Exploració per tema "Atmosphere -- Laser observations"

Ara es mostren els items 1-20 de 43

    • A wind speed and fluctuation simulator for characterizing the wind lidar correlation method 

      Tomás, S; Sicard, Michaël; Masjuan, J; Md. Reba, Mohd Nadzri; Muñoz Porcar, Constantino; Rocadenbosch Burillo, Francisco (2007)
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      Aerosol distribution in the atmosphere is used as a wind-tracer by lidars since it is drifted by the wind and respond to its changes. Two methods are used: the correlation and the Doppler method. This first one is easier ...

    • Aerosol closure study by lidar, sun photometry, and airborne optical counters during DAMOCLES field campaign at El Arenosillo sounding station, Spain 

      Guerrero Rascado, Juan Luis; Andrey, J.; Sicard, Michaël; Comerón Tejero, Adolfo; Pujadas Cordero, Manuel; Molero, Francisco; Rocadenbosch Burillo, Francisco; Pedrós Esteban, Roberto; Serrano-Vargas, O.; Gil Ojeda, Manuel; Olmo, F. J.; Lyamani, H.; Navas Guzmán, Francisco; Alados Arboledas, Lucas (American Geophysical Union (AGU), 2011-01-26)
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      We present a comparison of aerosol properties derived from in situ and remote sensing instruments during DAMOCLES campaign, aimed at investigating the equivalence between the instrumentation and methodologies employed by ...

    • Aerosol lidar intercomparison in the framework of the EARLINET project: 3. Raman lidar algorithm for aerosol extinction, backscatter and lidar ratio 

      Pappalardo, Gelsomina; Amodeo, Aldo; Pandolfi, Marco; Wandinger, Ulla; Ansmann, Albert; Bösenberg, Jens; Matthias, Volker; Amiridis, Vassilis; De Tomasi, Ferdinando; Iarlori, M.; Papayannis, Alexander; Rocadenbosch Burillo, Francisco; Wang, Xuan (2004-10)
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      Accés restringit per política de l'editorial
      An intercomparison of the algorithms used to retrieve aerosol extinction and backscatter starting from Raman lidar signals has been performed by 11 groups of lidar scientists involved in the European Aerosol Research Lidar ...

    • Algorithm and software for the retrieval of vertical aerosol properties using combined lidar/radiometer data: dissemination in EARLINET 

      Chaikovsky, Anatoli; Dubovik, O; Goloub, Philppe; Tanré, Didier; Pappalardo, Gelsomina; Wandinger, Ulla; Chaikovskaya, Ludmila; Denisov, Sergey; Grudo, Jan; Lopatin, Anton; Karol, Yana; Lapyonok, Tatsiana; Korol, Michail; Osipenko, Fiodor; Rocadenbosch Burillo, Francisco; Sicard, Michaël (2012)
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      Ten combined lidar and sun-radiometer stations in theEuropean Aerosol Research Lidar Network(EARLINET) have been testing technique and software for retrieving aerosol microstructure parameters from coordinated lidar and ...

    • Anemómetro laser doppler para la medida de dos componentes de velocidad para aplicaciones hidrodinamicas (2d-lda) 

      García Vizcaíno, David; Dios Otín, Víctor Federico; Rodríguez Gómez, Alejandro Antonio; Comerón Tejero, Adolfo; Rocadenbosch Burillo, Francisco; Muñoz Porcar, Constantino (Universidad Europea de Madrid, 2001)
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      A Laser Doppler Anemometer system designed to measure two components of the velocity vector in fluids is presented. The scheme followed is the differential technique with backward scattering ...

    • Atmospheric aerosol measurement with a network of advanced lidar instruments 

      Comerón Tejero, Adolfo; Sicard, Michaël; Rocadenbosch Burillo, Francisco; Muñoz Porcar, Constantino; Rodríguez Gómez, Alejandro Antonio; García Vizcaíno, David (2013-03-11)
      Article
      Accés restringit per política de l'editorial
      A European network of atmosphere sensors uses multi-wavelength elastic-Raman lidar instruments in its infrastructure.

    • Caracterización de los pulsos generados mediante q-switching en un transmisor laser 

      Fabrega, F J; Puente Baliarda, Carles; Rocadenbosch Burillo, Francisco; Comerón Tejero, Adolfo (Publicaciones de la Universidad de Valladolid, 1995)
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      In this paper, a model to characterizc Q-switched laser pulses is described. In the power cycle this model takes into account two different equations, one for the time rate of change of the photon density within the small ...

    • Comparison between the Kalman and the non-linear least-squares estimators in low signal-to-noise ratio lidar inversion 

      Rocadenbosch Burillo, Francisco; Sicard, Michaël; Comerón Tejero, Adolfo; Md. Reba, Mohd Nadzri (2008)
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      This works departs from previously published results of the authors and focus on joint estimation and time evolution of the atmospheric backscatter profile and a range-independent lidar ratio by means of 1) adaptive extended ...

