Now showing items 1-20 of 48

  • 3D downscaling model for radar-based precipitation fields 

    Llort Pavon, Xavier; Berenguer Ferrer, Marc; Franco Lanao, Maria; Sánchez-Diezma Guijarro, Rafael; Sempere Torres, Daniel (2006-10)
    Article
    Open Access
  • Adding value to the measurements of an X-band radar on Catalonian coast 

    Berenguer Ferrer, Marc; Sempere Torres, Daniel (2012-08)
    Article
    Open Access
    Rainscanner@Barcelona is an experiment assessing the hydrological value of a small X-band radar in urban areas.
  • A fuzzy logic technique for identifying nonprecipitating echoes in radar scans 

    Berenguer Ferrer, Marc; Sempere Torres, Daniel; Corral Alexandri, Carles; Sánchez-Diezma Guijarro, Rafael (American Meteorological Society, 2006-09)
    Article
    Open Access
    Because echoes caused by nonmeteorological targets significantly affect radar scans, contaminated bins must be identified and eliminated before precipitation can be quantitatively estimated from radar measurements. Under ...
  • A methodology for attenuation correction based on the minimization of a cost function 

    Berenguer Ferrer, Marc; Lee, G.; Sempere Torres, Daniel; Zawadzki, Isztar (American Meteorological Society, 2003)
    Conference report
    Open Access
  • Analysis of the radar distance error structure through a simulation approach 

    Llort Pavon, Xavier; Berenguer Ferrer, Marc; Sánchez-Diezma Guijarro, Rafael; Sempere Torres, Daniel (2006)
    Conference report
    Open Access
  • An inverse method to retrieve 3D radar reflectivity composites 

    Roca Sancho, Jordi; Berenguer Ferrer, Marc; Sempere Torres, Daniel (Elsevier, 2014-11)
    Article
    Open Access
    Dense radar networks offer the possibility of getting better Quantitative Precipitation Estimates (QPE) than those obtained with individual radars, as they allow increasing the coverage and improving quality of rainfall ...
  • An operational flood warning system for poorly gauged basins: demonstration in the Guadalhorce basin (Spain) 

    Versini, Pierre Antonie; Berenguer Ferrer, Marc; Corral Alexandri, Carles; Sempere Torres, Daniel (2013-11-01)
    Article
    Restricted access - publisher's policy
    This paper deals with the presentation of a flood warning system (GFWS) developed for the specific characteristics of the Guadalhorce basin (3,200 km2, SE of Spain), which is poorly gauged and often affected by flash and ...
  • Anticipating cascading effects of extreme precipitation with pathway schemes: three case studies from Europe 

    Schauwecker, Simone; Gascón, Estíbaliz; Park, Shinju; Sempere Torres, Daniel (Elsevier, 2019-06)
    Article
    Open Access
    Extreme precipitation events with high local precipitation intensities, heavy snowfall or extensive freezing rain can have devastating impacts on society and economy. Not only is the quantitative forecast of such events ...
  • A radar-based flash flood forecasting for the Llobregat river basin in the Catalonia region (Spain) 

    Quintero Duque, Felipe; Versini, Pierre Antonie; Baltas, Evangelos; Berenguer Ferrer, Marc; Sempere Torres, Daniel (American Meteorological Society, 2011)
    Conference lecture
    Open Access
    In this research paper, a flash flood modeling system implemented in a Mediterranean river basin is presented. Radar precipitation estimation along with hydrological modeling techniques are implemented within the system ...
  • A scenario-incorporating analysis of the propagation of uncertainty to flash flood simulations 

    Quintero Duque, Felipe; Sempere Torres, Daniel; Berenguer Ferrer, Marc; Baltas, Evangelos (Elsevier, 2012-08)
    Article
    Restricted access - publisher's policy
    This study proposes a methodology to analyze the propagation of uncertainty arising from radar rainfall and model parameter estimation to the flow simulations obtained from flash flood modeling. For this purpose an ensemble ...
  • A semi-distributed hydrological model using rainfall estimates by radar. Application to Mediterranean basins 

    Corral Alexandri, Carles; Sempere Torres, Daniel; Revilla Queraltó, Mercè; Berenguer Ferrer, Marc (Elsevier, 2000-09)
    Article
    Restricted access - publisher's policy
  • A variational approach to retrieve 3D radar reflectivity composites 

