full BOREAM model results both during SOA build-up and when SOA has reached an equilibrium concentration, the revolatilisation of condensable products due to photochemical processes is taken into account through a fitted pseudo-photolysis reaction of the lumped semi-volatile products. Modelled SOA mass yields are about ten times higher in low-NOx than in high-NOx conditions, with yields of more than 50% in the low-NOx OH-initiated oxidation of α-pinene, considerably more than in previous parameterisations based on smog chamber experiments. Sensitivity calculations indicate that discrepancies between the full model and the parameterisation due to variations in assumed oxidant levels are limited, but that changes in the radiation levels can lead to larger deviations. Photolysis of species in the particulate phase is found to strongly reduce SOA yields in the full model. Simulations of ambient conditions at 17 different sites (using oxidant, radiation and meteorological data from a global chemistry-transport model) show that overall, the parameterisation displays only little bias (2%) compared with the full model, whereas averaged relative deviations amount to about 11%. Water uptake is parameterised using fitted activity coefficients, resulting in a good agreement with the full model." @default.
- W2172258787 created "2016-06-24" @default.
- W2172258787 creator A5015950103 @default.
- W2172258787 creator A5033722572 @default.
- W2172258787 creator A5038583240 @default.
- W2172258787 date "2012-06-19" @default.
- W2172258787 modified "2023-09-29" @default.
- W2172258787 title "Parameterising secondary organic aerosol from α-pinene using a detailed oxidation and aerosol formation model" @default.
- W2172258787 cites W1553389031 @default.
- W2172258787 cites W1594448196 @default.
- W2172258787 cites W1960225184 @default.
- W2172258787 cites W1963601472 @default.
- W2172258787 cites W1964781697 @default.
- W2172258787 cites W1966521768 @default.
- W2172258787 cites W1973992550 @default.
- W2172258787 cites W1976883040 @default.
- W2172258787 cites W1978848700 @default.
- W2172258787 cites W1996735490 @default.
- W2172258787 cites W2001324572 @default.
- W2172258787 cites W2002711960 @default.
- W2172258787 cites W2009302446 @default.
- W2172258787 cites W2010670716 @default.
- W2172258787 cites W2035014908 @default.
- W2172258787 cites W2048733401 @default.
- W2172258787 cites W2054473789 @default.
- W2172258787 cites W2055600484 @default.
- W2172258787 cites W2067157510 @default.
- W2172258787 cites W2073128189 @default.
- W2172258787 cites W2077971563 @default.
- W2172258787 cites W2086525090 @default.
- W2172258787 cites W2095777412 @default.
- W2172258787 cites W2101010673 @default.
- W2172258787 cites W2102404491 @default.
- W2172258787 cites W2102708663 @default.
- W2172258787 cites W2103798157 @default.
- W2172258787 cites W2104116783 @default.
- W2172258787 cites W2107234738 @default.
- W2172258787 cites W2109229209 @default.
- W2172258787 cites W2110356767 @default.
- W2172258787 cites W2111669951 @default.
- W2172258787 cites W2112805691 @default.
- W2172258787 cites W2114601739 @default.
- W2172258787 cites W2116507044 @default.
- W2172258787 cites W2121621703 @default.
- W2172258787 cites W2122721562 @default.
- W2172258787 cites W2122966070 @default.
- W2172258787 cites W2123612327 @default.
- W2172258787 cites W2126545968 @default.
- W2172258787 cites W2127945798 @default.
- W2172258787 cites W2130975189 @default.
- W2172258787 cites W2131595100 @default.
- W2172258787 cites W2134662674 @default.
- W2172258787 cites W2139445651 @default.
- W2172258787 cites W2140969781 @default.
- W2172258787 cites W2144923407 @default.
- W2172258787 cites W2147520445 @default.
- W2172258787 cites W2150956567 @default.
- W2172258787 cites W2152662303 @default.
- W2172258787 cites W2160885731 @default.
- W2172258787 cites W2166604768 @default.
- W2172258787 cites W2167612874 @default.
- W2172258787 cites W2170223718 @default.
- W2172258787 cites W2170758644 @default.
- W2172258787 cites W2170783614 @default.
- W2172258787 cites W2334088731 @default.
- W2172258787 cites W4231823965 @default.
- W2172258787 cites W4254689893 @default.
- W2172258787 doi "https://doi.org/10.5194/acp-12-5343-2012" @default.
- W2172258787 hasPublicationYear "2012" @default.
- W2172258787 type Work @default.
- W2172258787 sameAs 2172258787 @default.
- W2172258787 citedByCount "10" @default.
- W2172258787 countsByYear W21722587872013 @default.
- W2172258787 countsByYear W21722587872014 @default.
- W2172258787 countsByYear W21722587872018 @default.
- W2172258787 countsByYear W21722587872022 @default.
- W2172258787 countsByYear W21722587872023 @default.
- W2172258787 crossrefType "journal-article" @default.
- W2172258787 hasAuthorship W2172258787A5015950103 @default.
- W2172258787 hasAuthorship W2172258787A5033722572 @default.
- W2172258787 hasAuthorship W2172258787A5038583240 @default.
- W2172258787 hasBestOaLocation W21722587871 @default.
- W2172258787 hasConcept C105923489 @default.
- W2172258787 hasConcept C107872376 @default.
- W2172258787 hasConcept C121332964 @default.
- W2172258787 hasConcept C134121241 @default.
- W2172258787 hasConcept C144082473 @default.
- W2172258787 hasConcept C178790620 @default.
- W2172258787 hasConcept C185592680 @default.
- W2172258787 hasConcept C203032635 @default.
- W2172258787 hasConcept C24245907 @default.
- W2172258787 hasConcept C2777207669 @default.
- W2172258787 hasConcept C2779345167 @default.
- W2172258787 hasConcept C2779906576 @default.
- W2172258787 hasConcept C54582936 @default.
- W2172258787 hasConcept C75473681 @default.
- W2172258787 hasConcept C97355855 @default.
- W2172258787 hasConceptScore W2172258787C105923489 @default.