FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1961569888> ?p ?o ?g. }

• W1961569888 endingPage "1186" @default.
• W1961569888 startingPage "1161" @default.
• W1961569888 abstract "Abstract. We present a global simulation of tropospheric iodine chemistry within the GEOS-Chem chemical transport model. This includes organic and inorganic iodine sources, standard gas-phase iodine chemistry, and simplified higher iodine oxide (I2OX, X = 2, 3, 4) chemistry, photolysis, deposition, and parametrized heterogeneous reactions. In comparisons with recent iodine oxide (IO) observations, the simulation shows an average bias of ∼ +90 % with available surface observations in the marine boundary layer (outside of polar regions), and of ∼ +73 % within the free troposphere (350 hPa < p < 900 hPa) over the eastern Pacific. Iodine emissions (3.8 Tg yr−1) are overwhelmingly dominated by the inorganic ocean source, with 76 % of this emission from hypoiodous acid (HOI). HOI is also found to be the dominant iodine species in terms of global tropospheric IY burden (contributing up to 70 %). The iodine chemistry leads to a significant global tropospheric O3 burden decrease (9.0 %) compared to standard GEOS-Chem (v9-2). The iodine-driven OX loss rate1 (748 Tg OX yr−1) is due to photolysis of HOI (78 %), photolysis of OIO (21 %), and reaction between IO and BrO (1 %). Increases in global mean OH concentrations (1.8 %) by increased conversion of hydroperoxy radicals exceeds the decrease in OH primary production from the reduced O3 concentration. We perform sensitivity studies on a range of parameters and conclude that the simulation is sensitive to choices in parametrization of heterogeneous uptake, ocean surface iodide, and I2OX (X = 2, 3, 4) photolysis. The new iodine chemistry combines with previously implemented bromine chemistry to yield a total bromine- and iodine-driven tropospheric O3 burden decrease of 14.4 % compared to a simulation without iodine and bromine chemistry in the model, and a small increase in OH (1.8 %). This is a significant impact and so halogen chemistry needs to be considered in both climate and air quality models. 1 Here OX is defined as O3 + NO2 + 2NO3 + PAN + PMN+PPN + HNO4 + 3N2O5 + HNO3 + BrO + HOBr + BrNO2+2BrNO3 + MPN + IO + HOI + INO2 + 2INO3 + 2OIO+2I2O2 + 3I2O3 + 4I2O4, where PAN = peroxyacetyl nitrate, PPN = peroxypropionyl nitrate, MPN = methyl peroxy nitrate, and MPN = peroxymethacryloyl nitrate." @default.
• W1961569888 created "2016-06-24" @default.
• W1961569888 creator A5018521569 @default.
• W1961569888 creator A5030488043 @default.
• W1961569888 creator A5032029312 @default.
• W1961569888 creator A5034553326 @default.
• W1961569888 creator A5043947310 @default.
• W1961569888 creator A5048917657 @default.
• W1961569888 creator A5049763191 @default.
• W1961569888 creator A5057683118 @default.
• W1961569888 creator A5061139847 @default.
• W1961569888 creator A5068018205 @default.
• W1961569888 creator A5070892276 @default.
• W1961569888 creator A5075332773 @default.
• W1961569888 creator A5081062463 @default.
• W1961569888 creator A5084055791 @default.
• W1961569888 date "2016-02-02" @default.
• W1961569888 modified "2023-10-16" @default.
• W1961569888 title "Iodine's impact on tropospheric oxidants: a global model study in GEOS-Chem" @default.
• W1961569888 cites W1484813772 @default.
• W1961569888 cites W1502487295 @default.
• W1961569888 cites W1504665535 @default.
• W1961569888 cites W1745613753 @default.
• W1961569888 cites W1929864434 @default.
• W1961569888 cites W1964624289 @default.
• W1961569888 cites W1967887438 @default.
• W1961569888 cites W1969320233 @default.
• W1961569888 cites W1973115225 @default.
• W1961569888 cites W1974706428 @default.
• W1961569888 cites W1980373419 @default.
• W1961569888 cites W1982137941 @default.
• W1961569888 cites W1991551174 @default.
• W1961569888 cites W1994865747 @default.
• W1961569888 cites W2005739168 @default.
• W1961569888 cites W2007606522 @default.
• W1961569888 cites W2007668465 @default.
• W1961569888 cites W2011002527 @default.
• W1961569888 cites W2014352527 @default.
• W1961569888 cites W2014931100 @default.
• W1961569888 cites W2021157552 @default.
• W1961569888 cites W2028170365 @default.
• W1961569888 cites W2034305856 @default.
• W1961569888 cites W2035616341 @default.
• W1961569888 cites W2048686334 @default.
• W1961569888 cites W2048817057 @default.
• W1961569888 cites W2051930463 @default.
• W1961569888 cites W2060433375 @default.
• W1961569888 cites W2061573828 @default.
• W1961569888 cites W2070885909 @default.
• W1961569888 cites W2072100465 @default.
• W1961569888 cites W2080363285 @default.
• W1961569888 cites W2080656810 @default.
• W1961569888 cites W2081179909 @default.
• W1961569888 cites W2081498958 @default.
• W1961569888 cites W2086290835 @default.
• W1961569888 cites W2097531853 @default.
• W1961569888 cites W2098545882 @default.
• W1961569888 cites W2098561092 @default.
• W1961569888 cites W2100156770 @default.
• W1961569888 cites W2103161751 @default.
• W1961569888 cites W2106591839 @default.
• W1961569888 cites W2109760930 @default.
• W1961569888 cites W2109940975 @default.
• W1961569888 cites W2111212139 @default.
• W1961569888 cites W2115360301 @default.
• W1961569888 cites W2116829363 @default.
• W1961569888 cites W2121774404 @default.
• W1961569888 cites W2128065887 @default.
• W1961569888 cites W2130844238 @default.
• W1961569888 cites W2131840630 @default.
• W1961569888 cites W2132262211 @default.
• W1961569888 cites W2133749706 @default.
• W1961569888 cites W2141633914 @default.
• W1961569888 cites W2142936992 @default.
• W1961569888 cites W2148028617 @default.
• W1961569888 cites W2150789631 @default.
• W1961569888 cites W2151691558 @default.
• W1961569888 cites W2152387463 @default.
• W1961569888 cites W2153446625 @default.
• W1961569888 cites W2160201336 @default.
• W1961569888 cites W2161144418 @default.
• W1961569888 cites W2164567703 @default.
• W1961569888 cites W2168904716 @default.
• W1961569888 cites W2169626520 @default.
• W1961569888 cites W2169639098 @default.
• W1961569888 cites W3033358318 @default.
• W1961569888 cites W3033696992 @default.
• W1961569888 cites W4210858769 @default.
• W1961569888 cites W4231641183 @default.
• W1961569888 cites W4235888992 @default.
• W1961569888 cites W4246689507 @default.
• W1961569888 doi "https://doi.org/10.5194/acp-16-1161-2016" @default.
• W1961569888 hasPublicationYear "2016" @default.
• W1961569888 type Work @default.
• W1961569888 sameAs 1961569888 @default.
• W1961569888 citedByCount "93" @default.
• W1961569888 countsByYear W19615698882016 @default.
• W1961569888 countsByYear W19615698882017 @default.

• next