    Roca Sancho, Jordi; Berenguer Ferrer, Marc; Sempere Torres, Daniel (American Meteorological Society, 2011)
    Conference lecture
    Open Access
    This study proposes an alternative methodology to obtain high-resolution radar reflectivity composites based on a variational approach considering different error sources in an explicit manner. The methodology retrieves ...
  • A water availability prediction system for water management 

    Llort Pavon, Xavier; Rodríguez, Álvaro; Sancho, David; Sánchez-Diezma Guijarro, Rafael; Cangròs Alonso, Arnau; Muñoz Morillo, Esteban; Berenguer Ferrer, Marc; Sempere Torres, Daniel (2015)
    Conference report
    Restricted access - publisher's policy
    In this work we present a Water Availability Prediction System [WAPS] developed and implemented within two EU-FP7 projects: UrbanWater and WatERP. The aim of the WAPS is to provide information for management purposes, and ...
  • Bias-corrected nonparametric correlograms for geostatistical radar-raingauge combination 

    Schiemann, Reinhard; Erdin, Rebekka; Willi, Marco; Frei, Christoph; Berenguer Ferrer, Marc; Sempere Torres, Daniel (2010)
    Conference lecture
    Open Access
    Geostatistical methods have been widely used for quantitative precipitation estimation (QPE) based on the combination of radar and raingauge observations. They are flexible and accurate and allow for radar-raingauge ...
  • Blending of radar and gauge rainfall measurements: a preliminary analysis of the impact of radar errors 

    Sempere Torres, Daniel; Berenguer Ferrer, Marc; Velasco Forero, Carlos Alfonso (International Association of Hydrological Sciences (IAHS), 2011)
    Conference report
    Restricted access - publisher's policy
    Several methodologies have been proposed to combine radar and raingauge measurements with the aim of generating improved quantitative precipitation estimates (QPEs). These methods are based on interpolating point raingauge ...
  • Blending of radar and gauge rainfall measurements: a preliminary analysis of the impact of radar errors 

    Sempere Torres, Daniel; Berenguer Ferrer, Marc; Velasco Forero, Carlos Alfonso (International Association of Hydrological Sciences (IAHS), 2012-08)
    Part of book or chapter of book
    Restricted access - publisher's policy
    Several methodologies have been proposed to combine radar and raingauge measurements with the aim of generating improved quantitative precipitation estimates (QPEs). These methods are based on interpolating point raingauge ...
  • Comparison of TRMM Radar Rainfall Estimates with NOAA Next Generation QPE 

    Amitai, Eyal; Llort Pavon, Xavier; Sempere Torres, Daniel (2009-01)
    Article
    Restricted access - publisher's policy
    Rainfall rate fields based on TRMM spaceborne radar observations are compared to those based on the new NOAA Next-Generation Quantitative Precipitation Estimation (QPE) high-resolution national mosaic product (Q2). These ...
  • Comparison of two early warning systems for regional flash flood hazard forecasting 

    Corral Alexandri, Carles; Berenguer Ferrer, Marc; Sempere Torres, Daniel; Poletti, Laura; Silvestro, Francesco; Rebora, Nicola (Elsevier, 2019-05)
    Article
    Restricted access - publisher's policy
    The anticipation of flash flood events is crucial to issue warnings to mitigate their impact. This work presents a comparison of two early warning systems for real-time flash flood hazard forecasting at regional scale. The ...
  • Consecuencias hidrológicas de los incendios forestales 

    Sempere Torres, Daniel; Urbano-Ispiuza, Álvaro; Lavabre, Jacques; Dolz Ripollès, Josep (1994)
    Article
    Open Access
    La alteración del terreno y la destrucción de la vegetación debida a los incendios provoca cambios importantes en las características hidrológicas de las cuencas afectadas. El presente estudio aborda una cuantificación ...
  • Debris-flow early warning system at regional scale using weather radar and susceptibility mapping 

    Palau Berastegui, Rosa Maria; Hurlimann Ziegler, Marcel; Berenguer Ferrer, Marc; Sempere Torres, Daniel (Association of Environmental & Engineering Geologists (AEG), 2019)
    Conference lecture
    Open Access
    Risk mitigation for debris flows at regional scale is a challenge. Early warning systems are helpful in depicting the time and the location of future debris flows so that emergency responders can act in advance before the ...