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• Journal article
  Lary DJ, Lee AM, Toumi R, Newchurch MJ, Pirre M, Renard JBet al., 1997,

  Carbon aerosols and atmospheric photochemistry

  , JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, Vol: 102, Pages: 3671-3682, ISSN: 2169-897X
  • Author Web Link
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  • Citations: 149
• Conference paper
  Hassard J, McLeod E, Colling D, Mongkolnavin R, Toumi R, Learner D, Liu JH, Breen D, Pookaiyaudom Set al., 1997,

  SUNRISE:: the satellite UV NO-O₂-O₃ robust integrating spectrometer experiment

  , Conference on Sensors, Systems, and Next-Generation Satellites, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, Pages: 470-479, ISSN: 0277-786X
  • Author Web Link
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• Journal article
  Colling D, Hassard J, Howard A, Liu JH, Mongkolnavin R, Toumi R, Violet Jet al., 1997,

  CVD diamond sensors: extreme material for extreme conditions

  , Sensors and Their Applications Viii, Pages: 309-315
  • Cite
• Journal article
  Zhong WY, Toumi R, Haigh JD, 1996,

  Climate forcing by stratospheric ozone depletion calculated from observed temperature trends

  , GEOPHYSICAL RESEARCH LETTERS, Vol: 23, Pages: 3183-3186, ISSN: 0094-8276
  • Author Web Link
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  • Citations: 17
• Journal article
  Bekki S, Pyle JA, Zhong W, Toumi R, Haigh JD, Pyle DMet al., 1996,

  The role of microphysical and chemical processes in prolonging the climate forcing of the Toba eruption

  , GEOPHYSICAL RESEARCH LETTERS, Vol: 23, Pages: 2669-2672, ISSN: 0094-8276
  • Author Web Link
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  • Citations: 79
• Journal article
  Houston PL, Suits AG, Toumi R, 1996,

  Isotopic enrichment of heavy ozone in the stratosphere

  , JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, Vol: 101, Pages: 18829-18834, ISSN: 2169-897X
  • Author Web Link
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  • Citations: 12
• Journal article
  Zhong WY, Haigh JD, Toumi R, Bekki Set al., 1996,

  Infrared heating rates in the stratosphere due to volcanic sulphur dioxide

  , QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, Vol: 122, Pages: 1459-1466, ISSN: 0035-9009
  • Author Web Link
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  • Citations: 6
• Journal article
  Sessler J, Chipperfield MP, Pyle JA, Toumi Ret al., 1996,

  Stratospheric OClO measurements as a poor quantitative indicator of chlorine activation - Reply

  , GEOPHYSICAL RESEARCH LETTERS, Vol: 23, Pages: 1055-1055, ISSN: 0094-8276
  • Cite
  • Citations: 5
• Journal article
  Toumi R, Haigh JD, Law KS, 1996,

  A tropospheric ozone-lightning climate feedback

  , GEOPHYSICAL RESEARCH LETTERS, Vol: 23, Pages: 1037-1040, ISSN: 0094-8276
  • Author Web Link
  • Cite
  • Citations: 39
• Journal article
  Lary DJ, Chipperfield MP, Toumi R, Lenton Tet al., 1996,

  Heterogeneous atmospheric bromine chemistry

  , JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, Vol: 101, Pages: 1489-1504, ISSN: 2169-897X
  • Author Web Link
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  • Citations: 109
• Journal article
  Toumi R, Houston PL, Wodtke AM, 1996,

  Reactive O-2(v>=26) as a source of stratospheric O-3

  , JOURNAL OF CHEMICAL PHYSICS, Vol: 104, Pages: 775-776, ISSN: 0021-9606
  • Author Web Link
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  • Citations: 42
• Journal article
  Sinha A, Toumi R, 1996,

  A comparison of climate forcings due to chlorofluorocarbons and carbon monoxide

  , GEOPHYSICAL RESEARCH LETTERS, Vol: 23, Pages: 65-68, ISSN: 0094-8276
  • Author Web Link
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  • Citations: 7
• Conference paper
  HOUSTON PL, MILLER RL, SUITS AG, TOUMI R, MACK JA, WODTKE AMet al., 1995,

