Now showing items 21-40 of 126

    • Characterization of atmospheric aerosols for a long-range transport of biomass-burning from North America over the Iberian Peninsula 

      Alados Arboledas, Lucas; Guerrero Rascado, Juan Luis; Olmo, F.J.; Molero, Francisco; Navas Guzmán, Francisco; Costa, J. M.; Silva, A.M.; Pujadas, Manuel; Sicard, Michaël (2010)
      Conference lecture
      Open Access
      This work presents the characterization of atmospheric aerosols performed over the Iberian Peninsula in the framework of EARLINET for a special episode on 20th August 2007. The assessment of aerosol radiative impact requires ...
    • Climatology of the aerosol extinction to backscatter ratio from sun photometric measurements 

      Baldasano Recio, José María; Pedrós, Roberto; Estallés, Víctor; Sicard, Michaël; Gómez Amo, Jose Luis; Utrillas, Maria Pilar; Martínez Lozano, José Antonio; Rocadenbosch Burillo, Francisco; Pérez, C. (IEEE Press. Institute of Electrical and Electronics Engineers, 2010-01-01)
      Article
      Open Access
      The elastic lidar equation contains two unknown atmospheric parameters, namely, the particulate optical extinction and backscatter coefficients, which are related through the lidar ratio (i.e., the particulate-extinct ...
    • 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)
      Conference report
      Open Access
      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 ...
    • Concept design of a multiwavelength aerosol lidar system with mitigated diattenuation effects and depolarization-measurement capability 

      Comerón Tejero, Adolfo; Sicard, Michaël; Vidal Calvo, Eric; Barragán Cuesta, Rubén; Muñoz Porcar, Constantino; Rodríguez Gómez, Alejandro Antonio; Tiana Alsina, Jordi; Rocadenbosch Burillo, Francisco; García Vizcaíno, David (2015)
      Conference lecture
      Restricted access - publisher's policy
      It is known that the retrieval of aerosol extinction and backscatter coefficients from lidar data acquired through so-called total-power channels – intended to measure the backscattered power irrespective of the polarization ...
    • Considerations about the determination of the depolarization calibration profile of a two-telescope lidar and its implications for volume depolarization ratio retrieval 

      Comerón Tejero, Adolfo; Rodríguez Gómez, Alejandro Antonio; Sicard, Michaël; Barragán Cuesta, Rubén; Muñoz Porcar, Constantino; Rocadenbosch Burillo, Francisco; Granados Muñoz, María José (Multidisciplinary Digital Publishing Institute (MDPI), 2018-06-04)
      Article
      Open Access
      We propose a new method for calculating the volume depolarization ratio of light backscattered by the atmosphere and a lidar system that employs an auxiliary telescope to detect the depolarized component. It takes into ...
    • Contribución de la red de lidares EARLINET a la infraestructura europea de investigación atmosférica ACTRIS (Aerosols, Clouds, and Trace Gases Infrastructure Network). 

      Comerón Tejero, Adolfo; Sicard, Michaël; Rocadenbosch Burillo, Francisco (2012)
      Conference report
      Open Access
    • Contribution of EARLINET/ACTRIS to the summer 2013 special observing period of the ChArMEx project: monitoring of a Saharan dust event over the western and central Mediterranean 

      Sicard, Michaël; Barragán Cuesta, Rubén; Muñoz Porcar, Constantino; Comerón Tejero, Adolfo; Mallet, Marc; Dulac, F; Pelon, Jacques; Alados Arboledas, Lucas; Amodeo, Aldo; Boselli, Antonella; Bravo Aranda, Juan Antonio; D'Amico, Giuseppe; Granados Muñoz, María José; Leto, Giuseppe; Guerrero Rascado, Juan Luis; Madonna, Fabio; Mona, Lucia; Pappalardo, Gelsomina; Perrone, Maria-Rita; Burlizzi, Pasquale; Rocadenbosch Burillo, Francisco; Rodríguez Gómez, Alejandro Antonio; Scollo, Simona; Spinelli, N.; Titos, Gloria; Wang, Xuan; Zanmar Sanchez, Ricardo (2016-10-22)
      Article
      Open Access
      In the framework of the Chemistry-Aerosol Mediterranean Experiment (ChArMEx; http://charmex.lsce.ipsl.fr/) initiative, a field campaign took place in the western Mediterranean Basin between 10 June and 5 July 2013 within ...
    • Coordinated lidar observations of Saharan dust over Europe in the frame of EARLINET-ASOS project during CALIPSO overpasses: A case study analysis with modeling support 

