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In Press IP6. C.D. Cappa, J.D. Smith, B.M Messer, R.C. Cohen and R.J. Saykally, The nature of the aqueous hydroxide ion probed by X-ray absorption spectroscopy, J. Phys. Chem. A., in press 2007. IP5. C.D. Cappa, J.D. Smith, W.S. Drisdell, R.J. Saykally and R.C. Cohen, Interpreting the H/D isotope fractionation of liquid water during evaporation without condensation, J. Phys. Chem. C., in press 2007. IP4. R.B. Pierce, T. K. Schaack, J. Al-Saadi, T. D. Fairlie, C. Kittaka, G. Lingenfelser, M. Natarajan, J. Olson, A. Soja, T. H. Zapotocny, A. Lenzen, J. Stobie, D. R. Johnson, M. Avery, G. Sachse, A. Thompson, R.C. Cohen, J. Dibb, J. Crawford, D. Rault, R. Martin, J. Szykman, J. Fishman, Chemical Data Assimilation Estimates of Continental US ozone and Nitrogen budgets during INTEX-A, J. Geophys. Res., 112, in press 2007. IP3. L.W. Horowitz, A.M. Fiore, G.P. Milly, R.C. Cohen, A.E. Perring, P.J. Wooldridge, P.G. Hess, L.K. Emmons, and J-F. Lamarque, Observational constraints on the chemistry of isoprene over the Eastern U.S., J. Geophys. Res., 112, doi:10.1029/2006JD007747, in press 2007. IP2. Q. Liang, L. Jaegle, R.C. Hudman, S. Turquety, D.J. Jacob, M.A. Avery, E.V. Browell, G.W. Sachse, D.R. Blake, W.H. Brune, X. Ren, R.C. Cohen, J.E. Dibb, A. Fried, H. Fuelberg, M. Porter, B.G. Heikes, L.G. Huey, H.B. Singh, P.O. Wennberg, Summertime influence of Asian pollution in the free troposphere over North America, J. Geophys. Res. 112, doi:10.1029/2006JD007919 in press 2007. IP1.
C.P. Loughner, D.J. Lary, L.C. Sparling, R.C. Cohen, P. DeCola, and
W.R. Stockwell, A method to determine the spatial resolution required
to observe air quality from space, Transactions on Geoscience
and Remote Sensing, in press, 2006. 2007 Publications
106. H.B. Singh, L. Salas, D. Herlth, R. Kolyer, E. Czech, M. Avery, J.H. Crawford, R.B. Pierce, G.W. Sachse, D.R. Blake, R.C. Cohen, A.E. Perring, T.H. Bertram, P.J. Wooldridge, J. Dibb, L.G. Huey, R.C. Hudman, S. Turquety, L.K. Emmons, F. Flocke, Y. Tang, G.R. Carmichael, L.W. Horowitz Reactive Nitrogen Distribution and Partitioning in the North American Troposphere and Lowermost Stratosphere, J. Geophys. Res. 112, D12S04, doi:10.1029/2006JD007664, 2007. Article (pdf). 105. I.M. Perez, P.J. Wooldridge and R.C. Cohen, Laboratory evaluation of a novel thermal dissociation chemiluminescence method for in situ detection of nitrous acid, Atmospheric Environment. 41, 3993-4001 2007. Article (pdf). 104. J.G. Murphy and R.C. Cohen, Chemistry and Transport of Nitrogen Oxides on the Western Slopes of the Sierra Nevada Mountains: Implications for Lake Tahoe, http://www.arb.ca.gov/research/ltads/ltads-report.htm California Air Resource Board Report 02-331, February 2007. 103. S. Kim, L.G. Huey, R.E. Stickel, D.J. Tanner, J. H. Crawford, J. R. Olson, G. Chen, W. H. Brune, X. Ren, R. Lesher, P. J. Wooldridge, T. H. Bertram, A.E. Perring, R. C. Cohen, B. Lefer, R. E. Shetter, M. Avery, G. Diskin, and I. Sokolik, Measurement of HO2NO2 in the Upper Troposphere during ICARTT-INTEX-NA 2004 J. Geophys. Res. 112, D12S01, doi:10.1029/2006JD007676, 2007. Article (pdf). 102.T.H.
Bertram, A.E. Perring, P.J. Wooldridge, J.D. Crounse, A.J. Kwan, P.O.
Wennberg, E. Sheuer, J. Dibb, M. Avery, G. Sachse, S.A. Vay, J.H. Crawford,
C.S. MacNaughton, A. Clarke, K.E. Pickering, H. Fuelberg, G. Huey, D.R.
