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MOZAIC-IAGOS 20th Anniversary Symposium

Climatology of NOy in the troposphere and UT/LS from measurements made in MOZAIC

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Article: 28793 | Received 08 Jun 2015, Accepted 24 Sep 2015, Published online: 29 Oct 2015
 

Abstract

In December 2000, a fully automatic NOy instrument was installed on one of the five Airbus A340 aircraft used in the MOZAIC project (Measurement of Ozone and Water Vapour by Airbus in-service Aircraft) for measurements of O3 and H2O since 1994. This long-range aircraft was operated by Lufthansa, mainly out of Frankfurt and Munich. After an initial testing period, regular data collection started in May 2001. Until May 2005, 1533 flights have been recorded, corresponding to 8500 flight hours of NOy measurements. Concurrent data of NOy and O3 are available from 1433 flights and concurrent data for CO, O3 and NOy exist from 1125 flights since 2002. The paper describes the data availability in terms of geographical, vertical and seasonal distribution and discusses the quality and limitations of the data, including interference by HCN. The vast majority of vertical profiles were measured over Frankfurt, followed by Munich and North American airports. While most of the data were collected in the upper troposphere and lower stratosphere over the North Atlantic, significant data sets exist also from flights to Far and Middle East, whereas data from the tropics and the Southern Hemisphere are relatively sparse.

This paper is part of a Special Issue on MOZAIC/IAGOS in Tellus B celebrating 20 years of an ongoing air chemistry-climate research measurement from airbus commercial aircraft operated by an international consortium of countries. More papers from this issue can be found at http://www.tellusb.net

To access the supplementary material to this article, please see Supplementary files under ‘Article Tools’.

This paper is part of a Special Issue on MOZAIC/IAGOS in Tellus B celebrating 20 years of an ongoing air chemistry-climate research measurement from airbus commercial aircraft operated by an international consortium of countries. More papers from this issue can be found at http://www.tellusb.net

To access the supplementary material to this article, please see Supplementary files under ‘Article Tools’.

5. Acknowledgements

MOZAIC was co-funded by the European Commission between 1993 and 2003. The authors gratefully acknowledge the strong support by Deutsche Lufthansa AG for free transportation of the instruments and the technical support by Lufthansa Technik AG and enviscope GmbH during installation and operation. The authors also thank Fernand Karcher and his colleagues of Météo France, Toulouse, for hosting the MOZAIC database and for providing information on potential vorticity.

Notes

This paper is part of a Special Issue on MOZAIC/IAGOS in Tellus B celebrating 20 years of an ongoing air chemistry-climate research measurement from airbus commercial aircraft operated by an international consortium of countries. More papers from this issue can be found at http://www.tellusb.net

To access the supplementary material to this article, please see Supplementary files under ‘Article Tools’.