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Browsing by Author "Wagner, F."
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Comparison of the radiative impact of aerosols derived from vertically resolved (lidar) and vertically integrated (Sun photometer) measurements : Example of an Indian aerosol plume
Wagner, F.; Mueller, D.; Ansmann, A. (2001-10-16)Radiative forcing calculations both at the top of the atmosphere (TOA) and at the surface were done for vertically varying particle properties and their approximation through vertically constant properties. The data sets ... -
European pollution outbreaks during ACE 2 : Lofted aerosol plumes observed with Raman lidar at the Portuguese coast
Ansmann, A.; Wagner, F.; Althausen, D.; Mueller, D.; Herber, A.; Wandinger, U. (2001-09-27)During the Second Aerosol Characterization Experiment (ACE 2) in the summer of 1997, four pollution outbreaks from the European continent were monitored at Sagres (37 degreesN, 9 degreesW), Portugal, by applying the Raman ... -
European pollution outbreaks during ACE 2 : Microphysical particle properties and single-scattering albedo inferred from multiwavelength lidar observations
Mueller, D.; Ansmann, A.; Wagner, F.; Franke, K.; Althausen, D. (2002-08-06)We present vertically resolved physical particle properties and the single-scattering albedo at 532 nm of pollution plumes advected from the European continent out over the Atlantic Ocean. The parameters follow from the ... -
European pollution outbreaks during ACE 2 : Optical particle properties inferred from multiwavelength lidar and star-Sun photometry
Ansmann, A.; Wagner, F.; Mueller, D.; Althausen, D.; Herber, A.; von Hoyningen-Huene, W.; Wandinger, U. (2002-08)[1] On the basis of multiwavelength backscatter and 532-nm extinction profiling with lidar at Sagres (37degreesN, 9degreesW), southern Portugal, and optical depth observations with a star photometer at the lidar site and ... -
Indo-Asian pollution during INDOEX : Microphysical particle properties and single-scattering albedo inferred from multiwavelength lidar observations
Mueller, D.; Franke, K.; Ansmann, A.; Althausen, D.; Wagner, F. (2003-10-07)[1] We present for the first time a comprehensive data set of vertically resolved physical particle properties, and the single-scattering albedo at 532 nm, derived from multiwavelength lidar observations of pollution plumes ... -
Microphysical particle parameters from extinction and backscatter lidar data by inversion with regularization : experiment
Mueller, D.; Wagner, F.; Wandinger, U.; Ansmann, A.; Wendisch, M.; Althausen, D.; von Hoyningen-Huene, W. (2000-04-20)We present effective radius, volume, surface-area, and number concentrations as well as mean complex refractive index of tropospheric particle size distributions based on lidar measurements at six wavelengths. The parameters ... -
One-year observations of particle lidar ratio over the tropical Indian Ocean with Raman lidar
Franke, K.; Ansmann, A.; Mueller, D.; Althausen, D.; Wagner, F.; Scheele, R. (2001-12-15)Observations of the extinction-to-backscatter ratio (lidar ratio) of South and Southeast Asian aerosol particles are presented for the wavelength of 532 nm. Raman lidar measurements were performed in the Maldives (4.1 ... -
Optical properties of the Indo-Asian haze layer over the tropical Indian Ocean
Franke, K.; Ansmann, A.; Mueller, D.; Althausen, D.; Venkataraman, C.; Reddy, M.S.; Wagner, F.; Scheele, R. (2003-01)[1] Multiwavelength backscatter and extinction profiling was performed with a unique aerosol Raman lidar at Hulhule (4degreesN, 73degreesE), Maldives, as part of the Indian Ocean Experiment (INDOEX) between February 1999 ... -
Physical properties of the Indian aerosol plume derived from six-wavelength lidar observations on 25 March 1999 of the Indian Ocean Experiment
Mueller, D.; Wagner, F.; Althausen, D.; Wandinger, U.; Ansmann, A. (2000-05-01)A major pollution outbreak from the Indian subcontinent was observed with a six-wavelength aerosol lidar at Hulule island (4.1 degrees N, 73.3 degrees E) on 25 March 1999 during the Indian Ocean Experiment. From the observed ... -
Vertical profiles of atmospheric particle parameters measured with a scanning 6-wavelength 11-channel aerosol lidar
Althausen, D.; Mueller, D.; Ansmann, Albert; Wandinger, U.; Franke, K.; Wagner, F. (SPIE, 2003)The transportable scanning six-wavelength eleven-channel aerosol lidar of the Insitute for Tropospheric Research represents the most powerful tool for a comprehensive characterization of atmospheric particles with lidar. ... -
Vertical profiling of optical and physical particle properties over the tropical Indian Ocean with six-wavelength lidar 1. Seasonal cycle
Mueller, D.; Franke, K.; Wagner, F.; Althausen, D.; Ansmann, A.; Heintzenberg, J. (2001-11-27)For the first time the seasonal cycle of optical and physical particle properties over the Indian Ocean was observed with a six-wavelength aerosol lidar. The measurements were performed in the framework of the Indian Ocean ... -
Vertical profiling of the Indian aerosol plume with six-wavelength lidar during INDOEX : A first case study
Ansmann, A.; Althausen, D.; Wandinger, U.; Franke, K.; Mueller, D.; Wagner, F.; Heintzenberg, J. (2000-04-01)During the Intensive Field Phase (IFP) of the Indian Ocean Experiment (INDOEX) lasting from 15 February to 26 March 1999, a large number of pollution outbreaks from India and southeast Asia were observed with a unique ...