Blake, H.B. Singh, S.R. Hall, R.E. Shetter, A. Fried, B.G. Heikes and
R.C. Cohen, Direct Measurements of the Convective Recycling
of the Upper Troposphere, Science, Jan. 2007. Article
(pdf) 2006 Publications 101. P.A. Cleary, P.J. Wooldridge, D.A. Day, D.B. Millet, M. McKay, A.H. Goldstein, and R.C. Cohen Observations of total peroxy nitrates and aldehydes: measurement interpretation and inference of OH radical concentrations, Atmos. Chem. Phys. Disc., 6, 12929-12965, 2006. Article (pdf). 100. J.G. Murphy, D.A. Day, P.A. Cleary, P.J. Wooldridge, D.B. Millet, A.H. Goldstein and R.C. Cohen, The weekend effect within and downwind of Sacramento: Part 2. Observational evidence for chemical and dynamical contributions, Atmos. Chem. Phys. Disc. 6, 11971-12019, 2006. Article (pdf). 99. J.G. Murphy, D.A. Day, P.A. Cleary, P.J. Wooldridge, D.B. Millet, A.H. Goldstein and R.C. Cohen, The weekend effect within and downwind of Sacramento: Part 1. Observations of ozone, nitrogen oxides, and VOC reactivity, Atmos. Chem. Phys. Disc. 6, 11427-11464, 2006. Article (pdf). 98. O. R. Cooper, A. Stohl, M. Trainer, A. Thompson, J. C. Witte, S. J. Oltmans, B. J. Johnson, J. Merrill, J. L. Moody, G. Morris, D. Tarasick, G. Forbes, P. Nédélec, F. C. Fehsenfeld, J. Meagher, M. J. Newchurch, F. J. Schmidlin, S. Turquety, J. H. Crawford, Gao Chen, K. E. Pickering, S. L. Baughcum, R.C. Cohen, T. H. Bertram, P.J. Wooldridge, A.E. Perring, W. H. Brune, Nicole Spichtinger and C. C. Brown, Large upper tropospheric enhancements above mid-latitude North America during summer: In situ evidence from the IONS and MOZAIC ozone monitoring networks, J. Geophys. Res., 111, D24S05, doi:10.1029/2006JD007306. 2006. Article (pdf) 97. J.D. Smith, C.D. Cappa, W.S. Drisdell, R.C. Cohen and R.J. Saykally, Raman thermometry measurements of free evaporation from water droplets, JACS 128(39); 12892-12898 2006. Article (pdf). 96. J.D. Smith, C.D. Cappa, B.M Messer, W.S. Drisdell, R.C. Cohen and R.J. Saykally, Probing the local structure of water using x-ray absorption spectroscopy, J. Phys. Chem. B, ASAP September 2006. Article (pdf). 95. A.L. Steiner, S. Tonse, R.C. Cohen, A.H. Goldstein, R.A. Harley, The influence of future climate and emissions on regional air quality in California, J. Geophys. Res. 111, D18303, doi:10.1029/2005JD006935 2006. Article (pdf). 94. R.V. Martin, C.E. Sirois, K Chance, T.B. Ryerson, T.H. Bertram, P.J. Wooldridge, R.C. Cohen, A.A. Neuman, A. Swanson, F.M. Flocke, Evaluation of space based constraints on nitrogen oxide emissions with regional aircraft measurements over and downwind of eastern North America, J. Geophys. Res. 11 (D15), Aug 2006. Article (pdf) 93. J.G. Murphy, D.A. Day, P.A. Cleary, P.J. Wooldridge, and R.C. Cohen, Observations of the diurnal and seasonal trends in nitrogen oxides in the western Sierra Nevada, Atmos. Chem. Phys. Discuss., 6, 4415-4464 2006, Atmos. Chem. Phys. 6, 5321-5338, 2006. Article (pdf). 92. E.C. Wood and R.C. Cohen, Fluorescence Methods in Atmospheric Chemistry, Chapter 4 in Analytical Techniques for Atmospheric Measurement, Dwayne Heard, Ed. Blackwell Publications 2006. 91. D.K. Farmer, P.J. Wooldridge and R.C. Cohen, Thermal-dissociation laser induced fluorescence (TD-LIF) a new technique for measurement of HNO3, ΣAlkyl nitrates, ΣPeroxy nitrates, and NO2 Eddy Covariance Fluxes, Atmos. Chem. Phys. Disc. 6, 2923-2964, 2006. Atmos. Chem. Phys. 6, 3471-3486, 2006. Article (pdf). 90. C.D. Cappa, J.D. Smith, K.R. Wilson, B.M. Messer, R.C. Cohen and R.J. Saykally Effects of Cations on the hydrogen bond structure of Liquid Water, J. Phys. Chem. B 110 (11) 5301-5309, March 2006. Article (pdf). 89. C.S. Boxe, A.J. Colussi, M.R. Hoffman, I.M. Perez, J.G. Murphy and R.C. Cohen, Kinetics of NO and NO2 evolution from illuminated frozen nitrate solutions, J. Chem Phys. A 110 (10) 3578-3583, March 2006. Article (pdf) 88.
C.D. Cappa, J.D. Smith, K.R. Wilson, B.M. Messer, R.C. Cohen and R.J.
