Ara es mostren els items 46-58 de 58

    • Predicción probabilística de hidrogramas de avenida y de volúmenes de aportación a embalses 

      Rodríguez Ramos, Álvaro; Corral Alexandri, Carles; Barbero Lartigau, Carlos; Llort Pavon, Xavier; Berenguer Ferrer, Marc; Sempere Torres, Daniel (Comité Nacional Español de Grandes Presas (SPANCOLD), 2021)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      La Agència Catalana de l’Aigua (ACA) está promoviendo el desarrollo de una herramienta para disponer de predicciones probabilísticas de caudales, en estaciones de aforo, y de evolución de volúmenes, en embalses. Esta ...
    • Radar rainfall: separating signal and noise fields to generate meaningful ensembles 

      Pegram, Geoffrey; Llort Pavon, Xavier; Sempere Torres, Daniel (2011-05)
      Article
      Accés restringit per política de l'editorial
      For the purpose of generating meaningful stochastic ensembles of radar estimates of rainfall, a relatively simple and objective method of separating a radar rainfall image into signal and noise is described. An alternative ...
    • Radar-based rainfall nowcasting at European scale: long-term evaluation and performance assessment 

      Berenguer Ferrer, Marc; Sempere Torres, Daniel (2013)
      Text en actes de congrés
      Accés obert
      This work studies the performance of CRAHI's algorithm for rainfall nowcasting at European scale using the mosaics produced within the EUMETNET project OPERA (with a resolution of 4 km and 15 minutes) in the framework of ...
    • ReAFFIRM: Real-time Assessment of Flash Flood Impacts: a Regional high-resolution Method 

      Ritter, Josias Manuel Gisbert; Berenguer Ferrer, Marc; Corral Alexandri, Carles; Park, Shinju; Sempere Torres, Daniel (Elsevier, 2020-03)
      Article
      Accés obert
      Flash floods evolve rapidly in time, which poses particular challenges to emergency managers. One way to support decision-making is to complement models that estimate the flash flood hazard (e.g. discharge or return period) ...
    • REAL - Ensemble radar precipitation estimation for hydrology in a mountainous region 

      Germann, Urs; Berenguer Ferrer, Marc; Sempere Torres, Daniel; Zappa, Massimiliano (2009-02-06)
      Article
      Accés obert
      An elegant solution to characterise the residual errors in radar precipitation estimates is to generate an ensemble of precipitation fields. The paper proposes a radar ensemble generator designed for usage in the Alps using ...
    • Real-time assessment of flash flood impacts at pan-European scale: the ReAFFINE method 

      Ritter, Josias Manuel Gisbert; Berenguer Ferrer, Marc; Park, Shinju; Sempere Torres, Daniel (Elsevier, 2021-12)
      Article
      Accés obert
      The development of early warning systems (EWSs) is a key element for the effective mitigation of flash flood impacts. Emergency managers and other end-users increasingly recognise the benefit of tools that automatically ...
    • SBMcast - An ensemble nowcasting technique to assess the uncertainty in rainfall forecasts by Lagrangian extrapolation 

      Berenguer Ferrer, Marc; Sempere Torres, Daniel; Pegram, Geoffrey (Elsevier Science Direct, 2011-07-11)
      Article
      Accés restringit per política de l'editorial
      Deterministic nowcasting based on Lagrangian extrapolation of recent radar observations is a technique used in many operational and research centers and has proven to be useful at extending the anticipation with which flows ...
    • Sistema de alerta para procesos torrenciales a escala regional combinando mapas de susceptibilidad y datos del radar meteorológico 

      Hurlimann Ziegler, Marcel; Berenguer Ferrer, Marc; Palau, Rosa M.; Sempere Torres, Daniel (International Centre for Numerical Methods in Engineering (CIMNE), 2017)
      Text en actes de congrés
      Accés obert
      Los procesos torrenciales como las corrientes de derrubios o flujos hiperconcentrados causan frecuentemente daños importantes e incluso muertos en zonas montañosas. Para afrontar este peligro, los sistemas de alerta son ...
    • Spatiotemporal precipitation estimation from rain gauges and meteorological radar using geostatistics 

      Cassiraga, Eduardo; Gómez Hernández, J. Jaime; Berenguer Ferrer, Marc; Sempere Torres, Daniel; Rodrigo Ilarri, Javier (2021-05)
      Article
      Accés obert
      Automatic interpolation of precipitation maps combining rain gauge and radar data has been done in the past but considering only the data collected at a given time interval. Since radar and rain gauge data are collected ...
    • The great Colorado flood of September 2013 

      Gochis, David; Rutledge, Steven A.; Sempere Torres, Daniel; Steiner, Matthias; Chandrasekar, V. (2015-09-01)
      Article
      Accés obert
      During the second week of September 2013, a seasonally uncharacteristic weather pattern stalled over the Rocky Mountain Front Range region of northern Colorado bringing with it copious amounts of moisture from the Gulf of ...
    • The use of NWP forecasts to improve an ensemble nowcasting technique 

      Buil Martínez, Alejandro; Berenguer Ferrer, Marc; Sempere Torres, Daniel (2014)
      Comunicació de congrés
      Accés obert
      Quantitative Precipitation Nowcasting (QPN) is one of the main applications of radar observations. On one hand, one of the most used nowcasting algorithms is Lagrangian extrapolation. It shows skill in specifying the timing ...
    • Validation of a nowcasting technique from a hydrological perspective 

      Berenguer Ferrer, Marc; Corral Alexandri, Carles; Sempere Torres, Daniel; Seed, A W (2004)
      Text en actes de congrés
      Accés obert
      Nowcasting precipitation is a key point to anticipate risks in flood warning systems. In this environment, weather radars are very useful because of the high resolution of their measurements both in time and space. The ...
    • WiBasin: basin management through an integrated platform 

      Llort Pavon, Xavier; Sánchez-Diezma Guijarro, Rafael; Sancho, David; Rodríguez, Álvaro; Berenguer Ferrer, Marc; Sempere Torres, Daniel (2014)
      Text en actes de congrés
      Accés obert
      In this work we present WiBasin, a cloud platform for basin and dam management. It includes different sources of precipitation (both observed and forecasted), integration over the catchment domain (to provide an aggregated ...