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Upper-Tropospheric features and the Alps: An overview

Hoinka, K.P. and Davies, H.C. (2007) Upper-Tropospheric features and the Alps: An overview. Quarterly Journal of the Royal Meteorological Society, 133, pp. 847-865. DOI: 10.1002/qj.69.

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Abstract

One focus of the Mesoscale Alpine Programme (MAP) was the study of upper-tropospheric potential vorticity (PV) anomalies that take the form of narrow meridionally elongated troughs termed ‘PV streamers’. A systematic effort was undertaken within the MAP framework to: establish a streamer climatology, develop appropriate instrumentation and undertake a measurement programme to better ascertain their structure, study both their intrinsic dynamics and their modification by the Alps, and perform model experiments to examine their significance for numerical weather prediction. Here an overview is given of the progress made toward achieving these objectives. In particular it is shown that PV streamers translating toward the Alpine region are dynamically distinctive and constitute an identifiable precursor of and contribute seminally to heavy precipitation events on the south side of the Alps and possess rich mesoscale sub-structures that can be examined with novel water vapour absorption lidar instrumentation. It is also shown that the accurate representation of a streamer might well be a critical prerequisite for accurate quantitative prediction of mesoscale precipitation. Copyright  2007 Royal Meteorological Society

Document Type:Article
Title:Upper-Tropospheric features and the Alps: An overview
Authors:
AuthorsInstitution or Email of Authors
Hoinka, K.P.UNSPECIFIED
Davies, H.C.ETH, Zürich, CH
Date:2007
Journal or Publication Title:Quarterly Journal of the Royal Meteorological Society
Volume:133
DOI:10.1002/qj.69
Page Range:pp. 847-865
Status:Published
Keywords:PV-Streamer, Alpen, MAP
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 > Cloud Physics and Traffic Meteorology
Deposited By: Jana Freund
Deposited On:16 Jul 2007
Last Modified:12 Dec 2013 20:25

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