Journal cover Journal topic
Advances in Geosciences An open-access journal for refereed proceedings and special publications
Journal topic

Journal metrics

Journal metrics

  • CiteScore value: 1.68 CiteScore
    1.68
  • SNIP value: 0.913 SNIP 0.913
  • SJR value: 0.651 SJR 0.651
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 34 Scimago H
    index 34
  • h5-index value: 13 h5-index 13
Volume 7
Adv. Geosci., 7, 215-222, 2006
https://doi.org/10.5194/adgeo-7-215-2006
© Author(s) 2006. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
Adv. Geosci., 7, 215-222, 2006
https://doi.org/10.5194/adgeo-7-215-2006
© Author(s) 2006. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

  08 Mar 2006

08 Mar 2006

Study of 11 September 2004 hailstorm event using radar identification of 2-D systems and 3-D cells

M. Ceperuelo1, M. C. Llasat1, L. López2, E. García-Ortega2, and J. L. Sánchez2 M. Ceperuelo et al.
  • 1Department of Astronomy & Meteorology, Faculty of Physics, University of Barcelona, Spain
  • 2Laboratory for Atmofpheric Physics, University of León, Spain

Abstract. The most important hail event recorded in the region of the Ebro Valley (NE Spain) in 2004 was the 11 September episode. Large hailstones (some of them with a diameter of over 30 mm) caused important damages in agriculture and properties. The hail event affected an area of 3848 ha and was caused by several multicellular systems. The aim of this paper is the analysis of the associated convective structures using the meteorological radar as well as the MM5 mesoscale model, thermodynamic data and a hailpad network. To achieve this end, the new hailstorm analysis tool RHAP (Rainfall events and Hailstorms Analysis Program) has been applied. It identifies tracks and characterises precipitation systems and convective cells, taking into account 2-D and 3-D structures. The event has also been studied with the TITAN software (Thunderstorm Identification, Tracking, Analysis and Nowcasting) in an attempt to compare both methods. Results show that the episode had a strong convective activity with CAPE values over 4000 J/kg and with hail-forming cells characterised by VIL (Vertical Integrated Liguid) exceeding 40 kg/m2, VILD (VIL density) over 4 g/m3, HP (Hail Probability) of 100% and SHP (Severe Hail Probability) of over 75%. The hail cells evolved into multicellular systems that lasted between 70 and 90 min. Finally, the comparison of RHAP and TITAN has shown significant correlations between methods.

Download
Citation
Share