the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Instrumentation and measurement strategy for the NOAA SENEX aircraft campaign as part of the Southeast Atmosphere Study 2013
Carsten Warneke
Michael Trainer
Joost A. de Gouw
David D. Parrish
David W. Fahey
A. R. Ravishankara
Ann M. Middlebrook
Charles A. Brock
James M. Roberts
Steven S. Brown
Jonathan A. Neuman
Brian M. Lerner
Daniel Lack
Daniel Law
Gerhard Hübler
Iliana Pollack
Steven Sjostedt
Thomas B. Ryerson
Jessica B. Gilman
Jin Liao
John Holloway
Jeff Peischl
John B. Nowak
Kenneth C. Aikin
Kyung-Eun Min
Rebecca A. Washenfelder
Martin G. Graus
Mathew Richardson
Milos Z. Markovic
Nick L. Wagner
André Welti
Patrick R. Veres
Peter Edwards
Joshua P. Schwarz
Timothy Gordon
William P. Dube
Stuart A. McKeen
Jerome Brioude
Ravan Ahmadov
Aikaterini Bougiatioti
Jack J. Lin
Athanasios Nenes
Glenn M. Wolfe
Thomas F. Hanisco
Ben H. Lee
Felipe D. Lopez-Hilfiker
Joel A. Thornton
Frank N. Keutsch
Jennifer Kaiser
Jingqiu Mao
Courtney D. Hatch
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.
- Article
(13062 KB) - Full-text XML
- BibTeX
- EndNote