Browsing by Author "Freudenthaler, Volker"

Now showing items 1-17 of 17

    • Air mass modification over the Europe : EARLINET aerosol observations from Wales to Belarus 

      Wandinger, Ulla; Mattis, Ina; Tesche, Matthias; Ansmann, Albert; Bösenberg, Jens; Chaikovski, Anatoly; Freudenthaler, Volker; Komguem, Leonce; Linné, Hoger; Matthias, Volker; Pelon, Jacques; Sauvage, Laurent; Sobolewski, Piotr; Vaughan, Geraint; Wiegner, Matthias (2004-12-27)
      For the first time, the vertically resolved aerosol optical properties of western and central/eastern European haze are investigated as a function of air mass transport. Special emphasis is put on clean maritime air masses ...

    • Characterization of Saharan dust, marine aerosols and mixtures of biomass-burning aerosols and dust by means of multi-wavelength depolarization and Raman lidar measurements during SAMUM 2 

      Groß, Silke; Tesche, Matthias; Freudenthaler, Volker; Toledano, Carlos; Wiegner, Matthias; Ansmann, Albert; Althausen, Dietrich; Seefeldner, Meinhard (2011-09-01)
      The particle linear depolarization ratio δp of Saharan dust, marine aerosols and mixtures of biomass-burning aerosols from southern West Africa and Saharan dust was determined at three wavelengths with three lidar systems ...

    • Characterization of the planetary boundary layer during SAMUM-2 by means of lidar measurements 

      Gross, Silke; Gasteiger, Josef; Freudenthaler, Volker; Wiegner, Matthias; Geiss, Alexander; Schladitz, Alexander; Toledano, Carlos; Kandler, Konrad; Tesche, Matthias; Ansmann, Albert; Wiedensohler, Alfred (2011-09-01)
      Measurements with two Raman-depolarization lidars of the Meteorological Institute of the Ludwig-Maximilians-Universität, München, Germany, performed during SAMUM-2, were used to characterize the planetary boundary layer ...

    • Co-ordinated vertical profiling of Saharan dust over western and central Europe with a continental lidar network : The 11-16 October 2001 outbreak 

      Ansmann, Albert; Bosenberg, J.; Chaikovsky, Anatoly; Eixmann, R.; Freudenthaler, Volker; Garcia-Vizcaino, D.; Komguem, L.; Linne, Holger; Matthias, M.; Mattis, I.; Mitev, Valentin; Mueller, D.; Munoz, C.; Nickovic, S.; Pelon, J.; Sauvage, L.; Sobolewsky, P.; Srivastava, M.K.; Vaughan, G.; Wandinger, U.; Wiegner, M. (INST TROPICAL MEDICINE ROTTERDAM - LEIDEN, 2003)
      The spread of mineral particles over southwestern, western, and central Europe resulting from a strong Saharan dust outbreak in October 2001 was observed with the European Aerosol Research Lidar Network (EARLINET). For the ...

    • Depolarization ratio profiling at several wavelengths in pure Saharan dust during SAMUM 2006 

      Freudenthaler, Volker; Esselborn, Michael; Wiegner, Matthias; Heese, Birgit; Tesche, Matthias; Ansmann, Albert; Mueller, D.; Althausen, Dietrich; Wirth, Martin; Fix, Andreas; Ehret, Gerhard; Knippertz, Peter; Toledano, Carlos; Gasteiger, Josef; Garhammer, Markus; Seefeldner, Andmeinhard (2009-02)
      Vertical profiles of the linear particle depolarization ratio of pure dust clouds were measured during the Saharan Mineral Dust Experiment (SAMUM) at Ouarzazate, Morocco (30.9 degrees N, -6.9 degrees E), close to source ...

    • Doppler lidar studies of heat island effects on vertical mixing of aerosols during SAMUM-2 

      Engelmann, Ronny; Ansmann, Albert; Horn, Stefan; Seifert, Patric; Althausen, Dietrich; Tesche, Matthias; Esselborn, Michael; Fruntke, Julia; Lieke, Kirsten; Freudenthaler, Volker; Gross, Silke (2011-09-01)
      A wind Doppler lidar was deployed next to three aerosol lidars during the SAMUM-2 campaign on the main island of Cape Verde. The effects of the differential heating of the island and the surrounding ocean and the orographic ...