      de Tomasi, Ferdinando; Papayannis, Alexander; Amidiris, V.; Mona, L.; Mamouri, R. E.; Apituley, Arnoud; Alados Arboledas, Lucas; Balis, Dimitris; Chaikovsky, Anatoli; Wang, Xuan; Pietruczuk, Aleksander; Pérez, C.; Nicolae, D.; Müller, D.; Molero, Francisco; Mitev, V.; Mattis, I.; Linné, Holger; Gustafsson, O.; Grigorov, Ivan V.; Putaud, J. P.; Pappalardo, Gelsomina; Trickl, Thomas; D'Amico, Giuseppe; Simeonov, Valentin; Stebel, K.; Schnell, Franziska; Sicard, Michaël; Ravetta, F.; Rizi, V. (2009)
      Conference report
      Open Access
      Coordinated lidar observations of Saharan dust over Europe are performed in the frame of the EARLINETASOS (2006-2011) project, which comprises 25 stations: 16 Raman lidar stations, including 8 multiwavelength (3+2 station) ...
    • Current research in lidar technology used for the remote sensing of atmospheric aerosols 

      Comerón Tejero, Adolfo; Muñoz Porcar, Constantino; Rocadenbosch Burillo, Francisco; Rodríguez Gómez, Alejandro Antonio; Sicard, Michaël (MDPI AG, 2017-06-20)
      Article
      Open Access
      Lidars are active optical remote sensing instruments with unique capabilities for atmospheric sounding. A manifold of atmospheric variables can be profiled using different types of lidar: concentration of species, wind ...
    • Depolarization channel for barcelona lidar. Implementation and preliminary measurements 

      Rodríguez Gómez, Alejandro Antonio; Sicard, Michaël; Muñoz Porcar, Constantino; Barragán Cuesta, Rubén; Comerón Tejero, Adolfo; Rocadenbosch Burillo, Francisco; Vidal, Eric (EDP Sciences, 2018)
      Conference lecture
      Open Access
      A new depolarization channel has beenimplemented in the BarcelonaTech University(UPC) multi-wavelength lidar system. The opticaland mechanical designs are presented. The specialconfiguration of the total power channel is ...
    • Detection and simulation of wildfire smoke impacting a Mediterranean urban atmosphere 

      van Drooge, B.L.; Sicard, Michaël; Stohl, Andreas; Fontal, Marta; Bravo, Natalia; Muñoz, Alvaro; Lange, Diego; Fernández, Pilar; Obrador Grimalt, Joan (2016-05)
      Article
      Open Access
      The combined use of chemical analysis of organic molecules in atmospheric aerosols (PM1) collected in situ in Barcelona and optical measurements with a light detection and ranging (LIDAR) instrument allowed the characterization ...
    • Diffuse sunlight based calibration of the water vapor channel in the UPC Raman lidar 

      Muñoz Porcar, Constantino; Comerón Tejero, Adolfo; Sicard, Michaël; Barragán Cuesta, Rubén; García Vizcaíno, David; Rodríguez Gómez, Alejandro Antonio; Rocadenbosch Burillo, Francisco (EDP Sciences, 2017)
      Conference lecture
      Open Access
      A method for determining the calibration factor of the water vapor channel of a Raman lidar, based on zenith measurements of diffuse sunlight and on assumptions regarding some system parameters and Raman scattering models, ...
    • Dimensionless parameterization of lidar for laser remote sensing of the atmosphere and its application to systems with SiPM and PMT detectors 

      Agishev, Ravil R.; Comerón Tejero, Adolfo; Rodríguez Gómez, Alejandro Antonio; Sicard, Michaël (2014-05-20)
      Article
      Open Access
      In this paper, we show a renewed approach to the generalized methodology for atmospheric lidar assessment, which uses the dimensionless parameterization as a core component. It is based on a series of our previous works ...
    • Direct, longwave radiative forcing of mineral dust: improvement of its estimation by means of tools recently developed by the EARLINET community 

      Sicard, Michaël; Muñoz Porcar, Constantino; Comerón Tejero, Adolfo; Rodríguez Gómez, Alejandro Antonio; Rocadenbosch Burillo, Francisco; Barragán Cuesta, Rubén (2015)
      Conference report
      Restricted access - publisher's policy
      The objective of this work is to investigate how the knowledge of the vertically-resolved fine and coarse mode aerosol optical depth modifies the longwave radiative forcing. Since relatively little the EARLINET (European ...
    • Dust aerosol radiative effects during summer 2012 simulated with a coupled regional aerosol-atmosphere-ocean model over the Mediterranean 

      Nabat, Pierre; Somot, S; Mallet, Marc; Michou, M; Sevault, F; Driouech, F; Meloni, D; di Sarra, G; di Biagio, C; Formenti, P; Sicard, Michaël; Leon, JF; Bouin, MN (2015-03-24)
      Article
      Open Access
      The present study investigates the radiative effects of dust aerosols in the Mediterranean region during summer 2012 using a coupled regional aerosol-atmosphere-ocean model (CNRM-RCSM5). A prognostic aerosol scheme, including ...
    • Dust aerosol radiative effects during summer 2012 simulated with a coupled regional aerosol–atmosphere–ocean model over the Mediterranean 