    • Design methodology of a ceilometer lidar prototype 

      Gregorio, Eduard; Rocadenbosch Burillo, Francisco; Comerón Tejero, Adolfo (2007)
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      This article presents step-by-step applied methodology to design a 905-nm 5-kHz rep. rate diode-laser biaxial lidar ceilometer prototype beginning from the definition of initial specs, and related trade-offs to the first ...

    • Diseño de un sistema lidar para la monitorización de la dispersión elástica en al atmósfera 

      Rocadenbosch Burillo, Francisco; Puente Baliarda, Carles; Comerón Tejero, Adolfo; Rodríguez de Torres, Alejandro (UNIVERSIDAD DE VALLADOLID URSI, UNIVERSIDAD DE VALLADOLID, 1995)
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      This conununication describes the main characteristics and design trade-offs of an atmospheric lidar for aerosol detection using a Nd:YAG laser transmitter.

    • EARLINET correlative measurements for CALIPSO: first intercomparison results 

      Pappalardo, Gelsomina; Hiebsch, Anja; Ansmann, Albert; Seifert, Patric; Linné, Holger; Mona, Lucia; Alados Arboledas, Lucas; Apituley, Arnoud; Balis, Dimitris; Chaikovsky, Anatoli; D'Amico, Giuseppe; Amodeo, Aldo; Giunta, Aldo; Freudenthaler, Volker; Giannakaki, E.; Grigorov, I. Ivan; Iarlori, M.; Madonna, Fabio; Mamouri, R.E.; Papayannis, Alexander; Nasti, Libera; Mattis, I.; Pietruczuk, Aleksander; Pujadas Cordero, Manuel; Rocadenbosch Burillo, Francisco; Rizi, Vicenzo; Russo, Felicita; De Tomasi, Ferdinando; Schnell, Franziska; Spinelli, N.; Wandinger, Ulla; Wang, Xuan; Wiegner, M. (American Geophysical Union (AGU), 2010-04-15)
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      A strategy for European Aerosol Research Lidar Network (EARLINET) correlative measurements for Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) has been developed. These EARLINET correlative ...

    • EARLINET: a european aerosol research lidar network to establish an aerosol climatology 

      Bösenberg, Jens; Matthias, Volker; Linné, Holger; Comerón Tejero, Adolfo; Rocadenbosch Burillo, Francisco; Pérez López, Carlos; Baldasano Recio, José María (2003-09)
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    • Elastic lidar sensing for the retrieval of wind and structural atmospheric properties 

      Tomás, Sergio; Sicard, Michaël; Rocadenbosch Burillo, Francisco (2010)
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    • Evaluacion de algoritmos de inversion lidar sin memoria 

      Pineda, D; Rocadenbosch Burillo, Francisco; Soriano Ortiz, Cecilia; Comerón Tejero, Adolfo (Publicaciones de la Universidad de Valladolid, 1995)
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      Up to now, the extraction of extinction and backscatter coefficients from a lidar signa] or lidar inversion has been done in homogeneous atmospheres by means of the slope method. Yet, it will be shown that due to its ...

    • Intense dust and extremely fresh biomass burning outbreak in Barcelona, Spain: Characterization of their optical properties and estimation of their direct radiative forcing 

      Sicard, Michaël; Mallet, Maëlle; García Vizcaíno, David; Comerón Tejero, Adolfo; Rocadenbosch Burillo, Francisco; Dubuisson, P.; Muñoz Porcar, Constantino (2012-07)
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      An extremely fresh smoke plume (<5 h) was transported over Barcelona on 23 July 2009, just 5 h after an intense Saharan dust event finalized. Both events were observed by sun-photometer, lidar and satellite systems. Results ...

    • Intercomparison of spanish advanced lidars in the framework of EARLINET 

      Sicard, Michaël; Md. Reba, Mohd Nadzri; Rocadenbosch Burillo, Francisco; Gregorio López, Eduard; Kumar, Dhiraj; Tomás, S; Comerón Tejero, Adolfo; Molero, Francisco; Pujadas, M; Guerrero Rascado, Juan Luis; Alados, L; Pedrós, R; Martinez Lozano, José Antonio (2007)
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      To extend and reinforce the action of the EARLINET- ASOS project, a nucleus of Spanish advanced lidars was created. Four systems were intercompared satisfactorily in terms of backscatter coefficients at two elastic wavelengths.

    • Lidar - Aerosol Sensing 

      Rocadenbosch Burillo, Francisco (Marcel Dekker, 2003-10-31)
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      Lidar is an acronym of light detection and ranging. Laser radars or lidars are the closest optical counterparts of conventional microwave radars that take advantage of the relatively strong interaction of ...

    • Lidar - Wind, Raman, and Other Sensing 

      Rocadenbosch Burillo, Francisco (Marcel Dekker, 2003-10-31)
      Capítol de llibre
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      Lidar stands for Llght Detection and Ranging. Laser radars or lidars, which are optically the closest counterparts of conventional rnicrowave radars, take advantage of the relatively strong interaction of laser light with ...

    • 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)
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      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)
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      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 ...