    • EARLINET observations of the Eyjafjallajokull ash plume over Europe 

      Pappalardo, Gelsomina; Amodeo, Aldo; Ansmann, Albert; Apituley, Arnoud; Alados Arboledas, Lucas; Balis, Dimitris; Boeckmann, Christine; Chaikovsky, Anatoli; Comeron, Adolfo; D'Amico, Giuseppe; De Tomasi, Ferdinando; Freudenthaler, Volker; Giannakaki, Elina; Giunta, Aldo; Grigorov, Ivan; Gustafsson, Ove; Gross, Silke; Haeffelin, Martial; Iarlori, Marco; Kinne, Stefan; Linne, Holger; Madonna, Fabio; Mamouri, Rodanthi; Mattis, Ina; McAuliffe, Michael; Molero, Francisco; Mona, Lucia; Mueller, D.; Mitev, Valentin; Nicolae, Doina; Papayannis, Alexandros; Perrone, Maria Rita; Pietruczuk, Aleksander; Pujadas, Manuel; Putaud, Jean-Philippe; Ravetta, Francois; Rizi, Vincenzo; Serikov, Ilya; Sicard, Michael; Simeonov, Valentin; Spinelli, Nicola; Stebel, Kerstin; Trickl, Thomas; Wandinger, U.; Wang, Xuan; Wagner, Frank; Wiegner, Matthias (SPIE, 2010)
      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: the European Aerosol Research Lidar Network for the Aerosol Climatology on Continental Scale 

      Pappalardo, Gelsomina; Boesenberg, Jens; Amodeo, Aldo; Ansmann, Albert; Apituley, Arnoud; Alados Arboledas, Lucas; Balis, Dimitris; Boeckmann, Christine; Chaikovsky, Anatoly; Comeron, Adolfo; D'Amico, Giuseppe; Freudenthaler, Volker; Grigorov, Ivan; Hansen, Georg; Linne, Holger; Kinne, Stefan; Mattis, Ina; Mona, Lucia; Mueller, D.; Mitev, Valentin; Nicolae, Doina; Papayannis, Alexandros; Perrone, Maria Rita; Pietruczuk, Aleksander; Pujadas, Manuel; Putaud, Jean-Philippe; Ravetta, Francois; Rizi, Vincenzo; Simeonov, Valentin; Spinelli, Nicola; Trickl, Thomas; Wandinger, U.; Wiegner, Matthias (American Institute of Physics, 2009)
      Lidar techniques represent the most suitable tool to obtain information on the aerosol vertical distribution and therefore to close this kind of observational gap. Lidar networks are fundamental to study aerosol on large ...

    • In situ aerosol characterization at Cape Verde. Part 2 : Parametrization of relative humidity- and wavelength-dependent aerosol optical properties 

      Schladitz, Alexander; Müller, Thomas; Nordmann, Stephan; Tesche, Matthias; Gross, Silke; Freudenthaler, Volker; Gasteiger, Josef; Wiedensohler, Alfred (2011-09-01)
      An observation-based numerical study of humidity-dependent aerosol optical properties of mixed marine and Saharan mineral dust aerosol is presented. An aerosol model was developed based on measured optical and microphysical ...

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

      Ansmann, A.; Boesenberg, J.; Chaikovsky, A.; Comeron, A.; Eckhardt, S.; Eixmann, R.; Freudenthaler, Volker; Ginoux, P.; Komguem, L.; Linne, H.; Marquez, M.A.L.; Matthias, M.; Mattis, I.; Mitev, Valentin; Mueller, D.; Music, S.; Nickovic, S.; Pelon, J.; Sauvage, L.; Sobolewsky, P.; Srivastava, M.K.; Stohl, A.; Torres, O.; Vaughan, G.; Wandinger, U.; Wiegner, M. (2003-12-24)
      [1] 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 ...

    • Microphysical and optical properties of dust and tropical biomass burning aerosol layers in the Cape Verde region-an overview of the airborne in situ and lidar measurements during SAMUM-2 

      Weinzierl, Bernadett; Sauer, Daniel; Esselborn, Michael; Petzold, Andreas; Veira, Andreas; Rose, Maximilian; Mund, Susanne; Wirth, Martin; Ansmann, Albert; Tesche, Matthias; Gross, Silke; Freudenthaler, Volker (2011-09-01)
      In the framework of the Saharan Mineral Dust Experiment (SAMUM) airborne High Spectral Resolution Lidar and in situ measurements of the particle size, aerosol mixing state and absorption coefficient were conducted. Here, ...