Saykally The electronic structure of the hydrated proton: A
comparative x-ray absorption study of aqueous HCl and NaCl solutions,
J. Phys. Chem. B ASAP December 2005. Article
(pdf) 2005 Publications 87. C.D. Cappa, W.S. Drisdell, J.D. Smith. R.J. Saykally and R.C. Cohen, Isotope Fractionation of Liquid Water during Evaporation without Condensation, J. Phys. Chem. B 109 51 24391-24400 2005. Article (pdf) 86. T.H. Bertram, A. Heckel, A. Richter, J. Burrows and R.C. Cohen, Satellite measurements of daily variations in soil NOx emissions, Geophys. Res. Lett. 32 L24812, doi:10.1029/2005GL024640 2005. Article (pdf) 85. B.M. Messer, .C.D. Cappa, J.D. Smith, R.C. Cohen and R.J. Saykally An X-ray Spectroscopy Study of the Local Hydration Environments of Amino Acids and Dipeptides, J. Phys. Chem B 109, 21640, 2005 Article (pdf) 84. T.H. Bertram, R.C. Cohen, W.J. Thorn, and P.M. Chu Measurement Consistency between O3, NO and NO2 Standards at Tropospherically Relevant Levels, J. Air and Waste Management Assoc., 55, 1473-1479 2005. Article (pdf) 83. J.D. Smith, C.D. Cappa, R.C. Cohen, P.L. Geissler and R.J. Saykally, Unified Description of Temperature-dependent Hydrogen Bond Rearrangements in Liquid Water, PNAS 102 (40) 14171-14174, 2005. Article (pdf) 82. C.S. Boxe, A.J. Colussi, M.R. Hoffman, J.G. Murphy, P.J. Wooldridge, T.H. Bertram and R.C. Cohen, Photochemical Production and Release of Gaseous NO2 from Nitrate Doped Water Ice, J. Phys. Chem. A, 109, 8520-8525, 2005. Article (pdf) 81. J.D. Smith, C.D. Cappa, B.M. Messer, K.R. Wilson, R.C. Cohen and R.J. Saykally, Response to Comment on "Energetics of Hydrogen Bond Network Rearrangements in Liquid Water", Science 308 (5723) 793, 2005. 80. P.A. Cleary, P.J. Wooldridge, D.A. Day, D. Millet, M. McKay, A.H. Goldstein, and R.C. Cohen Observations of Total Alkyl nitrates within the Sacramento Urban Plume, Atmos. Chem. and Phys. Disc., 5, 4801-4843 2005. Article (pdf) 79. C.D. Cappa, J. Smith. K.R. Wilson, B.M. Messer, R.C. Cohen and R.J. Saykally Effects of Alkali Halide Salts on the x-ray Absorption Spectrum of Liquid Water, J. Phys. Chem. B, 109 (15), 7046-7052, 2005. Article (pdf)
78. B.M. Messer, .C.D. Cappa, J.D. Smith, K.R. Wilson, M.K. Gilles,
R.C. Cohen and R.J. Saykally pH dependence of the electronic
structure of glycine, J. Phys. Chem B, 109 (11), 5375-5382,
2005. Article
(pdf) 2004 Publications 77. J.D. Smith, C.D. Cappa, B.M. Messer, K.R. Wilson, R.C. Cohen and R.J. Saykally, Temperature Dependent Rearrangement of Hydrogen Bonding in Supercooled and Normal Liquid Water, Science 306, 851-853, 2004. Article (pdf) 76. E.C. Wood, T.H. Bertram, P.J. Wooldridge and R.C. Cohen, Measurements of N2O5, NO2 and O3 East of the San Francisco Bay, Atmos. Chem. Phys. Disc. 4 6645-6665 2004. Atmos. Chem. Phys. (5) 483-491, 2005. Article (pdf) 75. C.D. Cappa, K. Wilson, B. Messer, R.J. Saykally and R.C. Cohen, Optical Resonances in water Microdroplets: Implications for Shortwave cloud forcing, Geophys. Res. Lett. Vol. 31, L10205, doi: 10.1029/2004GL019593, 2004. Article (pdf) 74. W.F. Dabberdt, M.A. Carroll, D. Baumgardner, G. Carmichael, R. Cohen, T. Dye, J. Ellis, G. Grell, S. Grimmond, S. Hanna, J. Irwin, B. Lamb, S. Madronich, J. McQueen, J. Meagher, T. Odman, J. Pleim, H.P. Schmid, and D. Westphal, Meteorological Research Needs for Improved Prediction of Air Quality, Bulletin of the American Meteorological Society, April 2004 Article (pdf) 73.
R.S. Rosen, E.C. Wood, P.J. Wooldridge, J.A. Thornton, D.A. Day, R.C.
Cohen, E.J. Williams, B.T. Jobson, and B. Kuster Observations
of total alkyl nitrates during the TEXAQS-2000 Experiment J.
Geophys. Res, vol. 109 D07303, 2004. Article
(pdf) 2003 Publications 72. J.G. Murphy and R.C. Cohen, Nitrogen Oxide Photochemistry in Earth's Stratosphere: Constraints from Observations, Chemical Reviews, (103) 4985-4998 2003. Article (pdf) 71. E.C. Wood, P.J. Wooldridge, T. Albrecht, J. Frees and R.C. Cohen, A prototype for in situ detection of atmospheric NO3 and N2O5 via Laser Induced Fluorescence, Env. Sci. and Tech. (37) 5732-5738, 2003. Article (pdf) 70. J.G. Murphy, J.A. Thornton, P.J. Wooldridge, D.A. Day, R.C. Cohen, C. Cantrell, S. Hall, B. Lefer, R. Shetter Measurements of the Sum of HO2NO2 and CH3O2NO2 in the Remote Troposphere, Atmos. Chem. Phys. (4) 377-384, 2004. Article (pdf) 69. Cappa, C. D., M. B. Hendricks, D. J. DePaolo, and R. C. Cohen, Isotopic fractionation of water during evaporation, J. Geophys. Res. 2003JD003597, 2003, .Article (pdf) 68. D.A. Day, M.B. Dillon, P.J. Wooldridge, J.A. Thornton, R.S. Rosen, E.C. Wood and R.C. Cohen, On Alkyl Nitrates, Ozone and the ‘missing NOy’ J. Geophys. Res., 108 (D16), 4501, doi:10.1029/2003JD003685, 2003. Article (pdf) 67. J.A. Thornton, P.J. Wooldridge, R.C. Cohen, E.J. Williams, D. Hereid, F.C. Fehsenfeld, J. Stutz, B. Alicke, Comparisons of In Situ and Long Path Measurements of NO2 in Urban Plumes, J. Geophys. Res., 108 (D16), 4496, doi:10.1029/2003JD003559, 2003 Article (pdf) 66.
