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The SCOUT-O3 Darwin Aircraft Campaign: rationale and mateorology

Brunner, D. und Siegmund, P. und May, P. T. und Chappel, L. und Schiller, C. und Müller, R. und Peter, T. und Fueglistaler, S. und MacKenzie, A. R. und Fix, A. und Schlager, H. und Allen, G. und Fjaeraa, A. M. und Streibel, M. und Harris, N. R. P. (2009) The SCOUT-O3 Darwin Aircraft Campaign: rationale and mateorology. Atmospheric Chemistry and Physics, 9, Seiten 93-117.

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An aircraft measurement campaign involving the Russian high-altitude aircraft M55 Geophysica and the German DLR Falcon was conducted in Darwin, Australia in November and December 2005 as part of the European integrated project SCOUT-O3. The overall objectives of the campaign were to study the transport of trace gases through the tropical tropopause layer (TTL), mechanisms of dehydration close to the tropopause, and the role of deep convection in these processes. In this paper a detailed roadmap of the campaign is presented, including rationales for each flight, and an analysis of the local and large-scale meteorological context in which they were embedded. The campaign took place during the pre-monsoon season which is characterized by a pronounced diurnal evolution of deep convection including a mesoscale system over the Tiwi Islands north of Darwin known as �\x83¢Â�Â�HectorâÂ�Â�. This allowed studying in detail the role of deep convection in structuring the tropical tropopause region, in situ sampling convective overshoots above storm anvils, and probing the structure of anvils and cirrus clouds by Lidar and a suite of in situ instruments onboard the two aircraft. The large-scale flow during the first half of the campaign was such that local flights, away from convection, sampled air masses downstream of the âÂ�Â�cold trapâÂ�Â� region over Indonesia. Abundant cirrus clouds enabled the study of active dehydration, in particular during two TTL survey flights. The campaign period also encompassed a Rossby wave breaking event transporting stratospheric air to the tropical middle troposphere and an equatorial Kelvin wave modulating tropopause temperatures and hence the conditions for dehydration.

Titel:The SCOUT-O3 Darwin Aircraft Campaign: rationale and mateorology
AutorenInstitution oder E-Mail-Adresse der Autoren
Brunner, D.ETH Zurich, CH
Siegmund, P.KNMI, NL
May, P. T.Bureau of Meteorology Research Centre, Melbourne, AU
Chappel, L.Bureau of Meteorology Research Centre, Melbourne, AU
Schiller, C.FZ Jülich
Müller, R.FZ Jülich
Peter, T.ETH Zurich, CH
Fueglistaler, S.ETH Zurich, CH
MacKenzie, A. R.Lancaster Univ., UK
Allen, G.Univ. of Manchester, Manchester, UK
Fjaeraa, A. M.NILU, N
Streibel, M.Univ. of Cambrige, Cambrige, UK
Harris, N. R. P.Univ. of Cambrige, Cambrige, UK
Erschienen in:Atmospheric Chemistry and Physics
Referierte Publikation:Ja
In Open Access:Ja
In ISI Web of Science:Ja
Seitenbereich:Seiten 93-117
Stichwörter:SCOUT-O3, Aircraft, Lidar
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben LIDAR-Forschung und -Entwicklung (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Lidar
Institut für Physik der Atmosphäre > Atmosphärische Spurenstoffe
Hinterlegt von: Stephanie Zähnle
Hinterlegt am:15 Jan 2009
Letzte Änderung:12 Dez 2013 20:35

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