      Nabat, Pierre; Somot, S; Mallet, Marc; Michou, M; Sevault, F; Driouech, F; Meloni, D; di Sarra, G; di Biagio, C; Formenti, P; Sicard, Michaël; Leon, JF; Bouin, MN (2014-10-02)
      Article
      Open Access
      The present study investigates the effects of aerosols on the Mediterranean climate daily variability during summer 2012. Simulations have been carried out using the coupled regional climate system model CNRM-RCSM5 which ...
    • EARLINET instrument intercomparison campaigns: overview on strategy and results 

      Wandinger, Ulla; Freudenthaler, Volker; Baars, Holger; Amodeo, Aldo; Engelmann, Ronny; Mattis, Ina; Gross, Silke; Pappalardo, Gelsomina; Giunta, Aldo; D'Amico, Giuseppe; Chaikovsky, Anatoli; Osipenko, Fiodor; Slesar, Alexander; Nicolae, D.; Belegante, Livio; Talianu, Camelia; Serikov, I.; Linné, Holger; Jansen, Friedhelm; Apituley, Arnoud; Wilson, K.; de Graaf, Martin; Trickl, Thomas; Giehl, H.; Adam, Mariana; Comerón Tejero, Adolfo; Muñoz Porcar, Constantino; Rocadenbosch Burillo, Francisco; Sicard, Michaël; Tomás Martinez, Sergio; Lange, Diego; Kumar, Dhiraj; Pujadas Cordero, Manuel; Molero, Francisco; Fernández, Alfonso J.; Alados Arboledas, Lucas; Bravo Aranda, J. A.; Navas Guzmán, Francisco; Guerrero Rascado, Juan Luis; Granados Muñoz, María José; Preissler, J.; Wagner, F.; Gausa, Michael; Grigorov, I. Ivan; Stoyanov, Dimitar Vassilev; Iarlori, M.; Rizi, Vicenzo; Spinelli, N.; Boselli, Antonella; Wang, Xuan; Lo Feudo, Teresa; Perrone, Maria-Rita; De Tomasi, Ferdinando; Burlizzi, Pasquale (2016-03-10)
      Article
      Open Access
      This paper introduces the recent European Aerosol Research Lidar Network (EARLINET) quality-assurance efforts at instrument level. Within two dedicated campaigns and five single-site intercomparison activities, 21 EARLINET ...
    • EARLINET observations of the Eyjafjallajökull ash plume over Europe 

      Pappalardo, Gelsomina; Comerón Tejero, Adolfo; Sicard, Michaël (2010)
      Conference report
      Restricted access - publisher's policy
      EARLINET, the European Aerosol Research Lidar NETwork, established in 2000, is the first coordinated lidar network for tropospheric aerosol study on the continental scale. The network activity is based on scheduled ...
    • Earlinet validation of CATS L2 product 

      Proestakis, E.; Amiridis, Vassilis; Kottas, M.; Yorks, J.; Muñoz Porcar, Constantino; Sicard, Michaël (EDP Sciences, 2018)
      Conference report
      Open Access
      The Cloud-Aerosol Transport System (CATS) onboard the International Space Station (ISS), is a lidar system providing vertically resolved aerosol and cloud profiles since February 2015. In this study, the CATS aerosol product ...
    • EARLINET: potential operationality of a research network 

      Sicard, Michaël; D'Amico, Giuseppe; Comerón Tejero, Adolfo; Mona, Lucia; Alados Arboledas, Lucas; Amodeo, Aldo; Baars, Holger; Baldasano Recio, José María; Belegante, Livio; Binietoglou, Ioannis; Bravo Aranda, Juan Antonio; Fernández García, Alfonso; Fréville, Patrick; García Vizcaíno, David; Giunta, Aldo; Granados Muñoz, Maria; Guerrero Rascado, Juan Luis; Hadjimitsis, D.; Haefele, A.; Hervo, M.; Iarlori, M.; Kokkalis, P; Lange Vega, Diego; Mamouri, Rodanthi-Elisavet; Mattis, Ina; Molero, Francisco; Montoux, Nadège; Muñoz, Alvaro; Muñoz Porcar, Constantino; Navas Guzmán, Francisco; Nicolae, D.; Nisantzi, A.; Papagiannopoulos, N.; Papayannis, Alexander; Pereira, Sérgio; Preissler, Jana; Pujadas Cordero, Manuel; Rizi, Vicenzo; Rocadenbosch Burillo, Francisco; Sellegri, Karine; Simeonov, Valentin; Tsaknakis, G.; Wagner, Frank; Pappalardo, Gelsomina (2015-11-02)
      Article
      Open Access
      In the framework of ACTRIS (Aerosols, Clouds, and Trace Gases Research Infrastructure Network) summer 2012 measurement campaign (8 June–17 July 2012), EARLINET organized and performed a controlled exercise of feasibility ...