  THE OZONE DEFICIT PROBLEM - A NEW CHANNEL IN OZONE PHOTODISSOCIATION

  , Publisher: AMER CHEMICAL SOC, Pages: 35-PHYS, ISSN: 0065-7727
  • Cite
• Journal article
  TOUMI R, BEKKI S, LAW K, 1995,

  CLIMATE AND CCN - REPLY

  , NATURE, Vol: 375, Pages: 111-111, ISSN: 0028-0836
  • Author Web Link
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  • Citations: 2
• Journal article
  LARY DJ, CHIPPERFIELD MP, TOUMI R, 1995,

  THE POTENTIAL IMPACT OF THE REACTION OH+CLO-]HCL+O-2 ON POLAR OZONE PHOTOCHEMISTRY

  , JOURNAL OF ATMOSPHERIC CHEMISTRY, Vol: 21, Pages: 61-79, ISSN: 0167-7764
  • Author Web Link
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  • Citations: 30
• Journal article
  NESBITT FL, MONKS PS, PAYNE WA, STIEF LJ, TOUMI Ret al., 1995,

  THE REACTION O(3P)+HOBR - TEMPERATURE-DEPENDENCE OF THE RATE-CONSTANT AND IMPORTANCE OF THE REACTION AS AN HOBR STRATOSPHERIC LOSS PROCESS

  , GEOPHYSICAL RESEARCH LETTERS, Vol: 22, Pages: 827-830, ISSN: 0094-8276
  • Author Web Link
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  • Citations: 9
• Journal article
  SESSLER J, CHIPPERFIELD MP, PYLE JA, TOUMI Ret al., 1995,

  STRATOSPHERIC OCLO MEASUREMENTS AS A POOR QUANTITATIVE INDICATOR OF CHLORINE ACTIVATION

  , GEOPHYSICAL RESEARCH LETTERS, Vol: 22, Pages: 687-690, ISSN: 0094-8276
  • Cite
  • Citations: 47
• Journal article
  TOUMI R, BEKKI S, LAW KS, 1994,

  INDIRECT INFLUENCE OF OZONE DEPLETION ON CLIMATE FORCING BY CLOUDS

  , NATURE, Vol: 372, Pages: 348-351, ISSN: 0028-0836
  • Author Web Link
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  • Citations: 34
• Journal article
  Miller RL, Suits AG, Houston PL, Toumi R, Mack JA, Wodtke AMet al., 1994,

  The "ozone deficit" problem: O2(X, v ≥ 26) + Q(3P) from 226-nm ozone photodissociation

  , Science, Vol: 265, Pages: 1831-1838, ISSN: 0036-8075

  Highly vibrationally excited O<inf>2</inf>(X ³Σ<inf>g</inf>^-, v ≥26) has been observed from the photodissociation of ozone (O<inf>3</inf>), and the quantum yield for this reaction has been determined for excitation at 226 nanometers. This observation may help to address the "ozone deficit" problem, or why the previously predicted stratospheric O<inf>3</inf> concentration is less than that observed. Recent kinetic studies have suggested that O<inf>2</inf>(X ³Σ<inf>g</inf>^-, v ≥ 26) can react rapidly with O<inf>2</inf> to form O<inf>3</inf> + O and have led to speculation that, if produced in the photodissociation of O<inf>3</inf>, this species might be involved in resolving the discrepancy. The sequence O<inf>3</inf> + hν → O<inf>2</inf>(X³Σ<inf>g</inf>^-, v ≥ 26) + O; O<inf>2</inf>(X³Σ<inf>g</inf>^-, v ≥ 26) + O<inf>2</inf> → O<inf>3</inf> + O (where hν is a photon) would be an autocatalytic mechanism for production of odd oxygen. A two-dimensional atmospheric model has been used to evaluate the importance of this new mechanism. The new mechanism can completely account for the tropical O<inf>3</inf> deficit at an altitude of 43 kilometers, but it does not completely account for the deficit at higher altitudes. The mechanism also provides for isotopic fractionation and may contribute to an explanation for the anomalously high concentration of heavy O<inf>3</inf> in the stratosphere.

