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Kumar A, Kumar P. Can Ozone Dissociate at the Surface of Water (Water Droplet and Ice) without Light? J Phys Chem A 2023; 127:10016-10025. [PMID: 37965752 DOI: 10.1021/acs.jpca.3c02854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Ozone is a major source of OH radicals in the troposphere. It is well-known that photodissociation of ozone is key for the conversion of ozone into OH radicals. In the present study, using Born-Oppenheimer molecular dynamics simulation, we have shown that on the surface of the droplet and ice, ozone can dissociate without light. In addition, the dissociation time of ozone is found to be much less on the ice surface than the same time on the water droplet. As the dissociation of ozone on the water surface can happen during the day as well as in the night time, we believe this route of forming OH radicals can be even more important than the photodissociation. The present study suggests that the cloud and ice surface can enhance the oxidizing power of the troposphere.
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Affiliation(s)
- Amit Kumar
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, Jaipur, 302017,India
| | - Pradeep Kumar
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, Jaipur, 302017,India
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2
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Guo W, Luo L, Zhang Z, Zheng N, Xiao H, Xiao H. The use of stable oxygen and nitrogen isotopic signatures to reveal variations in the nitrate formation pathways and sources in different seasons and regions in China. ENVIRONMENTAL RESEARCH 2021; 201:111537. [PMID: 34166667 DOI: 10.1016/j.envres.2021.111537] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 05/06/2021] [Accepted: 06/12/2021] [Indexed: 06/13/2023]
Abstract
Nitrate (NO3-) is one of the most important inorganic ions in fine particulate (PM2.5) and drives regional haze formation; however, the NO3- sources and formation mechanisms in different seasons and regions are still debated. Here, PM2.5 samples were collected from Kunming and Nanning in southwestern China from September 1, 2017, to February 28, 2018 (spanning warm and cold months). We measured the daily O and N isotopic compositions of NO3- (δ18O-NO3- and δ15N-NO3-), estimated the δ18O-HNO3 values produced by different oxidation pathways, and quantified the NO3- formation pathways based on the isotope mass-balance equation. Our results showed that the δ18O-NO3- values in Kunming (65.3 ± 7.6‰) and Nanning (67.7 ± 10.1‰) are close to the δ18O-HNO3 values arising from the OH radical pathway (POH, 54.7 ± 1.2‰ to 61.2 ± 1.8‰), suggesting that the δ18O-NO3- values are mainly influenced by POH, which showed a contribution greater than 74%. Stronger surface solar radiation and higher air temperatures in low-latitude regions and warm months increased the amount of HNO3 produced by POH and reduced the amount of HNO3 produced by PN2O5, which produced low δ18O-NO3- values. Increased air pollution emissions decreased the contribution from POH and increased the contribution from N2O5 and NO3 pathways (PN2O5+NO3). The δ15N-NO3- values of PM2.5 in Kunming (7.3 ± 2.8‰) were slightly higher than those in Nanning (2.8 ± 2.7‰). The increased NOx emissions with positive isotopic values led to high δ15N-NO3- values in northern China and during cold months. A higher fNO2 (fNO2 = NO2/(NO + NO2), temperature, and contribution of POH produced lower N isotope fractionation between NOx and δ15N-NO3-, which was found to further decrease the δ15N-NO3- values in southwestern China and during warm months.
