elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Kontakt | English
Schriftgröße: [-] Text [+]

Development of ice particles in convective clouds observed over the Black Forest mountains during COPS

Huang, Yahui und Blyth, Alan M. und Brown, Philip R. A. und Cotton, Richard und Crosier, Jonathan und Bower, Keith N. und Gallagher, Martin W. und Jones, Hazel und Gadian, Alan M. und Choularton, Tom W. und Cardwell, John und Coe, Hugh und Mobbs, Stephen D. und Hagen, Martin (2011) Development of ice particles in convective clouds observed over the Black Forest mountains during COPS. Quarterly Journal of the Royal Meteorological Society, 137, Seiten 275-286. DOI: 10.1002/qj.749.

[img]
Vorschau
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
487kB

Offizielle URL: http://onlinelibrary.wiley.com/doi/10.1002/qj.749/abstract

Kurzfassung

A combination of modelling studies and ground-based and aircraft measurements is used to examine the development of ice particles in convective clouds observed over the Black Forest mountains during the Convective and Orographically-induced Precipitation Study (COPS). High concentrations of relatively small ice particles were observed in the weaker northern cell that developed on convergence lines over the mountains in the much-studied 15 July 2007 case. The conditions in the cloud were not conducive for the Hallett�Mossop process. Instead, the explanation for such high concentrations of ice is likely associated with the type of ice nuclei ingested into the cloud. Biological nuclei, oxidised organic aerosol particles in the polluted air vented from the Murg valley into the cloud base, and desert dust are all possible candidates. A model sensitivity test with biological nuclei produced similar concentrations of ice particles to the observations. In contrast, the high concentration of ice particles measured in clouds that advected over the Black Forest mountains on 11 July 2007 were likely due to the Hallett�Mossop process. The deep convective cell at the southern end of the COPS domain on 15 July 2007 developed in less polluted air than the shallower northern cloud. A model sensitivity test with lower aerosol loading produced a more vigorous cloud with a higher top, more precipitation, and greater reflectivity, more similar to the radar observations. The results suggest that aerosol particles vented out of the valleys could have a significant impact on orographically induced precipitation.

Dokumentart:Zeitschriftenbeitrag
Titel:Development of ice particles in convective clouds observed over the Black Forest mountains during COPS
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Huang, YahuiUni of Leeds, UK
Blyth, Alan M.Uni of Leeds, UK
Brown, Philip R. A.Met Office, Exeter, UK
Cotton, RichardMet Office, Exeter, UK
Crosier, JonathanUni of Manchester, UK
Bower, Keith N.Uni of Manchester, UK
Gallagher, Martin W.Uni of Manchester, UK
Jones, HazelUni of Manchester, UK
Gadian, Alan M.Uni of Leeds, UK
Choularton, Tom W.Uni of Manchester, UK
Cardwell, JohnUni of Manchester, UK
Coe, HughUni of Manchester, UK
Mobbs, Stephen D.Uni of Leeds, UK
Hagen, MartinDLR
Datum:1 Dezember 2011
Erschienen in:Quarterly Journal of the Royal Meteorological Society
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:137
DOI :10.1002/qj.749
Seitenbereich:Seiten 275-286
Status:veröffentlicht
Stichwörter:orographic clouds, ice nuclei, aerosol
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erdbeobachtung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):R - Vorhaben Atmosphären- und Klimaforschung
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Wolkenphysik und Verkehrsmeteorologie
Hinterlegt von: Jana Freund
Hinterlegt am:13 Mai 2011 11:48
Letzte Änderung:12 Dez 2013 21:17

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.