  • Abstract
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  • Citations: 176
• Journal article
  TOUMI R, 1994,

  REACTION OF CLO WITH NO3 - OCLO FORMATION AND NIGHTTIME O3 LOSS

  , GEOPHYSICAL RESEARCH LETTERS, Vol: 21, Pages: 1487-1490, ISSN: 0094-8276
  • Cite
  • Citations: 8
• Journal article
  TOUMI R, 1994,

  BRO AS A SINK FOR DIMETHYLSULFIDE IN THE MARINE ATMOSPHERE

  , GEOPHYSICAL RESEARCH LETTERS, Vol: 21, Pages: 117-120, ISSN: 0094-8276
  • Cite
  • Citations: 72
• Journal article
  TOUMI R, BEKKI S, 1994,

  SENSITIVITY OF STRATOSPHERIC COMPOSITION TO OXYGEN ABSORPTION OF SOLAR-RADIATION (175-210 NM)

  , JOURNAL OF ATMOSPHERIC CHEMISTRY, Vol: 18, Pages: 57-73, ISSN: 0167-7764
  • Author Web Link
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  • Citations: 4
• Journal article
  TOUMI R, BEKKI S, 1993,

  THE IMPORTANCE OF THE REACTIONS BETWEEN OH AND CLO FOR STRATOSPHERIC OZONE

  , GEOPHYSICAL RESEARCH LETTERS, Vol: 20, Pages: 2447-2450, ISSN: 0094-8276
  • Author Web Link
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  • Citations: 28
• Journal article
  BEKKI S, TOUMI R, PYLE JA, 1993,

  ROLE OF SULFUR PHOTOCHEMISTRY IN TROPICAL OZONE CHANGES AFTER THE ERUPTION OF MOUNT PINATUBO

  , NATURE, Vol: 362, Pages: 331-333, ISSN: 0028-0836
  • Author Web Link
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  • Citations: 44
• Journal article
  TOUMI R, BEKKI S, COX R, 1993,

  A MODEL STUDY OF ATMOS OBSERVATIONS AND THE HETEROGENEOUS LOSS OF N2O5 BY THE SULFATE AEROSOL LAYER

  , JOURNAL OF ATMOSPHERIC CHEMISTRY, Vol: 16, Pages: 135-144, ISSN: 0167-7764
  • Author Web Link
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  • Citations: 19
• Journal article
  TOUMI R, 1993,

  A POTENTIAL NEW SOURCE OF OH AND ODD-NITROGEN IN THE ATMOSPHERE

  , GEOPHYSICAL RESEARCH LETTERS, Vol: 20, Pages: 25-28, ISSN: 0094-8276
  • Cite
  • Citations: 21
• Journal article
  TOUMI R, PYLE JA, 1992,

  ON THE LIMITATION OF STEADY-STATE EXPRESSIONS AS TESTS OF PHOTOCHEMICAL THEORY OF THE STRATOSPHERE

  , JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS, Vol: 54, Pages: 819-828, ISSN: 0021-9169
  • Cite
  • Citations: 6
• Journal article
  BEKKI S, TOUMI R, PYLE JA, JONES AEet al., 1991,

  FUTURE AIRCRAFT AND GLOBAL OZONE

  , NATURE, Vol: 354, Pages: 193-194, ISSN: 0028-0836
  • Author Web Link
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  • Citations: 20
• Journal article
  TOUMI R, PYLE JA, WEBSTER CR, MAY RDet al., 1991,

  THEORETICAL INTERPRETATION OF N2O5 MEASUREMENTS

  , GEOPHYSICAL RESEARCH LETTERS, Vol: 18, Pages: 1213-1216, ISSN: 0094-8276
  • Cite
  • Citations: 7
• Journal article
  PYLE JA, TOUMI R, 1990,

  TESTING OF PHOTOCHEMICAL THEORY WITH SOLAR OCCULTATION DATA

  , JOURNAL OF ATMOSPHERIC CHEMISTRY, Vol: 11, Pages: 227-243, ISSN: 0167-7764
  • Cite
  • Citations: 4

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