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Affiliation(s)
- Wei Guo
- Jiangxi Province Key Laboratory of the Causes and Control of Atmospheric Pollution, East China University of Technology, Nanchang, 330013, China; College of Water Resources and environmental Engineering, East China University of Technology, Nanchang, 330013, China
| | - Li Luo
- Jiangxi Province Key Laboratory of the Causes and Control of Atmospheric Pollution, East China University of Technology, Nanchang, 330013, China; College of Water Resources and environmental Engineering, East China University of Technology, Nanchang, 330013, China
| | - Zhongyi Zhang
- Jiangxi Province Key Laboratory of the Causes and Control of Atmospheric Pollution, East China University of Technology, Nanchang, 330013, China; College of Water Resources and environmental Engineering, East China University of Technology, Nanchang, 330013, China
| | - Nengjian Zheng
- Jiangxi Province Key Laboratory of the Causes and Control of Atmospheric Pollution, East China University of Technology, Nanchang, 330013, China; College of Water Resources and environmental Engineering, East China University of Technology, Nanchang, 330013, China
| | - Hongwei Xiao
- Jiangxi Province Key Laboratory of the Causes and Control of Atmospheric Pollution, East China University of Technology, Nanchang, 330013, China; College of Water Resources and environmental Engineering, East China University of Technology, Nanchang, 330013, China
| | - Huayun Xiao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
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Anderson JG, Wilmouth DM, Smith JB, Sayres DS. UV Dosage Levels in Summer: Increased Risk of Ozone Loss from Convectively Injected Water Vapor. Science 2012; 337:835-9. [DOI: 10.1126/science.1222978] [Citation(s) in RCA: 147] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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4
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Takahashi K, Plath KL, Axson JL, Nelson GC, Skodje RT, Vaida V. Dynamics and spectroscopy of vibrational overtone excited glyoxylic acid and 2,2-dihydroxyacetic acid in the gas-phase. J Chem Phys 2010; 132:094305. [DOI: 10.1063/1.3327839] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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5
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Vaida V. Spectroscopy of Photoreactive Systems: Implications for Atmospheric Chemistry. J Phys Chem A 2008; 113:5-18. [DOI: 10.1021/jp806365r] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Veronica Vaida
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309
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Murphy DM, Cziczo DJ, Hudson PK, Thomson DS. Carbonaceous material in aerosol particles in the lower stratosphere and tropopause region. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007297] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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8
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Rohrer F, Berresheim H. Strong correlation between levels of tropospheric hydroxyl radicals and solar ultraviolet radiation. Nature 2006; 442:184-7. [PMID: 16838018 DOI: 10.1038/nature04924] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2005] [Accepted: 05/19/2006] [Indexed: 11/09/2022]
Abstract
The most important chemical cleaning agent of the atmosphere is the hydroxyl radical, OH. It determines the oxidizing power of the atmosphere, and thereby controls the removal of nearly all gaseous atmospheric pollutants. The atmospheric supply of OH is limited, however, and could be overcome by consumption due to increasing pollution and climate change, with detrimental feedback effects. To date, the high variability of OH concentrations has prevented the use of local observations to monitor possible trends in the concentration of this species. Here we present and analyse long-term measurements of atmospheric OH concentrations, which were taken between 1999 and 2003 at the Meteorological Observatory Hohenpeissenberg in southern Germany. We find that the concentration of OH can be described by a surprisingly linear dependence on solar ultraviolet radiation throughout the measurement period, despite the fact that OH concentrations are influenced by thousands of reactants. A detailed numerical model of atmospheric reactions and measured trace gas concentrations indicates that the observed correlation results from compensations between individual processes affecting OH, but that a full understanding of these interactions may not be possible on the basis of our current knowledge of atmospheric chemistry. As a consequence of the stable relationship between OH concentrations and ultraviolet radiation that we observe, we infer that there is no long-term trend in the level of OH in the Hohenpeissenberg data set.
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Affiliation(s)
- Franz Rohrer
- Forschungszentrum Jülich, Institut ICG-II: Troposphäre, Jülich 52425, Germany.
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9
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Fry JL, Nizkorodov SA, Okumura M, Roehl CM, Francisco JS, Wennberg PO. Cis-cis and trans-perp HOONO: Action spectroscopy and isomerization kinetics. J Chem Phys 2004; 121:1432-48. [PMID: 15260688 DOI: 10.1063/1.1760714] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