B.A. Ridley, and 30 others, including R.C. Cohen Ozone depletion
events observed in the high latitude surface layer during the TOPSE
aircraft program J. Geophys. Res. Vol. 108 No. D4 10.1029/2001JD001507,
2003. Article
(pdf) 2002 Publications 65. P.A. Cleary, P.J. Wooldridge, R.C. Cohen, Laser-induced Fluorescence Detection of Atmospheric NO2 Using a Commercial Diode Laser and a Supersonic Expansion, Applied Optics, 41(33) 6950-6956, 2002. Article (pdf) 64. W.A. McClenny, E.J. Williams, R.C. Cohen, and J. Stutz, Preparing to Measure the Effects of the NOx SIP Call: Methods for Ambient Monitoring of NO, NO2, NOy and individual NOz species, J. Air and Waste Management, 52(5) 542-562, 2002 63. J.A. Thornton, P.J. Wooldridge, R.C. Cohen, E.J. Williams, M. Martinez, W.H. Brune, S. Hall, R. Shetter, A. Fried, F. Fehsenfeld, Ozone production rates as a Function of NOx Abundances and HOx Production Rates in the Nashville Urban Plume, J. Geophys. Res., 107(D12), 10.1029/2001JD000932. Article (pdf) 62. D.A. Day, P.J. Wooldridge, M. Dillon, J.A. Thornton, R.C. Cohen, A Thermal dissociation-laser induced fluorescence instrument for in-situ detection of NO2, peroxy(acyl)nitrates, alkyl nitrates, and HNO3., J. Geophys. Res., 107(D6), 10.1029/2001JD000779, 2002. Article (pdf) 61.
M.B. Dillon, M.S. Lamanna, G.W. Schade, A.H. Goldstein, and R.C. Cohen,
Chemical Evolution of the Sacramento Urban Plume: Transport
and Oxidation,J. Geophys. Res., 107(D5), 10.1029/2001JD000969,
2002. Article
(pdf) 2001 Publications 60. J.A. Thornton, P.J. Wooldridge, R.C. Cohen Laser-Induced Fluorescence Detection of NO2, Appendix D of "Recommended Methods for Ambient Air Monitoring of NO, NO2, NOy and Individual NOz Species EPA/600/8-91/049aF" edited by W.A. McCLenny, US Environmental Protection Agency ; National Exposure Research Laboratory, Research Triangle Park, N.C. Sept. 2001. 59. E.J. Lanzendorf, T.F. Hanisco, R.M. Stimpfle, J.G. Anderson, P.O. Wennberg, R.C. Cohen, Comparing Atmospheric [HO2]/[OH] to Modeled [HO2]/[OH]: Identifying Discrepancies in Reaction Rate Constants, Geophys. Res. Lett. 28, #6, 967, 2001. Article (pdf) 58. T.F. Hanisco, E.J. Lanzendorf, K.K. Perkins, R.M. Stimpfle, P.B. Voss, J.G. Anderson, P.O. Wennberg, R.C. Cohen, D.W. Fahey, E.J. Hintsa, R.J. Salawitch, J.J. Margitan, T. McElroy, C. Midwinter, Sources, Sinks, and the Distribution of OH in the Lower Stratosphere, J. Phys. Chem. 105, 1543, 2001. Article (pdf) 57. E.J. Lanzendorf, T.F. Hanisco, R.M. Stimpfle, J.G. Anderson, P.O. Wennberg, R.C. Cohen, R.S. Gao, J.J. Margitan, T.P. Bui 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. 105, 1535, 2001. Article (pdf) 56. K.K. Perkins, T.F. Hanisco, R.C. Cohen, E.J. Lanzendorf, R.M. Stimpfle, P.B. Voss, J.G. Anderson, P.O. Wennberg, D.W. Fahey, E.J. Hintsa, R.J. Salawitch, J.J. Margitan, T. McElroy, C. Midwinter, The NOx-HNO3 System in the Lower Stratosphere: Insights from in situ Measurements and Implications of the JHNO3-OH Relationship, J. Phys. Chem. 105, 1521, 2001. Article (pdf) 55.
