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NO and NOy in the upper troposphere: Nine years of CARIBIC measurements onboard a passenger aircraft

Stratmann, Greta and Ziereis, Helmut and Stock, Paul and Brenninkmeijer, C.A. and Zahn, A. and Rauthe-Schöch, A. and Velthoven, Peter van and Schlager, Hans and Volz-Thomas, A. (2016) NO and NOy in the upper troposphere: Nine years of CARIBIC measurements onboard a passenger aircraft. Atmospheric Environment (133), pp. 93-111. Elsevier. DOI: doi:10.1016/j.atmosenv.2016.02.035 ISSN 1352-2310

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Official URL: http://dx.doi.org/10.1016/j.atmosenv.2016.02.035

Abstract

Nitrogen oxide (NO and NOy) measurements were performed onboard an in-service aircraft within the framework of CARIBIC (Civil Aircraft for the Regular Investigation of the atmosphere Based on an Instrument Container). A total of 330 flights were completed from May 2005 through April 2013 between Frankfurt/Germany and destination airports in Canada, the USA, Brazil, Venezuela, Chile, Argentina, Colombia, South Africa, China, South Korea, Japan, India, Thailand, and the Philippines. Different regions show differing NO and NOy mixing ratios. In the mid-latitudes, observed NOy and NO generally shows clear seasonal cycles in the upper troposphere with a maximum in summer and a minimum in winter. Mean NOy mixing ratios vary between 1.36 nmol/mol in summer and 0.27 nmol/mol in winter. Mean NO mixing ratios range between 0.05 nmol/mol and 0.22 nmol/mol. Regions south of 40°N show no consistent seasonal dependence. Based on CO observations, low, median and high CO air masses were defined. According to this classification, more data was obtained in high CO air masses in the regions south of 40°N compared to the midlatitudes. This indicates that boundary layer emissions are more important in these regions. In general, NOy mixing ratios are highest when measured in high CO air masses. This dataset is one of the most comprehensive NO and NOy dataset available today for the upper troposphere and is therefore highly suitable for the validation of atmosphere-chemistry-models.

Item URL in elib:https://elib.dlr.de/97044/
Document Type:Article
Title:NO and NOy in the upper troposphere: Nine years of CARIBIC measurements onboard a passenger aircraft
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Stratmann, GretaDLR, IPAUNSPECIFIED
Ziereis, HelmutDLR, IPAUNSPECIFIED
Stock, PaulDLR, IPAUNSPECIFIED
Brenninkmeijer, C.A.MPI Chemie, MainzUNSPECIFIED
Zahn, A.IMK, KarlsruheUNSPECIFIED
Rauthe-Schöch, A.MPI Chemie, MainzUNSPECIFIED
Velthoven, Peter vanKNMI, De Bilt, NLUNSPECIFIED
Schlager, HansDLR, IPAUNSPECIFIED
Volz-Thomas, A.FZ JülichUNSPECIFIED
Date:February 2016
Journal or Publication Title:Atmospheric Environment
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :doi:10.1016/j.atmosenv.2016.02.035
Page Range:pp. 93-111
Publisher:Elsevier
ISSN:1352-2310
Status:Published
Keywords:Nitrogen oxide Upper troposphere Atmosphere Airborne Climatology In-service aircraft
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Atmosphären- und Klimaforschung
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Stratmann, Greta
Deposited On:08 Jul 2015 10:44
Last Modified:31 Jul 2019 19:53

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