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On the upper tropospheric formation and occurrence of high and thin cirrus clouds during anticyclonic poleward Rossby wave breaking events

Eixmann, Ronald und Peters, Dieter H.W. und Zülicke, Christoph und Gerding, Michael und Dörnbrack, A. (2010) On the upper tropospheric formation and occurrence of high and thin cirrus clouds during anticyclonic poleward Rossby wave breaking events. Tellus A - Dynamic Meteorology and Oceanography, 62, Seiten 228-242. DOI: 10.1111/j.1600-0870.2010.00437.x.

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Offizielle URL: http://www.ingentaconnect.com/content/mksg/tea/2010/00000062/00000003/art00003

Kurzfassung

Ground-based lidar measurements and balloon soundings were employed to examine the dynamical link between anticyclonic Rossby wave breaking and cirrus clouds from 13 to 15 February 2006. For this event, an air mass with low Ertel's potential vorticity appeared over Central Europe. In the tropopause region, this air mass was accompanied with both an area of extreme cold temperatures placed northeastward, and an area of high specific humidity, located southwestward. ECMWF analyses reveal a strong adiabatic northeastward and upward transport of water vapour within the warm conveyor belt on the western side of the ridge over Mecklenburg, Northern Germany. The backscatter lidar at Kühlungsborn (54.1°N, 11.8°E) clearly identified cirrus clouds at between 9 and 11.4 km height. In the tropopause region high-vertical resolution radiosoundings showed layers of subsaturated water vapour over ice but with a relative humidity over ice >80%. Over Northern Germany radiosondes indicated anticyclonically rotating winds in agreement with backward trajectories of ECMWF analyses in the upper troposphere, which were accompanied by a relatively strong increase of the tropopause height on 14 February. Based on ECMWF data the strong link between the large-scale structure, updraft and ice water content was shown

Dokumentart:Zeitschriftenbeitrag
Titel:On the upper tropospheric formation and occurrence of high and thin cirrus clouds during anticyclonic poleward Rossby wave breaking events
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Eixmann, RonaldUniv. Rostock, Ostseebad Kühlungsborn
Peters, Dieter H.W.Univ. Rostock, Ostseebad Kühlungsborn
Zülicke, ChristophUniv. Rostock, Ostseebad Kühlungsborn
Gerding, MichaelUniv. Rostock, Ostseebad Kühlungsborn
Dörnbrack, A.DLR
Datum:2010
Erschienen in:Tellus A - Dynamic Meteorology and Oceanography
Referierte Publikation:Ja
In Open Access:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:62
DOI :10.1111/j.1600-0870.2010.00437.x
Seitenbereich:Seiten 228-242
Status:veröffentlicht
Stichwörter:Cirrus clouds, Lidar, Rossby wave breaking, Lagrangeian trajectories
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 Atmosphären- und Klimaforschung (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Wolkenphysik und Verkehrsmeteorologie
Hinterlegt von: Jana Freund
Hinterlegt am:12 Mai 2010 16:50
Letzte Änderung:12 Dez 2013 20:57

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