SONEX airborne mission and coordinated POLINAT-2 activity: Overview and accomplishments

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dc.contributor.authorSingh, Hanwant B.
dc.contributor.authorThompson, Anne M.
dc.contributor.authorSchlager, H.
dc.date.accessioned2024-07-26T16:34:09Z
dc.date.available2024-07-26T16:34:09Z
dc.date.issued1999-10-15
dc.description.abstractThe SASS (Subsonic Assessment) Ozone and NOx Experiment (SONEX) was an airborne field campaign conducted in October–November 1997 in the vicinity of the North Atlantic Flight Corridor to study the impact of aircraft emissions on NOx and ozone (O₃). A fully instrumented NASA DC-8 aircraft was used as the primary SONEX platform. SONEX activities were closely coordinated with the European POLINAT-2 (Pollution from Aircraft Emissions in the North Atlantic Flight Corridor) program, which used a Falcon-20 aircraft. Both campaigns focused on the upper troposphere/“lowermost” stratosphere (UT/LS) as the region of greatest interest. Specific sampling goals were achieved with the aid of a state-of-the art modeling and meteorological support system, which allowed targeted sampling of air parcels with desired characteristics. A substantial impact of aircraft emissions on NOx, O₃, and CN in the UT/LS of the study region is shown to be present. This mission provided direct support for the highly nonlinear nature of the NOx-O₃ chemistry. The results are being published in Special Sections of GRL and JGR. This overview provides a context within which these publications can be understood.
dc.description.sponsorshipSONEX was sponsored by the NASA Atmospheric Effects of Aviation SASS (Subsonies Assessment)Project. We thank R.Friedl, S. Kawa, and D. Anderson (SASS Project Scientists),U. Schumann(POLINAT Scientific Coordinator),J. Eilers(SONEX Project Manager),and the NASA DC-8 and DLR Falcon flight teams for their help in making this project a success. Meteorological support by H.FuelbergP. Velthoven, and H. Selkirkis much appreciated
dc.description.urihttps://onlinelibrary.wiley.com/doi/abs/10.1029/1999GL900588
dc.format.extent4 pages
dc.genrejournal articles
dc.identifierdoi:10.13016/m2wa63-f38r
dc.identifier.citationSingh, Hanwant B., Anne M. Thompson, and H. Schlager. “SONEX Airborne Mission and Coordinated POLINAT-2 Activity: Overview and Accomplishments.” Geophysical Research Letters 26, no. 20 (October 15, 1999): 3053–56. https://doi.org/10.1029/1999GL900588.
dc.identifier.urihttps://doi.org/10.1029/1999GL900588
dc.identifier.urihttp://hdl.handle.net/11603/34929
dc.language.isoen_US
dc.publisherAGU
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC GESTAR II
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rightsPublic Domain
dc.rights.urihttps://creativecommons.org/publicdomain/mark/1.0/
dc.titleSONEX airborne mission and coordinated POLINAT-2 activity: Overview and accomplishments
dc.typeText
dcterms.creatorhttps://orcid.org/0000-0002-7829-0920

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