Browsing by Author "Ansmann, Albert"

Now showing items 1-20 of 37

    • 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 atmospheric aerosols with multiwavelength Raman lidar 

      Mueller, D.; Mattis, I.; Kolgotin, Alexei; Ansmann, Albert; Wandinger, U.; Althausen, D. (SPIE, 2007)
      Multiwavelength Raman lidar observations have matured into a powerful tool for the vertical resolved characterization of optical and microphysical properties of atmospheric aerosol particles. Raman lidars that operate with ...

    • 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 ...

    • Correction to “Volcanic aerosol layers observed with multiwavelength Raman lidar over central Europe in 2008–2009” 

      Mattis, Ina; Seifert, Patric; Mueller, D.; Tesche, Matthias; Hiebsch, Anja; Kanitz, Thomas; Schmidt, Joerg; Finger, Fanny; Wandinger, Ulla; Ansmann, Albert (2010-10-13)

    • 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 ...

    • Dual-FOV Raman and Doppler lidar studies of aerosol-cloud interactions : Simultaneous profiling of aerosols, warm-cloud properties, and vertical wind 

      Schmidt, Jörg; Ansmann, Albert; Bühl, Johannes; Baars, Holger; Wandinger, Ulla; Mueller, D.; Malinka, Aleksey V. (2014-05-16)
      For the first time, colocated dual-field of view (dual-FOV) Raman lidar and Doppler lidar observations (case studies) of aerosol and cloud optical and microphysical properties below and within thin layered liquid water ...

    • Dust and smoke transport from Africa to South America : Lidar profiling over Cape Verde and the Amazon rainforest 

      Ansmann, Albert; Baars, Holger; Tesche, Matthias; Mueller, D.; Althausen, Dietrich; Engelmann, Ronny; Pauliquevis, Theotonio; Artaxo, Paulo (2009-06-02)
      Quasi-simultaneous vertically resolved multiwavelength aerosol Raman lidar observations were conducted in the near field (Praia, Cape Verde, 15 degrees N, 23.5 degrees W) and in the far field (Manaus, Amazon basin, Brazil, ...

    • Dust mobilization and transport in the northern Sahara during SAMUM 2006 - a meteorological overview 

      Knippertz, Peter; Ansmann, Albert; Althausen, Dietrich; Mueller, D.; Tesche, Matthias; Bierwirth, Eike; Dinter, Tilman; Mueller, Thomas; Von Hoyningen-Huene, Wolfgang; Schepanski, Kerstin; Wendisch, Manfred; Heinold, Bernd; Kandler, Konrad; Petzold, Andreas; Schuetz, Lothar; Tegen, Ina (2009-02)
      The SAMUM field campaign in southern Morocco in May/June 2006 provides valuable data to study the emission, and the horizontal and vertical transports of mineral dust in the Northern Sahara. Radiosonde and lidar observations ...

    • 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 ...

    • Gravity-wave-induced cloud formation in desert dust : Observation with temperature/humidity/aerosol Raman lidar in the framework of earlinet 

      Ansmann, Albert; Mattis, I.; Mueller, D.; Wandinger, U.; Althausen, D. (ESA PUBLICATIONS DIVISION C/O ESTEC, 2004)
      The evolution of three cloud layers that formed during the passage of a gravity wave in a desert dust layer was monitored with an advanced Raman lidar. Dust is characterized in terms of particle optical properties. The ...

    • Lidar observations of the Eyjafjallajökull volcanic ash plume at Leipzig, Germany 

      Tesche, Matthias; Ansmann, Albert; Hiebsch, Anja; Mattis, Ina; Schmidt, Jörg; Seifert, Patric; Wandinger, Ulla (SPIE, 2010-11-08)
      From 16-24 April 2010 multiwavelength EARLINET Raman lidar and AERONET Sun photometer measurements were performed at the Leibniz Institute for Tropospheric Research (IfT) in Leipzig (51.3° N, 12.5° E), Germany, to monitor ...

    • Lidar observations of the vertical aerosol flux in the planetary boundary layer 

      Engelmann, Ronny; Wandinger, Ulla; Ansmann, Albert; Mueller, D.; Zeromskis, Egidijus; Althausen, Dietrich; Wehner, Birgit (2008-08)
      The vertical aerosol transport in the planetary boundary layer (PBL) is investigated with lidars. Profiles of the vertical wind velocity are measured with a 2-mu m Doppler wind lidar. Aerosol parameters are derived from ...

    • 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, ...

    • Optic-fiber scramblers and a fourier transform lens as a means to tackle the problem on the overlap factor of lidar 

      Arshinov, Y.; Bobrovnikov, S.; Serikov, J.; Althausen, D.; Ansmann, Albert; Mattis, I.; Mueller, D.; Wandinger, U. (ESA PUBLICATIONS DIVISION C/O ESTEC, 2004)
      We present an instrumental approach to formation of the light beam in the image space of lidar optical receiver, behind its field stop, aimed at removing some adverse range dependent effects of the lidar overlap factor on ...

    • 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 ...

    • Optical and physical characterization of European and Indo-Asian pollution plumes with six-wavelength aerosol lidar 

      Mueller, D.; Ansmann, Albert; Franke, K.; Althausen, D.; Wandinger, U. (IEEE COMPUTER SOC, 2001)
      Optical and physical particle properties of two typical pollution plumes emitted from the European continent during the Aerosol Characterization Experiment ACE 2, and from the Indo-Asian continent during INDOEX are ...