Ara es mostren els items 1-16 de 16

  • Alternative processing for micro rain radar (MRR) observations 

    Garcia Benadí, Albert; Bech, Joan; González Herrero, Sergi; Río Fernandez, Joaquín del (2018)
    Comunicació de congrés
    Accés obert
    The most common function of weather radars is to provide a description of the precipitation field, typically in four dimensions: temporal evolution of a 3D field, including characteristics of precipitation and rainfall ...
  • A mediterranean nocturnal heavy rainfall and tornadic event. Part II: total lightning analysis 

    Pineda Rüegg, Nicolau; Bech, Joan; Rigo, Tomeu; Montañá Puig, Juan (2010-11-09)
    Article
    Accés restringit per política de l'editorial
    On the night from 1st to 2nd of November 2008, a multi-cell storm coming from the Mediterranean produced severe weather in the coastal area of Catalonia (NE Spain): groundlevel strong damaging wind gusts, a tornado – ...
  • A mediterranean nocturnal heavy rainfall and tornadic event. Part I: overview, damage survey and radar analysis 

    Van der Velde, Oscar Arnoud; Bech, Joan; Pineda Rüegg, Nicolau; Rigo, Tomeu; Aran, Montserrat; Amaró, Jésica; Gayà, M; Arús, J; Montañá Puig, Juan (2011-01-03)
    Article
    Accés restringit per política de l'editorial
    This study presents an analysis of a severe weather case that took place during the early morning of the 2nd of November 2008, when intense convective activity associated with a rapidly evolving low pressure system affected ...
  • Analysis of lightning associated with a sprite displaced from its parent positive cloud to ground lightning flash 

    Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Soula, Serge; Neubert, Torsten; Bech, Joan; Mika, Agnes (2007)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
  • Analysis of the electric field changes due to lightning during Catalonia thunderstorms in Summer 2003 

    Montañá Puig, Juan; Bergas Jané, Joan Gabriel; Pineda Rüegg, Nicolau; Bech, Joan; Rigo, Tomeu; Illa Arnau, Àngel; Hermoso Alameda, Blas (2004)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
    Electric fields related to lightning close to storms were measured in the Catalonian region (NE of Spain) in summer 2003. The aim of this campaign was the data collection to study the total electrical charge involved in ...
  • An observational description of a tornadic severe weather event 

    Bech, Joan; Pineda Rüegg, Nicolau; Aran, M; Amaro, J; Gayà, M; Arús, J; Montañá Puig, Juan; Van der Velde, Oscar Arnoud (2009)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
    This study presents an analysis of a severe weather case study that took place during the early morning of the 2nd of November 2008, when intense convective activity associated to a rapidly evolving low pressure system ...
  • A study of thunderstorm characteristics using lightning and weather radar observations 

    Pineda Rüegg, Nicolau; Bech, Joan; Rigo, Tomeu; Montañá Puig, Juan (2004)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
    The main objective of this study was to give insight into the temporal and spatial aspects of lightning activity during the life cycle of diverse types of thunderstorms, and to examine the possible relationships with ...
  • Estudi de l'episodi tornàdic nocturn amb precipitacions intenses del 2 de novembre de 2008 a Catalunya 

    Van der Velde, Oscar Arnoud; Bech, Joan; Pineda Rüegg, Nicolau; Rigo, Tomeu; Aran, Montserrat; Amaró, Jésica; Gayà, M; Arús, J; Montañá Puig, Juan (2010)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
    Aquest estudi presenta una anàlisi d’un episodi de temps sever que va tenir lloc la matinada del 2 de novembre de 2008, quan la costa sud de Catalunya va estar afectada per una intensa depressió que va dur associada ...
  • Meteorological aspects of winter upward lightning from an instrumented tower in the Pyrenees 

    Pineda, Nicolau; Montanya, Joan; Romero Durán, David; Bech, Joan; González Lopez, Sergio (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Text en actes de congrés
    Accés obert
    A case study of winter upward lightning is analysed. In particular, the study focuses on the meteorological aspects that favoured the triggering of upward lightning by an instrumented tower in the eastern Pyrenees. Starting ...
  • Observations of Western Mediterranean TLE: LS8000 intracloud lightning and high-speed video 

    Van der Velde, Oscar Arnoud; Montañá Puig, Juan; Romero Durán, David; Soula, Serge; Pineda Rüegg, Nicolau; Bech, Joan; Reglero, V. (2009)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
    Transient luminous events (TLE) are electrical phenomena occurring between the ionosphere and the tops of thunderstorms. First discovered in 1989, the family of TLE now consists of different members: sprites, sprite ...
  • Predictability assessment of nowcasts in high-impact heavy precipitation events 

    Bech, Joan; Berenguer Ferrer, Marc (2012)
    Comunicació de congrés
    Accés obert
  • Skill in nowcasting high-impact heavy precipitation events 

    Bech, Joan; Berenguer Ferrer, Marc (2014)
    Comunicació de congrés
    Accés obert
    The objective of this study is to assess the skill of a precipitation nowcasting (very short range forecasting) system, with particular emphasis on hig-impact Heavy Precipitation Events (HPE). A threshold amount of 20 mm ...
  • Study of the total lightning activity in a hailstorm 

    Montañá Puig, Juan; Soula, Serge; Pineda, Nicolau; Van der Velde, Oscar Arnoud; Clapers, Pere; Solà de las Fuentes, Glòria; Bech, Joan; Romero Durán, David (2009)
    Article
    Accés restringit per decisió de l'autor
    A thunderstorm that developed over northeastern Spain on 16 June 2006 is analyzed. This severe thunderstorm produced hailstones as large as 40 mm and had a lifetime of 3 h and 30 min. Radar cross-sections show strong ...
  • Study of the total lightning activity in a hailstorm 

    Montañá Puig, Juan; Soula, Serge; Pineda Rüegg, Nicolau; Van der Velde, Oscar Arnoud; Clapers, Pere; Solà de las Fuentes, Glòria; Bech, Joan; Romero Durán, David (2007)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
    A thunderstorm which developed in North-Eastern region of Spain on 16th June, 2006 is analyzed. This thunderstorm could be severe because it produced hailstones larger than 19 mm. The cell life time was 3h 30 minutes. ...
  • Total lightning analysis of a tornadic severe weather event 

    Pineda Rüegg, Nicolau; Bech, Joan; Rigo, Tomeu; Montañá Puig, Juan; Van der Velde, Oscar Arnoud (2009)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
    This study presents an analysis of total lightning and radar data of a severe weather event that took place in the early morning of 2nd November 2008 in Catalonia (NE Spain). A general overview of the synoptic framework ...
  • Vertically resolved precipitation intensity retrieved through a synergy between the ground-based NASA MPLNET lidar network measurements, surface disdrometer datasets and an analytical model solution 

    Lolli, S.; D'Adderio, L.P.; Campbell, J.R.; Sicard, Michaël; Welton, E.J.; Binci, A.; Rea, Alessandro; Tokay, A.; Comerón Tejero, Adolfo; Barragán Cuesta, Rubén; Baldasano Recio, José María; González, Sergio; Bech, Joan; Afflitto, Nicola; Lewis, J.R.; Madonna, Fabio (Multidisciplinary Digital Publishing Institute (MDPI), 2018-07-01)
    Article
    Accés obert
    In this paper, we illustrate a new, simple and complementary ground-based methodology to retrieve the vertically resolved atmospheric precipitation intensity through a synergy between measurements from the National Aeronautics ...