Now showing items 1-10 of 10

    • Distribution and fate of selected oxygenated organic species in the troposphere and lower stratosphere over the Atlantic 

      Singh, H.; Chen, Y.; Tabazadeh, A.; Fukui, Y.; Bey, I.; Yantosca, Robert M.; Jacob, Daniel James; Arnold, F.; Wohlfrom, K.; Atlas, E.; Flocke, F.; Blake, D.; Blake, N.; Heikes, B.; Snow, J.; Talbot, R.; Gregory, G.; Sachse, G.; Vay, S.; Kondo, Yasuyuki (Wiley-Blackwell, 2000)
      A large number of oxygenated organic chemicals (peroxyacyl nitrates, alkyl nitrates, acetone, formaldehyde, methanol, methylhydroperoxide, acetic acid and formic acid) were measured during the 1997 Subsonic Assessment ...
    • In situ measurements of HCN and CH3CN over the Pacific Ocean: Sources, sinks, and budgets 

      Singh, H. B.; Salas, B; Herlth, D; Kolyer, R; Czech, E; Viezee, W; Li, Q; Jacob, Daniel James; Blake, D; Sachse, Glen; Harward, C; Fuelberg, H; Kiley, C; Zhao, Y; Kondo, Yasuyuki (Wiley-Blackwell, 2003)
      We report the first in situ measurements of hydrogen cyanide (HCN) and methyl cyanide (CH3CN, acetonitrile) from the Pacific troposphere (0–12 km) obtained during the NASA Transport and Chemical Evolution over the Pacific ...
    • Latitudinal distribution of reactive nitrogen in the free troposphere over the Pacific Ocean in late winter/early spring 

      Singh, H. B.; Viezee, W.; Chen, Y.; Thakur, A. N.; Kondo, Yasuyuki; Talbot, R. W.; Gregory, G. L.; Sachse, G. W.; Blake, D. R.; Bradshaw, J. D.; Wang, Y.; Jacob, Daniel James (Wiley-Blackwell, 1998)
      The late winter/early spring (February/March, 1994) measurements of Pacific Exploratory Mission-West (PEM-W) B have been analyzed to show latitudinal distributions (45°N to 10°S) of the mixing ratios of reactive nitrogen ...
    • Observations of HO x and its relationship with NO x in the upper troposphere during SONEX 

      Faloona, Ian; Tan, David; Brune, William H.; Jaeglé, Lyatt; Jacob, Daniel James; Kondo, Yasuyuki; Koike, M.; Chatfield, Robert; Pueschel, Rudolf; Ferry, Guy; Sachse, Glen; Vay, Stephanie; Anderson, Bruce; Hannon, John; Fuelberg, Henry (Wiley-Blackwell, 2000)
      Simultaneous measurements of the oxides of hydrogen and nitrogen made during the NASA Subsonic Assessment, Ozone and Nitrogen Oxide Experiment (SONEX) afforded an opportunity to study the coupling between these two important ...
    • OH and HO 2 chemistry in the North Atlantic free troposphere 

      Brune, W. H.; Tan, D.; Faloona, I. F.; Jaeglé, L.; Jacob, Daniel James; Heikes, B. G.; Snow, J.; Kondo, Yasuyuki; Shetter, R.; Sachse, G. W.; Anderson, B.; Gregory, G. L.; Vay, S.; Singh, H. B.; Davis, D. D.; Crawford, J. H.; Blake, D. R. (Wiley-Blackwell, 1999)
      Interactions between atmospheric hydrogen oxides and aircraft nitrogen oxides determine the impact of aircraft exhaust on atmospheric chemistry. To study these interactions, the Subsonic Assessment: Ozone and Nitrogen Oxide ...
    • Ozone production in the upper troposphere and the influence of aircraft during SONEX: approach of NO x -saturated conditions 

      Jaeglé, L.; Jacob, Daniel James; Brune, W. H.; Faloona, I. C.; Tan, D.; Kondo, Yasuyuki; Sachse, G. W.; Anderson, B.; Gregory, G. L.; Vay, S.; Singh, H. B.; Blake, D. R.; Shetter, R. (Wiley-Blackwell, 1999)
      During October/November 1997, simultaneous observations of NO, HO2 and other species were obtained as part of the SONEX campaign in the upper troposphere. We use these observations, over the North Atlantic (40–60°N), to ...
    • Ozone production in transpacific Asian pollution plumes and implications for ozone air quality in California 

      Hudman, R. C.; Jacob, Daniel James; Cooper, O. R.; Evans, M. J.; Heald, C. L.; Park, R. J.; Fehsenfeld, F.; Flocke, F.; Holloway, J.; Hübler, G.; Kita, K.; Koike, M.; Kondo, Yasuyuki; Neuman, Aaron Drake; Nowak, Jonathan Andrew; Oltmans, S.; Parrish, D.; Roberts, J. M.; Ryerson, T. (Wiley-Blackwell, 2004)
      We examine the ozone production efficiency in transpacific Asian pollution plumes, and the implications for ozone air quality in California, by using aircraft and surface observations in April–May 2002 from the Intercontinental ...
    • Photochemistry of HOx in the upper troposphere at northern midlatitudes 

      Jaeglé, L.; Jacob, Daniel James; Brune, W. H.; Faloona, I.; Tan, D.; Heikes, B. G.; Kondo, Yasuyuki; Sachse, G. W.; Anderson, B.; Gregory, G. L.; Singh, H. B.; Pueschel, R.; Ferry, G.; Blake, D. R.; Shetter, R. E. (Wiley-Blackwell, 2000)
      The factors controlling the concentrations of HO radicals (= OH + peroxy) in the upper troposphere (8–12 km) are examined using concurrent aircraft observations of OH, HO, HO, CHOOH, and CHO made during the Subsonic ...
    • Reactive nitrogen budget during the NASA SONEX Mission 

      Talbot, R. W.; Dibb, J. E.; Scheuer, E. M.; Kondo, Yasuyuki; Koike, M.; Singh, H. B.; Salas, L. B.; Fukui, Y.; Ballenthin, J. O.; Meads, R. F.; Miller, T. M.; Hunton, D. E.; Viggiano, A. A.; Blake, D. R.; Blake, N. J.; Atlas, E.; Flocke, F.; Jacob, Daniel James; Jaegle, L. (Wiley-Blackwell, 1999)
      The SASS Ozone and Nitrogen Oxides Experiment (SONEX) over the North Atlantic during October/November 1997 offered an excellent opportunity to examine the budget of reactive nitrogen in the upper troposphere (8–12 km ...
    • Testing fast photochemical theory during TRACE-P based on measurements of OH, HO2 , and CH2O 

      Olson, Jennifer R.; Crawford, J; Chen, G; Fried, A; Evans, M; Jordan, C; Sandholm, S; Davis, D; Anderson, B; Avery, M; Barrick, J; Blake, D; Brune, W; Eisele, F; Flocke, F; Harder, H; Jacob, Daniel James; Kondo, Yasuyuki; Lefer, B; Martinez, M; Mauldin, R; Sachse, G; Shetter, R; Singh, H; Talbot, R; Tan, D (Wiley-Blackwell, 2004)
      Measurements of several short-lived photochemical species (e.g., OH, HO2, and CH2O) were obtained from the DC-8 and P3-B aircraft during the NASA Transport and Chemical Evolution over the Pacific (TRACE-P) campaign. To ...