Supercell convective environments in Spain based on ERA5: hail and non-hail differences
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Published:2022-09-05
Issue:3
Volume:3
Page:1021-1036
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ISSN:2698-4016
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Container-title:Weather and Climate Dynamics
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language:en
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Short-container-title:Weather Clim. Dynam.
Author:
Calvo-Sancho CarlosORCID, Díaz-Fernández JavierORCID, Martín Yago, Bolgiani PedroORCID, Sastre MarianoORCID, González-Alemán Juan Jesús, Santos-Muñoz Daniel, Farrán José Ignacio, Martín María Luisa
Abstract
Abstract. Severe convective storms, in particular supercells, are
occasionally responsible for a large number of property losses and damage
in Spain. This paper aims to study the synoptic configurations and
pre-convective environments in a dataset of 262 supercells during 2011–2020 in Spain. The events are grouped into supercells with hail (diameter larger than 5 cm) and without hail and the results are compared. ERA5 reanalysis is used to study the synoptic configurations and proximity atmospheric profiles
related to the supercell events at the initial time. In addition,
temperature, convective available potential energy, convective inhibition,
lifting condensation level, level of free convection, height of freezing
level, wind shear and storm-relative helicity are obtained for each event.
Results show that supercells are more frequent on the Mediterranean coast
during the warm season. Some of the variables analyzed present statistically
significant differences between hail and non-hail events. In particular,
supercells with hail are characterized by higher median values of
most-unstable convective available potential energy than supercells without
hail.
Funder
Ministerio de Ciencia e Innovación H2020 Marie Skłodowska-Curie Actions European Centre for Medium-Range Weather Forecasts
Publisher
Copernicus GmbH
Subject
General Mathematics
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