P.B. Voss, R.M. Stimpfle, R.C. Cohen, R.J. Salawitch, T.F. Hanisco,
G.P. Bonne, K.K. Perkins, E.J. Lanzendorf, J.G. Anderson, C.R. Webster,
D.C. Scott, R.D. May, P.O. Wennberg, P.A. Newman, L.R. Lait, J.W. Elkins,
T.P. Bui, Inorganic Chlorine Partitioning in the Summer Lower
Stratosphere: Modeled and Measured [ClONO2]/HCl] during POLARIS,
J. Geophys. Res. 106, 1713, 2001. Article
(pdf) Publications 1996 - 2000 54. R.C. Cohen, K.K. Perkins, L.C. Koch, R.M. Stimpfle, P.O. Wennberg, T.F. Hanisco, E.J. Lanzendorf, G.P. Bonne, P.B. Voss, R.J. Salawitch, L.A. Del Negro, J.C. Wilson, C.T. McElroy, T.P. Bui Quantitative Constraints on the Atmospheric Chemistry of Nitrogen Oxides: An Analysis Along Chemical Coordinates, J. Geophys. Res. 105, 24,283-24,304, 2000. Article (pdf) 53. D.W. Fahey, R.S. Gao, L.A. Del Negro, E.R. Keim, S.R. Kawa, R.J. Salawitch, P.O. Wennberg, T.F. Hanisco, E.J. Lanzendorf, K.K. Perkins, S.A. LLoyd, W.H. Swartz, M.H. Proffitt, J.J. Margitan, J.C. Wilson, R.M. Stimpfle, R.C. Cohen, C.T. McElroy, C.R. Webster, M. Loewenstein, J.W. Elkins, T.P. Bui, Ozone Destruction and Production Rates between Spring and Autumn in the Arctic Stratosphere, Geophys. Res. Lett. 27, 2605 (2000). 52. M.B. Hendricks, D.J. DePaolo, and R.C. Cohen, Meridional Moisture Transport and the Global Pattern of d18O and dD in Precipitation: Space Versus Time Variations and Implications for Ice Core Paleotemperatures, Global Biogeochemical Cycles, 14, 851 (2000). 51. G.P. Bonne, R.M. Stimpfle, R.C. Cohen, P.B. Voss, K.K. Perkins, J.G. Anderson, R.J. Salawitch, J.W. Elkins, G.S. Dutton, K.W. Jucks, G.C. Toon, B. Sen, An Examination of the Inorganic Chlorine Budget in the Lower Stratosphere, J. Geophys. Res. 105, 1957 (2000). 50. J. A. Thornton, P. J. Wooldridge, R. C. Cohen, Atmospheric NO2: In Situ Laser-Induced Fluorescence Detection at Parts per Trillion Mixing Ratios, Analytical Chemistry, 72, 528 (2000). Article (pdf) 49. B. Sen, G.B. Osterman, R.J. Salawitch, G.C. Toon, J.J. Margitan, J.-F. Blavier, A.Y. Chang, R.D. May, C.R. Webster, R.M. Stimpfle, G.P. Bonne, P.B. Voss, K.K. Perkins, J.G. Anderson, R.C. Cohen, J.W. Elkins, G.S. Dutton, P.A. Romashkin, D.F. Hurst, E.L. Atlas, S.M. Schauffler, M. Loewenstein, The Budget and Partitioning of Stratospheric Chlorine During the Arctic Summer, J. Geophys. Res. 104, 26,653 (1999). 48. L.A. Del Negro, D.W. Fahey, R.S. Gao, S.G. Donnelly, E.R. Keim, J.A. Neuman, R.C. Cohen, K.K. Perkins, L.C. Koch, R.J. Salawitch, S.A. Lloyd, M.H. Proffitt, J. Margitan, R.M. Stimpfle, G.P. Bonne, P.B. Voss, P.O. Wennberg, C.T. McElroy, W.H. Swartz, T.L. Kusterer, D.E. Anderson, L.R. Lait, T.P. Bui, Comparison of Modeled and Observed Values of NO2 and JNO2 During the POLARIS Mission, J. Geophys. Res. 104, 26,687 (1999). 47. R.M. Stimpfle, R.C. Cohen, G.P. Bonne, P.B. Voss, K.K. Perkins, L.C. Koch, J.G. Anderson, R.J. Salawitch, S.A. Lloyd, R.S. Gao, L.A. Del Negro, E.R. Keim, T.P. Bui, The Coupling of ClONO2, ClO, and NO2, in the Lower Stratosphere From in situ Observations Using the NASA ER-2 Aircraft J. Geophys. Res. 104, 26,705 (1999). 46. K. Drdla, R.F. Pueschel, A.W. Strawa, R.C. Cohen, T.F. Hanisco, Microphysics and Chemistry of Sulfate Aerosols at Warm Stratospheric Temperatures, J. Geophys. Res. 104, 26,737 (1999). 45. A.W. Strawa, K. Drdla, G.V. Ferry, S. Verma, M. Yasuda, R.J. Salawitch, R.F. Pueschel, R.S. Gao, S.D. Howard, T.P. Bui, M. Loewenstein, J.W. Elkins, K.K. Perkins, R.C. Cohen, Carbonaceous Aerosol (Soot) Measurements in the Lower Stratosphere During POLARIS and Their Role in Stratospheric Photochemistry, J. Geophys. Res. 104, 26,753 (1999). 44. G.C. Toon, J.-F. Blavier, B. Sen, J.J. Margitan, C.R. Webster, R.D. May, D. Fahey, R. Gao, L. Del Negro, M. Proffitt, J. Elkins, P.A. Romashkin, D.F. Hurst, S. Oltmans, E. Atlas, S. Schauffler, F. Flocke, T.P. Bui, R.M. Stimpfle, G.P. Bonne, P.B. Voss, R.C. Cohen, Comparison of MkIV Balloon and ER-2 Aircraft Measurements of Atmospheric Trace Gases, J. Geophys. Res. 104, 26,779 (1999). 