The weakly bound HOONO product of the OH+NO2+M reaction is studied using the vibrational predissociation that follows excitation of the first OH overtone (2nu1). We observe formation of both cis-cis and trans-perp conformers of HOONO. The trans-perp HOONO 2nu1 band is observed under thermal (223-238 K) conditions at 6971 cm(-1). We assign the previously published (warmer temperature) HOONO spectrum to the 2nu1 band at 6365 cm(-1) and 2nu1-containing combination bands of the cis-cis conformer of HOONO. The band shape of the trans-perp HOONO spectrum is in excellent agreement with the predicted rotational contour based on previous experimental and theoretical results, but the apparent origin of the cis-cis HOONO spectrum at 6365 cm(-1) is featureless and significantly broader, suggesting more rapid intramolecular vibrational redistribution or predissociation in the latter isomer. The thermally less stable trans-perp HOONO isomerizes rapidly to cis-cis HOONO with an experimentally determined lifetime of 39 ms at 233 K at 13 hPa (in a buffer gas of predominantly Ar). The temperature dependence of the trans-perp HOONO lifetime in the range 223-238 K yields an isomerization barrier of 33+/-12 kJ/mol. New ab initio calculations of the structure and vibrational mode frequencies of the transition state perp-perp HOONO are performed using the coupled cluster singles and doubles with perturbative triples [CCSD(T)] model, using a correlation consistent polarized triple zeta basis set (cc-pVTZ). The energetics of cis-cis, trans-perp, and perp-perp HOONO are also calculated at this level [CCSD(T)/cc-pVTZ] and with a quadruple zeta basis set using the structure determined at the triple zeta basis set [CCSD(T)/cc-pVQZ//CCSD(T)/cc-pVTZ]. These calculations predict that the anti form of perp-perp HOONO has an energy of DeltaE0=42.4 kJ/mol above trans-perp HOONO, corresponding to an activation enthalpy of DeltaH298 (double dagger 0)=41.1 kJ/mol. These results are in good agreement with statistical simulations based on a model developed by Golden, Barker, and Lohr. The simulated isomerization rates match the observed decay rates when modeled with a trans-perp to cis-cis HOONO isomerization barrier of 40.8 kJ/mol and a strong collision model. The quantum yield of cis-cis HOONO dissociation to OH and NO2 is also calculated as a function of photon excitation energy in the range 3500-7500 cm(-1), assuming D0=83 kJ/mol. The quantum yield is predicted to vary from 0.15 to 1 over the observed spectrum at 298 K, leading to band intensities in the action spectrum that are highly temperature dependent; however, the observed relative band strengths in the cis-cis HOONO spectrum do not change substantially with temperature over the range 193-273 K. Semiempirical calculations of the oscillator strengths for 2nu1(cis-cis HOONO) and 2nu1(trans-perp HOONO) are performed using (1) a one-dimensional anharmonic model and (2) a Morse oscillator model for the OH stretch, and ab initio dipole moment functions calculated using Becke, Lee, Yang, and Parr density functional theory (B3LYP), Møller-Plesset pertubation theory truncated at the second and third order (MP2 and MP3), and quadratic configuration interaction theory using single and double excitations (QCISD). The QCISD level calculated ratio of 2nu1 oscillator strengths of trans-perp to cis-cis HOONO is 3.7:1. The observed intensities indicate that the concentration of trans-perp HOONO early in the OH+NO2 reaction is significantly greater than predicted by a Boltzmann distribution, consistent with statistical predictions of high initial yields of trans-perp HOONO from the OH+NO2+M reaction. In the atmosphere, trans-perp HOONO will isomerize nearly instantaneously to cis-cis HOONO. Loss of HOONO via photodissociation in the near-IR limits the lifetime of cis-cis HOONO during daylight to less than 45 h, other loss mechanisms will reduce the lifetime further.
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Affiliation(s)
- Juliane L Fry
- Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125, USA.
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Cohen RC, Murphy JG. Photochemistry of NO2 in Earth's Stratosphere: Constraints from Observations. Chem Rev 2003; 103:4985-98. [PMID: 14664640 DOI: 10.1021/cr020647x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ronald C Cohen
- Department of Chemistry, University of California, Berkeley, CA 94720-1460, USA
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11
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McCarthy MC. Carbon and hydrogen isotopic compositions of stratospheric methane: 2. Two-dimensional model results and implications for kinetic isotope effects. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd003183] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Hanisco TF. In situ observations of HO2and OH obtained on the NASA ER-2 in the high-ClO conditions of the 1999/2000 Arctic polar vortex. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd001024] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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13
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Hanisco TF. Quantifying the rate of heterogeneous processing in the Arctic polar vortex with in situ observations of OH. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd000425] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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14
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Leung FY, Colussi AJ, Hoffmann MR. Sulfur Isotopic Fractionation in the Gas-Phase Oxidation of Sulfur Dioxide Initiated by Hydroxyl Radicals. J Phys Chem A 2001. [DOI: 10.1021/jp011014+] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Perkins KK, Hanisco TF, Cohen RC, Koch LC, Stimpfle RM, Voss PB, Bonne GP, Lanzendorf EJ, Anderson JG, Wennberg PO, Gao RS, Del Negro LA, Salawitch RJ, McElroy CT, Hintsa EJ, Loewenstein M, Bui TP. The NOx−HNO3 System in the Lower Stratosphere: Insights from In Situ Measurements and Implications of the JHNO3−[OH] Relationship. J Phys Chem A 2001. [DOI: 10.1021/jp002519n] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K. K. Perkins
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - T. F. Hanisco
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - R. C. Cohen
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - L. C. Koch
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - R. M. Stimpfle
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - P. B. Voss
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - G. P. Bonne
