Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.11765/11663
The environments of significant convective events in the western Mediterranean
Title: The environments of significant convective events in the western Mediterranean
Authors: Tudurí, ElisaAutor AEMETRamis, Clemente
Keywords: Convective events; Environmental characteristics; Radiosonde
Issue Date: 1997
Publisher: American Meteorological Society
Citation: Weather and Forecasting. 1997, 12, p. 294–306
Publisher version: https://dx.doi.org/10.1175/1520-0434(1997)012<0294:TEOSCE>2.0.CO;2
Abstract: The environmental characteristics associated with 313 significant convective events in the western Mediterranean are investigated using radiosonde ascents made in Mallorca (Spain). The events are separated into five groups, based on the observed event (hail, heavy rain, ‘‘dry’’ storms, storms with heavy rain, and tornadoes). Classic stability indices, as well as values of convective available potential energy and helicity, are considered for each group. These traditional convective indices appear not to provide good guidance for discriminating environments associated with each group of events. In order to classify the environments, each sounding is defined by means of 34 variables that describe the thermal and humidity vertical structure, instability, precipitable water, and helicity. A cluster analysis shows that four different vertical structures appear. Each kind of event shows preference for the environments defined by a cluster. A simple method is presented for sounding classification using the four categories obtained from the cluster analysis. The method looks for the best correlation between a particular sounding and those defined by each cluster.
Sponsorship : This work has been partially sponsored by the EC under Contract EV5V-CT94-0442 and CICYT Grants AMB95-1136-CE.
URI: http://hdl.handle.net/20.500.11765/11663
ISSN: 0882-8156
1520-0434
Appears in Collections:Artículos científicos 1995-1999


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