43. P.O. Wennberg, R.J. Salawitch, D.J. Donaldson, T.F. Hanisco, E.J. Lanzendorf, K.K. Perkins, S.A. Lloyd, V. Vaida, R.S. Gao, E.J. Hintsa, R.C. Cohen, W.H. Swartz, T.L. Kusterer, D.E. Anderson, Twilight Observations Suggest Unknown Sources of HOx, Geophys. Res. Lett., 26, 1373 (1999). 42. R.S. Gao, D.W. Fahey, L.A. Del Negro, S.G. Donnelly, E.R. Keim, J.A. Neuman, E. Teverovskaia, P.O. Wennberg, T.F. Hanisco, E.J. Lanzendorf, M.H. Proffitt, J.J. Margitan, J.C. Wilson, J.W. Elkins, R.M. Stimpfle, R.C. Cohen, C.T. McElroy, T.P. Bui, R.J. Salawitch, S.S. Brown, A.R. Ravishankara, R.W. Portmann, M.K.W. Ko, D.K. Weisenstein, P.A. Newman, A Comparison of Observations and Model Simulations of the NOx/NOy Ratio in the Lower Stratosphere, Geophys. Res. Lett. 26, 1153 (1999). 41. S.R. Kawa, J. G. Anderson, S.L. Baughcum, C.A. Brock, W.H. Brune, R.C. Cohen, D.E. Kinnison, P.A. Newman, J.M. Rodriguez, R.S. Stolarski, D. Waugh, S.C. Wofsy, Assessment of the Effects of High-Speed Aircraft in the Stratosphere, National Aeronautics and Space Administration, NASA/TP-99-209236, June 1999. Lead author for Chapter 2: ‘The Atmosphere: Observations and Fundamental Physics and Chemistry.’ 40. L. Jaegle, C.R. Webster, R.D. May, D.C. Scott, R.M. Stimpfle, D.W. Kohn, P.O. Wennberg, T.F. Hanisco, R.C. Cohen, M.H. Proffitt, K.K. Kelly, J. Elkins, D. Baumgardner, J.E. Dye, J.C. Wilson, R.F. Pueschel, K.R. Chan, R.J. Salawitch, A.F. Tuck, S.J. Hovde, Y.L Yung, Evolution and Stoichiometry of Heterogeneous Processing in the Antarctic Stratosphere, J. Geophys. Res. 102, 13,235 (1997). 39. T.F. Hanisco, P.O. Wennberg, R.C. Cohen, J.G. Anderson, D.W. Fahey, E.R. Keim, R.S. Gao, R.C. Wamsley, S.G. Donnelly, L.A. Del Negro, R.J. Salawitch, K.K. Kelly, M.H. Proffitt, The Role of HOx in Super- and Subsonic Aircraft Exhaust Plumes, Geophys. Res. Lett. 24, 65 (1997). 38.
E.R. Keim, D.W. Fahey, L.A. Del Negro, E.L. Woodbridge, R.S. Gao, P.O.
Wennberg, R.C. Cohen, R.M. Stimpfle, K.K. Kelly, E.J. Hintsa, J.C. Wilson,
H.H. Jonsson, J.E. Dye, D. Baumgardner, S.R. Kawa, R.J. Salawitch, M.H.
Proffitt, M. Loewenstein, J.R. Podolske, K.R. Chan, Observations
of Large Reductions in the NO/NOy Ratio near the Mid-Latitude Tropopause
and the Role of Heterogeneous Chemistry, Geophys. Res. Lett.
23, 3223 (1996). Publications 1991 - 1995 37. P.O. Wennberg, T.F. Hanisco, R.C. Cohen, R.M. Stimpfle, L.B. Lapson, and J.G. Anderson, In Situ Measurements of OH and HO2 in the Upper Troposphere and Stratosphere, Journal of Atmospheric Science, 52, 3413 (1995). 36. S.C. Wofsy, R.C. Cohen, and A.W. Schmeltekopf, The Stratospheric Photochemistry Aerosols and Dynamics Expedition (SPADE) and the Airborne Arctic Stratospheric Expedition II (AASE-II) Geophys. Res. Lett. 21, 2535 (1994). 35. R.J. Salawitch, S.C. Wofsy, P.O. Wennberg, R.C. Cohen, J.G. Anderson, D.W. Fahey, R.S. Gao, E.R. Keim, E.L. Woodbridge, R.M. Stimpfle, J.P. Koplow, D.W. Kohn, C.R. Webster, R.D. May, L. Pfister, E.W. Gottlieb, H.A. Michelsen, G.K. Yue, M.J. Prather, J.C. Wilson, C.A. Brock, H.H. Jonsson, J.E. Dye, D. Baumgardner, M.H. Proffitt, M. Loewenstein, J.R. Podolske, J.W. Elkins, G.S. Dutton, E.J. Hintsa, A.E. Dessler, E.M. Weinstock, K.K. Kelly, K.A. Boering, B.C. Daube, K.R. Chan, S.W. Bowen, The Diurnal Variation of Hydrogen, Nitrogen, and Chlorine Radicals: Implications for the Heterogeneous Production of HNO2, Geophys. Res. Lett. 21, 2551 (1994). 34. R.J. Salawitch, S.C. Wofsy, P.O. Wennberg, R.C. Cohen, J.G. Anderson, D.W. Fahey, R.S. Gao, E.R. Keim, E.L. Woodbridge, R.M. Stimpfle, J.P. Koplow, D.W. Kohn, C.R. Webster, R.D. May, L. Pfister, E.W. Gottlieb, H.A. Michelsen, G.K. Yue, J.C. Wilson, C.A. Brock, H.H. Jonsson, J.E. Dye, D. Baumgardner, M.H. Proffitt, M. Loewenstein, J.R. Podolske, J.W. Elkins, G.S. Dutton, E.J. Hintsa, A.E. Dessler, E.M. Weinstock, K.K. Kelly, K.A. Boering, B.C. Daube, K.R. Chan, S.W. Bowen, The Distribution of Hydrogen, Nitrogen, and Chlorine Radicals in the Lower Stratosphere: Implications for Changes in O3 Due to Emission of NOy from Supersonic Aircraft, Geophys. Res. Lett. 21, 2547 (1994). 