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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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Volume 9, issue 7 | Copyright
Atmos. Meas. Tech., 9, 3063-3093, 2016
https://doi.org/10.5194/amt-9-3063-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 18 Jul 2016

Research article | 18 Jul 2016

Instrumentation and measurement strategy for the NOAA SENEX aircraft campaign as part of the Southeast Atmosphere Study 2013

Carsten Warneke1,2, Michael Trainer2, Joost A. de Gouw1,2, David D. Parrish1,2, David W. Fahey2, A. R. Ravishankara2,a, Ann M. Middlebrook2, Charles A. Brock2, James M. Roberts2, Steven S. Brown2, Jonathan A. Neuman1,2, Brian M. Lerner1,2, Daniel Lack1,2, Daniel Law1,2, Gerhard Hübler1,2, Iliana Pollack1,2,a, Steven Sjostedt1,2, Thomas B. Ryerson2, Jessica B. Gilman1,2, Jin Liao1,2, John Holloway1,2, Jeff Peischl1,2, John B. Nowak1,2,b, Kenneth C. Aikin1,2, Kyung-Eun Min1,2,c, Rebecca A. Washenfelder1,2, Martin G. Graus1,2,d, Mathew Richardson1,2, Milos Z. Markovic1,2,e, Nick L. Wagner1,2, André Welti1,2,f, Patrick R. Veres1,2, Peter Edwards1,2,g, Joshua P. Schwarz2, Timothy Gordon1,2, William P. Dube1,2, Stuart A. McKeen1,2, Jerome Brioude1,2, Ravan Ahmadov1,2, Aikaterini Bougiatioti3, Jack J. Lin3, Athanasios Nenes3,11,12, Glenn M. Wolfe4,9, Thomas F. Hanisco4, Ben H. Lee5, Felipe D. Lopez-Hilfiker5, Joel A. Thornton5,i, Frank N. Keutsch6,h, Jennifer Kaiser6,j, Jingqiu Mao7,10, and Courtney D. Hatch8 Carsten Warneke et al.
  • 1Cooperative Institute for Research in Environmental Sciences, Univ. of Colorado, Boulder, CO, USA USA
  • 2Chemical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO, USA
  • 3Georgia Institute of Technology, Atlanta, GA, USA
  • 4NASA Goddard Space Flight Center, Greenbelt, MD, USA
  • 5University of Washington, Seattle, WA, USA
  • 6University of Wisconsin–Madison, Madison, WI, USA
  • 7Geophysical Fluid Dynamics Laboratory, NOAA, Princeton, NJ, USA
  • 8Department of Chemistry, Hendrix College, 1600 Washington Ave., Conway, AR, USA
  • 9University of Maryland Baltimore County, Baltimore, MD, USA
  • 10Princeton University, Princeton, NJ, USA
  • 11Foundation for Research and Technology Hellas, Hellas, Athens, Greece
  • 12National Observatory of Athens, Athens, Greece
  • anow at: Department of Atmospheric Science, Colorado State University, Ft Collins, CO, USA
  • bnow at: Aerodyne Research Inc., Billerica, MA, USA
  • cnow at: Gwangju Institute of Science and Technology, Gwangju, Korea
  • dnow at: Institute of Atmospheric and Cryospheric Sciences, University of Innsbruck, Innsbruck, Austria
  • enow at: Air Quality Processes Research Section, Environment Canada, Toronto, Ontario, Canada
  • fnow at: Leibniz Institute for Tropospheric Research, Leipzig, Germany
  • gnow at: University of York, York, UK
  • hnow at: Harvard University, Cambridge, MA, USA
  • inow at: Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen, Switzerland
  • jnow at: Harvard University, School of Engineering and Applied Sciences, Cambridge, MA, USA

Abstract. Natural emissions of ozone-and-aerosol-precursor gases such as isoprene and monoterpenes are high in the southeastern US. In addition, anthropogenic emissions are significant in the southeastern US and summertime photochemistry is rapid. The NOAA-led SENEX (Southeast Nexus) aircraft campaign was one of the major components of the Southeast Atmosphere Study (SAS) and was focused on studying the interactions between biogenic and anthropogenic emissions to form secondary pollutants. During SENEX, the NOAA WP-3D aircraft conducted 20 research flights between 27 May and 10 July 2013 based out of Smyrna, TN.

Here we describe the experimental approach, the science goals and early results of the NOAA SENEX campaign. The aircraft, its capabilities and standard measurements are described. The instrument payload is summarized including detection limits, accuracy, precision and time resolutions for all gas-and-aerosol phase instruments. The inter-comparisons of compounds measured with multiple instruments on the NOAA WP-3D are presented and were all within the stated uncertainties, except two of the three NO2 measurements.

The SENEX flights included day- and nighttime flights in the southeastern US as well as flights over areas with intense shale gas extraction (Marcellus, Fayetteville and Haynesville shale). We present one example flight on 16 June 2013, which was a daytime flight over the Atlanta region, where several crosswind transects of plumes from the city and nearby point sources, such as power plants, paper mills and landfills, were flown. The area around Atlanta has large biogenic isoprene emissions, which provided an excellent case for studying the interactions between biogenic and anthropogenic emissions. In this example flight, chemistry in and outside the Atlanta plumes was observed for several hours after emission. The analysis of this flight showcases the strategies implemented to answer some of the main SENEX science questions.

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In this paper we describe the experimental approach, the science goals and early results of the NOAA SENEX campaign, which was focused on studying the interactions between biogenic and anthropogenic emissions to form secondary pollutants. During SENEX, the NOAA WP-3D aircraft conducted 20 research flights between 27 May and 10 July 2013 based out of Smyrna, TN. The SENEX flights included day- and nighttime flights in the Southeast as well as flights over areas with intense shale gas extraction.
In this paper we describe the experimental approach, the science goals and early results of the...
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