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Ara es mostren els items 125-144 de 219

    • Lidar intercomparisons on algorithm and system level in the frame of EARLINET. 

      Matthias, Volker; Böckmann, C.; Linné, Holger; Freudenthaler, Volker; Pappalardo, Gelsomina; Bösenberg, Jens; Amiridis, Vassilis; Amodeo, Aldo; Ansmann, Albert; Balis, Dimitris; Boselli, Antonella; Comerón Tejero, Adolfo; Rocadenbosch Burillo, Francisco (2002-05)
      Article
      Accés obert
      EARLINET (European Aerosol Research Lidar Network to Establish an Aerosol Climatology) is a joint project of 19 lidar groups operating aerosol lidar systems at 21 stations over a large part of Europe, plus one group ...

    • Lidar inversion of atmospheric backscatter and extinction-to-backscatter ratios by use of a Kalman filter 

      Rocadenbosch Burillo, Francisco; Soriano Ortiz, Cecilia; Comerón Tejero, Adolfo; Baldasano Recio, José María (1999-03)
      Article
      Accés restringit per política de l'editorial
      A first inversion of the backscatter profile and extinction-to-backscatter ratio from pulsed elastic-backscatter lidar returns is treated by means of an extended Kalman filter (EKF). The EKF approach enables one to overcome ...

    • Lidar inversion of atmospheric backscatter and extinction-to-backscatter ratios by use of a Kalman filter 

      Rocadenbosch Burillo, Francisco; Soriano Ortiz, Cecilia; Comerón Tejero, Adolfo; Baldasano Recio, José María (OPTICAL SOC AMER, 1999-03-01)
      Article
      Accés obert
      A first inversion of the backscatter profile and extinction-to-backscatter ratio from pulsed elastic-backscatter lidar returns is treated by means of an extended Kalman filter (EKF). The EKF approach enables one to overcome ...

    • Lidar measurements of wind velocity fields 

      Comerón Tejero, Adolfo; Muñoz Porcar, Constantino; Rocadenbosch Burillo, Francisco; Rodríguez Gómez, Alejandro Antonio; Sicard, Michaël; Tomás Martínez, Sergio (Editura INOE, 2010)
      Capítol de llibre
      Accés restringit per política de l'editorial

    • Lidar with SiPM: some capabilities and limitations in real environment 

      Agishev, Ravil; Comerón Tejero, Adolfo; Bach, Jordi; Rodríguez Gómez, Alejandro Antonio; Sicard, Michaël; Riu Gras, Jordi; Royo Royo, Santiago (2013-07)
      Article
      Accés restringit per política de l'editorial
      The purpose of the work is to demonstrate real capabilities and to give examples of SiPMs application in lidar technology in both analog and photon counting modes. The experimental research within an operating lidar complex ...

    • Long-range transport of Saharan dust to northern Europe: The 11-16 October 2001 outbreak observed with EARLINET 

      Ansmann, Albert; Bösenberg, Jens; Chaikovsky, Anatoli; Comerón Tejero, Adolfo; Eckhardt, Sabine; Eixmann, Ronald; Freudenthaler, Volker; Ginoux, Paul; Komguem, Leonce; Linné, Holger; López Márquez, Miguel Ángel; Matthias, Volker; Mattis, Ina; Mitev, Valentin (AMER GEOPHYSICAL UNION, 2003-12-31)
      Article
      Accés obert
      The spread of mineral particles over southwestern, western, and central Europe resulting from a strong Saharan dust outbreak in October 2001 was observed at 10 stations of the European Aerosol Research Lidar Network ...

    • Measurement report: Characterization of the vertical distribution of airborne Pinus pollen in the atmosphere with lidar-derived profiles: a modeling case study in the region of Barcelona, NE Spain 

      Sicard, Michaël; Jorba Casellas, Oriol; Ho Zhang, Jiang Ji; Izquierdo Miguel, Rebeca; De Linares, Concepción; Alarcón Jordán, Marta; Comerón Tejero, Adolfo; Belmonte Soler, Jordina (European Geosciences Union (EGU), 2021-12-06)
      Article
      Accés obert
      This paper investigates the mechanisms involved in the dispersion, structure, and mixing in the vertical column of atmospheric pollen. The methodology used employs observations of pollen concentration obtained from Hirst ...

    • Measurement report: Spectral and statistical analysis of aerosol hygroscopic growth from multi-wavelength lidar measurements in Barcelona, Spain 

      Sicard, Michaël; Oliveira, Daniel Camilo Fortunato dos Santos; Muñoz Porcar, Constantino; Gil Díaz, Cristina; Comerón Tejero, Adolfo; Rodríguez Gómez, Alejandro Antonio; Dios Otín, Víctor Federico (European Geosciences Union (EGU), 2022-06-14)
      Article
      Accés obert
      This paper presents the estimation of the hygroscopic growth parameter of atmospheric aerosols retrieved with a multi-wavelength lidar, a micro-pulse lidar (MPL) and daily radiosoundings in the coastal region ofBarcelona, ...

    • Medida de parámetros S de transistores chip hasta 40 ghz utilizando calibración TRL 

      Pradell i Cara, Lluís; Sabater, C.; Artal, E.; Comerón Tejero, Adolfo; Bará Temes, Francisco Javier; Corbella Sanahuja, Ignasi; Fortuny, J. (1990)
      Text en actes de congrés
      Accés obert

    • Medida del perfil de velocidad de un líquido en un tubo de sección circular mediante un radar láser 

      García Vizcaíno, David; Recolons Martos, Jaume; Dios Otín, Víctor Federico; Comerón Tejero, Adolfo (2007-09)
      Text en actes de congrés
      Accés obert
      In this paper we present the measures of the profile or velocity gradient of a liquid (water) across a circular section pipe in laminar state, by means of a two-dimension laser radar system (2D-LDA) designed by the ...