33. R.M. Stimpfle, J.P. Koplow, R.C. Cohen, D.W. Kohn, P.O. Wennberg, D.M. Judah, D.W. Toohey, L.M. Avallone, J.G. Anderson, R.J. Salawitch, E.L. Woodbridge, C.R. Webster, R.D. May, M.H. Proffitt, K. Aiken, J. Margitan, M. Loewenstein, J.R. Podolske, L. Pfister, K.R. Chan, The Response of ClO Radical Concentrations to NO2 Radical Concentrations in the Lower Stratosphere, Geophys. Res. Lett. 21, 2543 (1994). 32. Fu-Ming Tao, S. Drucker, R.C. Cohen and William Klemperer, Ab Initio Potential Energy Surface and Dynamics of He-CO, J. Chem. Phys. 101, 8680 (1994). 31. P.O. Wennberg, R.C. Cohen, R.M. Stimpfle, J.P. Koplow, J.G. Anderson, R.J. Salawitch, D.W. Fahey, E.L. Woodbridge, E.R. Keim, R.S. Gao, C.R. Webster, R.D. May, D.W. Toohey, L.M. Avallone, M.H. Proffitt, M. Loewenstein, J.R. Podolske, K.R. Chan, S.C. Wofsy, Removal of Stratospheric Ozone by Radicals: In Situ Measurements of OH, HO2, NO, NO2, ClO, and BrO, Science, 266, 398 (1994). 30. R.C. Cohen, P.O. Wennberg, R.M. Stimpfle, J. Koplow, J.G. Anderson, D.W. Fahey, E.L. Woodbridge, E.R. Keim, R. Gao, M.H. Proffitt, M. Loewenstein and K.R. Chan, Are Models of Catalytic Removal of Ozone by HOx Accurate? Constraints from In Situ Measurements of the OH to HO2 Ratio, Geophys. Res. Lett., 21, 2539 (1994). 29. P.O. Wennberg, R.C. Cohen, N.L. Hazen, L.B. Lapson, N.T. Allen, T.F. Hanisco, J.F. Oliver, N.W. Lanham, J.N. Demusz, and J.G. Anderson, An Aircraft-borne, Laser-Induced Fluorescence Instrument for the In Situ Detection of Hydroxyl and Hydroperoxyl Radicals, Rev. Sci. Instrum. 65, 1858 (1994). 28. C.A. Schmuttenmaer, R.C. Cohen, and R.J. Saykally, Spectroscopic Determination of the Intermolecular Potential Energy Surface for Ar-NH3, J. Chem. Phys. 101, 146 (1994). 27. L. Dore, R.C. Cohen, C.A. Schmuttenmaer, K.L. Busarow, M.J. Elrod, J.G. Loeser, and R.J. Saykally, Far Infrared Vibration-Rotation-Tunneling Spectroscopy and Internal Dynamics of Methane-Water: A Prototypical Hydrophobic System, J. Chem. Phys. 100, 863 (1994). 26. R.C. Cohen and R.J. Saykally, Determination of an Improved Intermolecular Potential Energy Surface of Ar-H2O, from Vibration-Rotation-Tunneling Spectroscopy J. Chem. Phys. 98, 6007 (1993). 25.
J.G. Loeser, C.A. Schmuttenmaer, R.C. Cohen, M.J. Elrod, D.W. Steyert,
R.J. Saykally, R.E. Bumgarner, and G.A. Blake, Multidimensional
Tunneling Dynamics in the Ground Vibrational State of Ammonia Dimer,
J. Chem. Phys., 97, 4727 (1992). 24. R.C. Cohen and R.J. Saykally, Vibration-Rotation-Tunneling Spectroscopy of the van der Waals Bond: A New Look at Intermolecular Forces, J. Phys. Chem., 96, 1024 (1992). 23. R.C. Cohen and R.J. Saykally, Multidimensional Intermolecular Dynamics from Tunable Far Infrared Laser Spectroscopy: Angular-Radial Coupling in the Intermolecular Potential of Ar-H2O, J. Chem. Phys., 95, 7891 (1991). 22. R.C. Cohen and R.J. Saykally, Multidimensional Intermolecular Potentials from Vibration-Rotation-Tunneling Spectra of van der Waals Complexes, Annual Reviews of Physical Chemistry, 42, 369, (1991). 21. G.A. Blake, K.B. Laughlin, R.C. Cohen, K.L. Busarow, D-H. Gwo, C.A. Schmuttenmaer, D.W. Steyert, and R.J. Saykally, The Berkeley Tunable Far Infrared Laser Spectrometers, Review of Scientific Instruments, 62, 1701 (1991). 20. G.A. Blake, K.B. Laughlin, R.C. Cohen, K.L. Busarow, D-H. Gwo, C.A. Schmuttenmaer, D.W. Steyert, and R.J. Saykally, Tunable Far Infrared Laser Spectrometers, Review of Scientific Instruments, 62, 1693 (1991). 19. C.A. Schmuttenmaer, R.C. Cohen, J. G. Loeser, and R.J. Saykally, Far Infrared Vibration-Rotation-Tunneling Spectroscopy of Ar?NH3: Intermolecular Vibrations and Effective Angular Potential Energy Surface, J. Chem. Phys., 95, 9 (1991). 18.
