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SCOUT-O3/ACITVE High-altitude Aircraft Measurements around Deep Tropical Convection

Vaughan, G. and Schiller, C. and MacKenzie, A.R. and Bower, K. and Peter, T. and Schlager, H. and Harris, N.R.P. and May, P.T. (2008) SCOUT-O3/ACITVE High-altitude Aircraft Measurements around Deep Tropical Convection. Bulletin of the American Meteorological Society, 89, pp. 647-662. DOI: 10.1175/BAMS-89-5-647.

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Official URL: http://ams.allenpress.com/perlserv/?request=get-archive&issn=1520-0477

Abstract

During November and December 2005, two consortia of mainly European groups conducted an aircraft campaign in Darwin, Australia, to measure the composition of the tropical upper-troposphere and tropopause regions, between 12 and 20 km, in order to investigate the transport and transformation in deep convection of water vapor, aerosols, and trace chemicals. The campaign used two high-altitude aircraft—the Russian M55 Geophysica and the Australian Grob 520 Egrett, which can reach 20 and 15 km, respectively—complemented by upward-pointing lidar measurements from the DLR Falcon and low-level aerosol and chemical measurements from the U.K. Dornier-228. The meteorology during the campaign was characterized mainly by premonsoon conditions—isolated afternoon thunderstorms with more organized convective systems in the evening and overnight. At the beginning of November pronounced pollution resulting from widespread biomass burning was measured by the Dornier, giving way gradually to cleaner conditions by December, thus affording the opportunity to study the influence of aerosols on convection. The Egrett was used mainly to sample in and around the outflow from isolated thunderstorms, with a couple of survey missions near the end. The Geophysica–Falcon pair spent about 40% of their flight hours on survey legs, prioritizing remote sensing of water vapor, cirrus, and trace gases, and the remainder on close encounters with storm systems, prioritizing in situ measurements. Two joint missions with all four aircraft were conducted: on 16 November, during the polluted period, sampling a detached anvil from a single-cell storm, and on 30 November, around a much larger multicellular storm.

Document Type:Article
Title:SCOUT-O3/ACITVE High-altitude Aircraft Measurements around Deep Tropical Convection
Authors:
AuthorsInstitution or Email of Authors
Vaughan, G.Univ. of Manchester, Manchester, UK
Schiller, C.FZ Jülich, Jülich
MacKenzie, A.R.Lancaster Univ., Lancaster, UK
Bower, K.Univ. of Manchester, Manchester, UK
Peter, T.ETH, Zürich, CH
Schlager, H.UNSPECIFIED
Harris, N.R.P.Univ. of Cambridge, Cambridge, UK
May, P.T.Bureau of Meteorology Research Centre, Melbourne, AU
Date:May 2008
Journal or Publication Title:Bulletin of the American Meteorological Society
Volume:89
DOI:10.1175/BAMS-89-5-647
Page Range:pp. 647-662
Status:Published
Keywords:Tropical convection, thunderstorms, UTLS
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Atmosphären- und Klimaforschung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Helga Jesse
Deposited On:20 Nov 2008
Last Modified:12 Dec 2013 20:26

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