Exploració per autor "Sempere Torres, Daniel"
Ara es mostren els items 31-50 de 58
-
Flash flood forecasting based on rainfall thresholds
Alfieri, Lorenzo; Berenguer Ferrer, Marc; Knechtl, Valentin; Liechti, Katharina; Sempere Torres, Daniel; Zappa, M (Springer, 2017)
Capítol de llibre
Accés restringit per política de l'editorial -
FloodAlert: a simplified radar-based EWS for urban flood warning
Llort Pavon, Xavier; Sánchez-Diezma Guijarro, Rafael; Rodríguez, Álvaro; Sancho, David; Berenguer Ferrer, Marc; Sempere Torres, Daniel (2014)
Text en actes de congrés
Accés obertIn this work we present FloodAlert, a simplified flood Early Warning System [EWS] based on the use of radar observations and radar nowcasting to issue local flood warnings. It is a web-based platform and it is complemented ... -
Geostatistical radar-raingauge combination with nonparametric correlograms: methodological considerations and application in Switzerland
Schiemann, Reinhard; Erdin, Rebecca; Willi, Marco; Frei, Christoph; Berenguer Ferrer, Marc; Sempere Torres, Daniel (2011-05-19)
Article
Accés obertModelling spatial covariance is an essential part of all geostatistical methods. Traditionally, parametric semivariogram models are fit from available data. More recently, it has been suggested to use nonparametric ... -
Gestió de riscos torrencials: el projecte IMPRINTS
Berenguer Ferrer, Marc; Sempere Torres, Daniel (2013)
Text en actes de congrés
Accés obertEn aquest article s’hi presenten els elements necessaris per la generació d’alertes d’inundacions torrencials en temps real, prenent com a exemple l’eina desenvolupada en el Projecte del 7è Programa Marc “IMproving ... -
Hydrological evaluation of a nowcasting technique applied to flood forecasting
Berenguer Ferrer, Marc; Dàvila, J.; Corral Alexandri, Carles; Sempere Torres, Daniel; Seed, Alan (American Meteorological Society, 2003)
Text en actes de congrés
Accés obert -
Hydrological validation of a radar-based nowcasting technique
Berenguer Ferrer, Marc; Corral Alexandri, Carles; Sánchez-Diezma Guijarro, Rafael; Sempere Torres, Daniel (2005-08)
Article
Accés obertNowcasting precipitation is a key element in the anticipation of floods in warning systems. In this framework, weather radars are very useful because of the high resolution of their measurements both in time and space. ... -
Identification of clutter echoes using a fuzzy logic technique
Berenguer Ferrer, Marc; Sempere Torres, Daniel; Sánchez-Diezma Guijarro, Rafael; Pascual Berghaenel, Ramon (2005)
Comunicació de congrés
Accés obert -
Implementation of hydrometeorological thresholds for regional landslide warning in Catalonia (NE Spain)
Palau Berastegui, Rosa Maria; Berenguer Ferrer, Marc; Hurlimann Ziegler, Marcel; Sempere Torres, Daniel (Springer, 2023-10)
Article
Accés obertSoil moisture plays a vital role in slope stability. As water infiltrates into the soil, shear strength decreases eventually leading to failure. However, most of the existing regional-scale landslide early warning systems ... -
Improvements on flow forecasting using precipitation nowcasting based in radar advection techniques: assessment of predictability and uncertainty propagation
Sempere Torres, Daniel; Berenguer Ferrer, Marc; Corral Alexandri, Carles; Sánchez-Diezma Guijarro, Rafael (2005-10)
Text en actes de congrés
Accés restringit per política de l'editorial -
Improving radar rainfall measurement stability using mountain returns in real time.
Sempere Torres, Daniel; Sánchez-Diezma Guijarro, Rafael; Berenguer Ferrer, Marc; Pascual Berghaenel, Ramon; Zawadzki, Isztar (American Meteorological Society, 2003)
Text en actes de congrés
Accés obert -
Improving risk management for flash floods and debris flow events
Uijlenhoet, Remko; Sempere Torres, Daniel; Velasco Montes, David; Berenguer Ferrer, Marc; Bateman Pinzón, Allen; Germann, Urs; Thielen, Jutta; Beven, K.; Zappa, Massimiliano; Demarchi, M.; Bertoli, M.; Gaechter, M.; Velasco, E.; Wittwer, C.; Sánchez-Diezma Guijarro, Rafael; Vilaclara, E.; Pegram, Geoffrey; Papa, M.; Escaler, I.; Lombardi, G.; Santiago, A.; Zawadzki, Isztar (Royal Society of Chemistry, 2010)
Capítol de llibre
Accés restringit per política de l'editorial -
Influence of the mapping unit for regional landslide early warning systems: comparison between pixels and polygons in Catalonia (NE Spain)
Palau Berastegui, Rosa Maria; Hurlimann Ziegler, Marcel; Berenguer Ferrer, Marc; Sempere Torres, Daniel (2020-09)
Article
Accés obertThis work presents a prototype landslide early warning system (LEWS) adapted to real-time performance over the region of Catalonia (NE Spain). The system uses high-resolution rainfall information obtained from weather radar ... -
Intercomparison of attenuation correction algorithms for single-polarized X-band radars
Lengfeld, Katharina; Berenguer Ferrer, Marc; Sempere Torres, Daniel (2018-03)
Article
Accés obertAttenuation due to liquid water is one of the largest uncertainties in radar observations. The effects of attenuation are generally inversely proportional to the wavelength, i.e. observations from X-band radars are more ... -
Long-term analysis of gauge-adjusted radar rainfall accumulations at European scale
Park, Shinju; Berenguer Ferrer, Marc; Sempere Torres, Daniel (Elsevier, 2019-06)
Article
Accés obertMonitoring continental precipitation over Europe with high resolution (2 km, 15 min) has been possible since the operational production of the OPERA composites from the European weather radar networks. The OPERA data are ... -
Modeling the uncertainty associated to radar-based nowcasting techniques. Impact in flow simulation
Berenguer Ferrer, Marc; Sempere Torres, Daniel; Sánchez-Diezma Guijarro, Rafael; Pegram, Geoffrey; Zawadzki, Isztar; Seed, Alan (2006)
Text en actes de congrés
Accés obert -
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'editorialLa 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'editorialFor 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 obertThis 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 obertFlash 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 obertAn 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 ...