M. Havenith, R.C. Cohen, K.L. Busarow, D-H. Gwo, Y.T. Lee and R.J. Saykally,
Measurement of the Intermolecular Vibration-Rotation-Tunneling
Spectrum of Ammonia Dimer by Tunable Far Infrared Laser Spectroscopy
in a Planar Supersonic Jet, J. Chem. Phys., 94, 4776 (1991). Publications 1986 - 1990 17. G. Dz-Hung, M. Havenith, R.C. Cohen, K.L. Busarow, C.A. Schmuttenmaer, and R.J. Saykally, Tunable Far Infrared Laser Spectroscopy of van der Waals Bonds: the jka =1000 S?Bending Vibration of Ar-14NH3, Molecular Physics, 71, 453 (1990). 16. R.C. Cohen and R.J. Saykally, Extending the Collocation Method to Multidimensional Molecular Dynamics: Direct Determination of the Intermolecular Potential for Ar-H2O from Tunable Far Infrared Laser Spectroscopy, Journal of Physical Chemistry, 94, 7991 (1990). 15. C.A. Schmuttenmaer, R.C. Cohen, N. Pugliano, J. Heath, A.L. Cooksy, K.L. Busarow, and R.J. Saykally, Tunable Far Infrared Laser Spectroscopy of Jet-Cooled Carbon Clusters: the n2 Bending Vibration of C3, Science, 249, 897 (1990). 14. R.C. Cohen, K.L. Busarow, Y.T. Lee, and R.J. Saykally, Tunable Far Infrared Laser Spectroscopy of Van der Waals Bonds: the Intermolecular Stretching Vibration and Effective Radial Potentials for Ar-H2O, Journal of Chemical Physics 92, 169 (1990). 13. R.C. Cohen, K.L. Busarow, C.A. Schmuttenmaer, Y.T. Lee, and R.J. Saykally, Tunable Far Infrared Laser Spectroscopy of Ultracold Free Radicals, Chemical Physics Letters 164, 321 (1989). 12. K.B. Laughlin, G.A. Blake, R.C. Cohen, and R.J. Saykally, Experimental Determination of Dipole Moments for Molecular Ions: Improved Measurements for ArH+, Journal of Chemical Physics 90, 1358 (1989). 11. K.L. Busarow, R.C. Cohen, G.A. Blake, K.B. Laughlin, Y.T. Lee, and R.J. Saykally, Measurement of the Perpendicular Rotation-Tunneling Spectrum of the Water Dimer by Tunable Far Infrared Laser Spectroscopy, Journal of Chemical Physics 90, 3937 (1989). 10. G.A. Blake, K.L. Busarow, R.C. Cohen, K.B. Laughlin, Y.T. Lee, and R.J. Saykally, Tunable Far Infrared Laser Spectroscopy of Hydrogen Bonds: the Ka=0(u)®1(g) Rotation-Tunneling Spectrum of HCl Dimer, Journal of Chemical Physics, 89, 6577 (1988). 9. R.C. Cohen, K.L. Busarow, K.B. Laughlin, G.A. Blake, M. Havenith, Y.T. Lee, and R.J. Saykally, Tunable Far Infrared Laser Spectroscopy of Van der Waals Bonds: Vibration-Rotation-Tunneling Spectra of Ar-H2O, Journal of Chemical Physics 89, 4494 (1988). 8. K.L. Busarow, G.A. Blake, K.B. Laughlin, R.C. Cohen, Y.T. Lee, and R.J. Saykally, Tunable Far Infrared Laser Spectroscopy of Van der Waals Bonds: Extended Measurements of the S Bending Vibration of Ar?HCl, Journal of Chemical Physics 89, 1268 (1988). 7. K.B. Laughlin, G.A. Blake, R.C. Cohen, D.C. Hovde, and R.J. Saykally, Determination of the Dipole Moments of Molecular Ions from the Rotational Zeeman Effect by Tunable Far Infrared Laser Spectroscopy, Philosophical Transactions of the Royal Society A234, 109 (1988). 6. K.L. Busarow, G.A. Blake, K.B. Laughlin, R.C. Cohen, Y.T. Lee, and R.J. Saykally, Tunable Far Infrared Laser Spectroscopy in a Planar Supersonic Jet: the S Bending Vibration of Ar-HCl, Chemical Physics Letters 141, 289 (1987). 5. W.C. Pringle, W.R. Gronlund, and R.C. Cohen, Collision Induced Far Infrared Spectrum of Cyclopropane, Molecular Physics 62, 669 (1987). 4. W.C. Pringle, R.C. Cohen, and S.M. Jacobs, Analysis of the Collision Induced Far Infrared Spectrum of Ethlyene, Molecular Physics 62, 661 (1987). 3. G.A. Blake, K.B. Laughlin, R.C. Cohen, and R.J Saykally, Laboratory Measurement of the Pure Rotational Spectrum of Vibrationally Excited HCO+ by Far Infrared Laser Sideband Spectroscopy, The Astrophysical Journal 316, L45 (1987). 2. K.B. Laughlin, G.A. Blake, R.C. Cohen, D.C. Hovde, and R.J. Saykally, Determination of the Dipole Moment of ArH+ from the Rotational Zeeman Effect by Tunable Far Infrared Laser Spectroscopy, Physical Review Letters, 58, 996 (1987). 1. R.C. Cohen and W.C. Pringle, Analysis of the Collision Induced Far Infrared Spectrum of Ethane, Spectrochimica Acta 42A, 241 (1986).
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