    • Mejora del acoplamiento entre un diodo MIM y un haz láser 

      Comerón Tejero, Adolfo; Bolomey, Jean Charles (Universidad de Cantabria, 1982)
      Text en actes de congrés
      Accés obert
      The electromagnetic coupling between an electromagnetic beam and a wire structure is studied. Several ways of improving the coupling are described. These techniques can be used to increase the power coupled to MIM diodes ...

    • Mezclador equilibrado a 30 GHz para la recepción de la baliza B2 del satélite Olympus 

      Artal, Eduardo; Comerón Tejero, Adolfo (Universidad Politécnica de Madrid (UPM), 1988)
      Text en actes de congrés
      Accés obert
      The design and performance of a 30-GHz mixer is presented. The mixer is to be used in the RF front end of an earth station for the OPEX experiment with the propagation beacons of the ESA's Olympus satellite. It uses a ...

    • Mezclador subarmónico sobre T.E.C. MESFET de AsGa 

      Elias Fusté, Antoni; de los Reyes, Elías; Comerón Tejero, Adolfo (Universidad de Sevilla, 1984)
      Text en actes de congrés
      Accés obert
      It is showed that it is possible to obtain conversion gain in a subharmonically pumped mixer using a GaAs MESFET. The input and output load conditions are presented. The dynamic range and the converted band are strongly ...

    • Método para la determinación de los parámetros de ruido a partir de medidas precisas de factor de ruido y parámetros S 

      Borràs, S.; Pradell i Cara, Lluís; Comerón Tejero, Adolfo; Artal, E. (1990)
      Text en actes de congrés
      Accés obert

    • Modelizacion y utilizacion de spd para sintesis de muy bajo ruido banda L 

      Rocadenbosch Burillo, Francisco; Bará Temes, Francisco Javier; Comerón Tejero, Adolfo (1991)
      Text en actes de congrés
      Accés obert
      A state of the art low noise cryogenic amplifier for L-band radio astronomy applications is presented. It was implemented in hybrid MIC technology using commercially available chip HEMT transistors. The average noise ...

    • Modelización y utilización de detectores de fase muestreados para síntesis de frecuencias de microondas 

      Rocadenbosch Burillo, Francisco; Bará Temes, Francisco Javier; Comerón Tejero, Adolfo (1991)
      Text en actes de congrés
      Accés obert
      The internal structure of a Sampling Phase Detector (SPD) may be understood as a high order impulse generador (IG) composed by a step recovery diode (SRD) that properly pumps a balanced mixer through coupling capacitors. ...

    • Modelling of pollen dispersion in the atmosphere: evaluation with a continuous 1ß+1d lidar 

      Sicard, Michaël; Izquierdo, Rebeca; Jorba i Casellas, Oriol; Alarcón Jordán, Marta; Belmonte Soler, Jordina; Comerón Tejero, Adolfo; De Linares, Concepción; Baldasano Recio, José María (2017)
      Text en actes de congrés
      Accés obert
      Pollen allergenicity plays an important role on human health and wellness. It is thus of large public interest to increase our knowledge of pollen grain behavior in the atmosphere (source, emission, processes involved ...

    • Monitoring of the Eyjafjalla volcanic plume at four lidar stations over the Iberian Peninsula: 6 to 8 May 2010 

      Silva, A.M.; Wagner, F.; Rocadenbosch Burillo, Francisco; Pujadas, Manuel; Comerón Tejero, Adolfo; Alados Arboledas, Lucas; Reba Mohd Nadzri, Md; Guerrero Rascado, Juan Luis; Sicard, Michaël; Molero, Francisco; Navas Guzmán, Francisco; Preissler, J.; Kumar, Dhiraj; Bravo Aranda, J.A.; Tomás Martínez, Sergio (2010)
      Comunicació de congrés
      Accés obert
      Lidar measurements were performed in the framework of the EARLINET and SPALINET networks during the eruption of Eyjafjalla volcano (Iceland) since 14 April 2010. The profiles of the aerosol optical properties, namely ...

    • Monitoring of the Eyjafjallajokull volcanic aerosol plume over the Iberian Peninsula by means of four EARLINET lidar stations 

      Sicard, Michaël; Guerrero Rascado, Juan Luis; Navas Guzmán, Francisco; Preissler, J.; Molero, Francisco; Tomás Martinez, Sergio; Bravo Aranda, Juan Antonio; Comerón Tejero, Adolfo; Rocadenbosch Burillo, Francisco; Wagner, F.; Pujadas Cordero, Manuel; Alados Arboledas, Lucas (2012-03-30)
      Article
      Accés obert
      Lidar and sun-photometer measurements were performed intensively over the Iberian Peninsula (IP) during the eruption of the Eyjafjallajokull volcano (Iceland) in April–May 2010. The volcanic plume reached all the IP stations ...

    • Monitoring of the Eyjafjallajökull volcanic aerosol plume over the Iberian Peninsula by means of four EARLINET lidar stations 

      Alados Arboledas, Lucas; Pujadas, Manuel; Wagner, F.; Rocadenbosch Burillo, Francisco; Sicard, Michaël; Guerrero Rascado, Juan Luis; Navas Guzmán, Francisco; Preissler, J.; Molero, Francisco; Tomás Martínez, Sergio; Bravo Aranda, J. A.; Comerón Tejero, Adolfo (2011)
      Article
      Accés obert
      Lidar and sun-photometer measurements were performed intensively over the Iberian Peninsula (IP) during the eruption of Eyjafjallaj ¨ okull volcano (Iceland) in April–May 2010. The volcanic plume hit all the IP stations ...