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Your search keyword '"David, Tanner"' showing total 4 results
Start Over Author "David, Tanner" Publication Type Reports
4 results on '"David, Tanner"'

1. Large contribution of biomass burning emissions to ozone throughout the global remote troposphere

Author

Ilann Bourgeois, Jeff Peischl, J. Andrew Neuman, Steven S. Brown, Chelsea R. Thompson, Kenneth C. Aikin, Hannah M. Allen, Hélène Angot, Eric C. Apel, Colleen B. Baublitz, Jared F. Brewer, Pedro Campuzano-Jost, Róisín Commane, John D. Crounse, Bruce C. Daube, Joshua P. DiGangi, Glenn S. Diskin, Louisa K. Emmons, Arlene M. Fiore, Georgios I. Gkatzelis, Alan Hills, Rebecca S. Hornbrook, L. Gregory Huey, Jose L. Jimenez, Michelle Kim, Forrest Lacey, Kathryn McKain, Lee T. Murray, Benjamin A. Nault, David D. Parrish, Eric Ray, Colm Sweeney, David Tanner, Steven C. Wofsy, and Thomas B. Ryerson

Published
2021
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2. Atmospheric Acetaldehyde: Importance of Air‐Sea Exchange and a Missing Source in the Remote Troposphere

Author

Siyuan Wang, Rebecca S. Hornbrook, Alan Hills, Louisa K. Emmons, Simone Tilmes, Jean‐François Lamarque, Jose L. Jimenez, Pedro Campuzano‐Jost, Benjamin A. Nault, John D. Crounse, Paul O. Wennberg, Michelle Kim, Hannah Allen, Thomas B. Ryerson, Chelsea R. Thompson, Jeff Peischl, Fred Moore, David Nance, Brad Hall, James Elkins, David Tanner, L. Gregory Huey, Samuel R. Hall, Kirk Ullmann, John J. Orlando, Geoff S. Tyndall, Frank M. Flocke, Eric Ray, Thomas F. Hanisco, Glenn M. Wolfe, Jason St. Clair, Róisín Commane, Bruce Daube, Barbara Barletta, Donald R. Blake, Bernadett Weinzierl, Maximilian Dollner, Andrew Conley, Francis Vitt, Steven C. Wofsy, Daniel D. Riemer, and Eric C. Apel

Published
2019
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3. Integration of Airborne and Ground Observations of Nitryl Chloride in the Seoul Metropolitan Area and the Implications on Regional Oxidation Capacity During KORUS-AQ 2016

Author

Duan Jeong, Roger Seco, Dasa Gu, Youngro Lee, Benjamin A. Nault, Christoph J. Knote, Tom McGee, John T Sullivan, Jose L. Jimenez, Pedro Campuzano-jost, Donald R. Blake, Dianne Sanchez, Alex B. Guenther, David Tanner, L. Gregory Huey, Russell Long, Bruce E Anderson, Samuel R. Hall, Kirk Ullmann, Hye-jung Shin, Scott C. Herndon, Youngjae Lee, Danbi Kim, Joonyoung Ahn, and Saewung Kim

Subjects
Geosciences (General)
Abstract

Nitryl chloride (ClNO2) is a radical reservoir species that releases chlorine radicals upon photolysis. An integrated analysis of the impact of ClNO2on regional photochemistry in the Seoul metropolitan area (SMA) during the Korea–United States Air Quality Study (KORUS-AQ) 2016 field campaign is presented. Comprehensive multiplatform observations were conducted aboard the NASA DC-8 and at two ground sites (Olympic Park, OP; Taehwa Research Forest, TRF), representing an urbanized area and a forested suburban region, respectively. Positive correlations between daytime Cl2 and ClNO2 were observed at both sites, the slope of which was dependent on O3 levels. The possible mechanisms are explored through box model simulations constrained with observations. The overall diurnal variations in ClNO2 at both sites appeared similar but the night-time variations were systematically different. For about half of the observation days at the OP site the level of ClNO2 increased at sunset but rapidly decreased at around midnight. On the other hand, high levels were observed throughout the night at the TRF site. Significant levels of ClNO2 were observed at both sites for 4–5 h after sunrise. Airborne observations, box model calculations, and back-trajectory analysis consistently show that these high levels of ClNO2 in the morning are likely from vertical or horizontal transport of air masses from the west. Box model results show that chlorine-radical-initiated chemistry can impact the regional photochemistry by elevating net chemical production rates of ozone by ∼25 % in the morning.

Published
2019
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4. Integration of Airborne and Ground Observations of Nitryl Chloride in the Seoul Metropolitan Area and the Implications on Regional Oxidation Capacity During KORUS-AQ 2016

Author

Daun Jeong, Roger Seco, Dasa Gu, Youngro Lee, Benjamin A. Nault, Christoph J. Knote, Tom Mcgee, John T. Sullivan, Jose L. Jimenez, Pedro Campuzano-Jost, Donald R. Blake, Dianne Sanchez, Alex B. Guenther, David Tanner, L. Gregory Huey, Russell Long, Bruce E. Anderson, Samuel R. Hall, Kirk Ullmann, Hye-Jung Shin, Scott C. Herndon, Youngjae Lee, Danbi Kim, Joonyoung Ahn, and Saewung Kim

Published
2018
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