    • Modelling lidar-relevant optical properties of complex mineral dust aerosols 

      Gasteiger, Josef; Wiegner, Matthias; Gross, Silke; Freudenthaler, Volker; Toledano, Carlos; Tesche, Matthias; Kandler, Konrad (2011-09-01)
      We model lidar-relevant optical properties of mineral dust aerosols and compare the modelling results with optical properties derived from lidar measurements during the SAMUM field campaigns. The Discrete Dipole Approximation ...

    • Optical and microphysical properties of smoke over Cape Verde inferred from multiwavelength lidar measurements 

      Tesche, Matthias; Mueller, D.; Gross, Silke; Ansmann, Albert; Althausen, Dietrich; Freudenthaler, Volker; Weinzierl, Bernadett; Veira, Andreas; Petzold, Andreas (2011-09)
      Lidar measurements of mixed dust/smoke plumes over the tropical Atlantic ocean were carried out during the winter campaign of SAMUM-2 at Cape Verde. Profiles of backscatter and extinction coefficients, lidar ratios, and ...

    • Optimization of lidar data processing : a goal of the EARILINET-ASOS project 

      Amodeo, Aldo; Mattis, Ina; Boeckmann, Christine; D'Amico, Giuseppe; Mueller, D.; Osterloh, Lukas; Chaikovsky, Anatoly; Pappalardo, Gelsomina; Ansmann, Albert; Apituley, Arnoud; Alados-Arboledas, Lucas; Balis, Dimitris; Comeron, Adolfo; Freudenthaler, Volker; Mitev, Valentin; Nicolae, Doina; Papayannis, Alexandros; Perrone, Maria Rita; Pietruezuk, Aleksander; Pujadas, Manuel; Putaud, Jean-Philippe; Ravetta, Francois; Rizi, Vincenzo; Simeonovs, Valentin; Spinelli, Nicola; Stebel, Kersten; Stoyanov, Dimitar; Trickl, Thomas; Wiegner, Matthias (SPIE, 2007)
      EARLINET-ASOS (European Aerosol Research Lidar Network - Advanced Sustainable Observation System) is a 5-year EC Project started in 2006. Based on the EARLINET infrastructure, it will provide appropriate tools to improve ...

    • Profiling of Saharan dust and biomass-burning smoke with multiwavelength polarization Raman lidar at Cape Verde 

      Tesche, Matthias; Gross, Silke; Ansmann, Albert; Mueller, D.; Althausen, Dietrich; Freudenthaler, Volker; Esselborn, Michael (2011-09)
      Extensive lidar measurements of Saharan dust and biomass-burning smoke were performed with one airborne and three ground-based instruments in the framework of the second part of the SAharan Mineral dUst experiMent (SAMUM-2a) ...

    • Regional modelling of Saharan dust and biomass-burning smoke. Part 1 : Model description and evaluation 

      Heinold, Bernd; Tegen, Ina; Schepanski, Kerstin; Tesche, Matthias; Esselborn, Michael; Freudenthaler, Volker; Gross, Silke; Kandler, Konrad; Knippertz, Peter; Mueller, D.; Schladitz, Alexander; Toledano, Carlos; Weinzierl, Bernadett; Ansmann, Albert; Althausen, Dietrich; Müller, Thomas; Petzold, Andreas; Wiedensohler, Alfred (2011-09)
      The spatio-temporal evolution of the Saharan dust and biomass-burning plume during the SAMUM-2 field campaign in January and February 2008 is simulated at 28 km horizontal resolution with the regional model-system COSMO-MUSCAT. ...

    • Vertical profiling of Saharan dust with Raman lidars and airborne HSRL in southern Morocco during SAMUM 

      Tesche, Matthias; Ansmann, Albert; Mueller, D.; Althausen, Dietrich; Mattis, Ina; Heese, Birgit; Freudenthaler, Volker; Wiegner, Matthias; Esselborn, Michael; Pisani, Gianluca; Knippertz, Peter (2009-02)
      Three ground-based Raman lidars and an airborne high-spectral-resolution lidar (HSRL) were operated during SAMUM 2006 in southern Morocco to measure height profiles of the volume extinction coefficient, the extinction-to ...