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - E. J. Lanzendorf
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - J. G. Anderson
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - P. O. Wennberg
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - R. S. Gao
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - L. A. Del Negro
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - R. J. Salawitch
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - C. T. McElroy
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - E. J. Hintsa
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - M. Loewenstein
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
| | - T. P. Bui
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Departments of Chemistry and of Geology and Geophysics, University of California, Berkeley, California 94720; Divisions of Engineering and of Geological and Planetary Science, California Institute of Technology, Pasadena, California 91125; NOAA Aeronomy Laboratory, Boulder, Colorado 80303; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109; Meteorological Service
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16
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Voss PB, Stimpfle RM, Cohen RC, Hanisco TF, Bonne GP, Perkins KK, Lanzendorf EJ, Anderson JG, Salawitch RJ, Webster CR, Scott DC, May RD, Wennberg PO, Newman PA, Lait LR, Elkins JW, Bui TP. Inorganic chlorine partitioning in the summer lower stratosphere: Modeled and measured [ClONO2]/[HCl] during POLARIS. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900494] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Lanzendorf EJ, Hanisco TF, Wennberg PO, Cohen RC, Stimpfle RM, Anderson JG, Gao RS, Margitan JJ, Bui TP. Establishing the Dependence of [HO2]/[OH] on Temperature, Halogen Loading, O3, and NOx Based on in Situ Measurements from the NASA ER-2. J Phys Chem A 2000. [DOI: 10.1021/jp002384l] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- E. J. Lanzendorf
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Division of Geological and Planetary Sciences and Division of Engineering, California Institute of Technology, Pasadena, California 91125; Department of Chemistry, University of CaliforniaBerkeley, Berkeley, California 94720; National Oceanic and Atmospheric Administration Aeronomy Laboratory, Boulder, Colorado 80303; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109
| | - T. F. Hanisco
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Division of Geological and Planetary Sciences and Division of Engineering, California Institute of Technology, Pasadena, California 91125; Department of Chemistry, University of CaliforniaBerkeley, Berkeley, California 94720; National Oceanic and Atmospheric Administration Aeronomy Laboratory, Boulder, Colorado 80303; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109
| | - P. O. Wennberg
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Division of Geological and Planetary Sciences and Division of Engineering, California Institute of Technology, Pasadena, California 91125; Department of Chemistry, University of CaliforniaBerkeley, Berkeley, California 94720; National Oceanic and Atmospheric Administration Aeronomy Laboratory, Boulder, Colorado 80303; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109
| | - R. C. Cohen
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Division of Geological and Planetary Sciences and Division of Engineering, California Institute of Technology, Pasadena, California 91125; Department of Chemistry, University of CaliforniaBerkeley, Berkeley, California 94720; National Oceanic and Atmospheric Administration Aeronomy Laboratory, Boulder, Colorado 80303; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109
| | - R. M. Stimpfle
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Division of Geological and Planetary Sciences and Division of Engineering, California Institute of Technology, Pasadena, California 91125; Department of Chemistry, University of CaliforniaBerkeley, Berkeley, California 94720; National Oceanic and Atmospheric Administration Aeronomy Laboratory, Boulder, Colorado 80303; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109
| | - J. G. Anderson
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Division of Geological and Planetary Sciences and Division of Engineering, California Institute of Technology, Pasadena, California 91125; Department of Chemistry, University of CaliforniaBerkeley, Berkeley, California 94720; National Oceanic and Atmospheric Administration Aeronomy Laboratory, Boulder, Colorado 80303; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109
| | - R. S. Gao
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Division of Geological and Planetary Sciences and Division of Engineering, California Institute of Technology, Pasadena, California 91125; Department of Chemistry, University of CaliforniaBerkeley, Berkeley, California 94720; National Oceanic and Atmospheric Administration Aeronomy Laboratory, Boulder, Colorado 80303; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109
| | - J. J. Margitan
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Division of Geological and Planetary Sciences and Division of Engineering, California Institute of Technology, Pasadena, California 91125; Department of Chemistry, University of CaliforniaBerkeley, Berkeley, California 94720; National Oceanic and Atmospheric Administration Aeronomy Laboratory, Boulder, Colorado 80303; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109
| | - T. P. Bui
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138; Division of Geological and Planetary Sciences and Division of Engineering, California Institute of Technology, Pasadena, California 91125; Department of Chemistry, University of CaliforniaBerkeley, Berkeley, California 94720; National Oceanic and Atmospheric Administration Aeronomy Laboratory, Boulder, Colorado 80303; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109
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