Aerosol optical properties during the Lindenberg Aerosol Characterization Experiment (LACE 98) -: art. no. 8123

被引:21
作者
Bundke, U
Hänel, G
Horvath, H
Kaller, W
Seidl, S
Wex, H
Wiedensohler, A
Wiegner, M
Freudenthaler, V
机构
[1] Univ Frankfurt, Inst Meteorol & Geophys, D-60325 Frankfurt, Germany
[2] Univ Vienna, Inst Expt Phys, A-1090 Vienna, Austria
[3] Inst Tropospher Res, D-04318 Leipzig, Germany
[4] Univ Munich, Inst Meteorol, D-80333 Munich, Germany
来源
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES | 2002年 / 107卷 / D21期
关键词
D O I
10.1029/2000JD000188
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
[1] The optical properties of atmospheric aerosol particles were measured close to ground level using different methods at Lindenberg/Falkenberg (Germany) during the Lindenberg Aerosol Characterization Experiment (LACE 98), 13 July 1998 to 14 August 1998 [Ansmann et al., 2002]. The experimental setup consisted of (a) an aerosol photometer, which measured a complete set of aerosol optical properties, such as extinction, scattering, and absorption coefficients, single scattering albedo, apparent complex refractive index, asymmetry parameter of the phase function of scattering, and apparent volume soot content, (b) an integrating plate, which measured the absorption coefficient, and (c) a nephelometer and (d) a particle soot absorption photometer (PSAP) for measurements of scattering and absorption coefficients. All these measurements were performed under dry conditions. A telephotometer and a horizontal lidar were used to determine the aerosol extinction coefficient under ambient conditions. This paper presents a closure study of the different measurement methods. An empirical correction function for the PSAP is introduced and compared with a semiempirical correction function previously introduced by Bond et al. [1999]. A detailed model of humidity effects on the extinction coefficient is presented using "coated sphere'' calculations based on measured input values of the size distribution, the chemical composition, the growth factor at 90% relative humidity, the water-soluble fraction of particulate materials, the temperature, and the relative humidity. Model calculations allowed an intercomparison of measured values of particles in the dry state and at ambient relative humidity and showed good agreement.
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页数:15
相关论文
共 44 条
[1]   Aerosol backscatter fraction and single scattering albedo: Measured values and uncertainties at a coastal station in the Pacific Northwest [J].
Anderson, TL ;
Covert, DS ;
Wheeler, JD ;
Harris, JM ;
Perry, KD ;
Trost, BE ;
Jaffe, DJ ;
Ogren, JA .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1999, 104 (D21) :26793-26807
[2]  
Anderson TL, 1996, J ATMOS OCEAN TECH, V13, P967, DOI 10.1175/1520-0426(1996)013<0967:PCOAHS>2.0.CO
[3]  
2
[4]   Determining aerosol radiative properties using the TSI 3563 integrating nephelometer [J].
Anderson, TL ;
Ogren, JA .
AEROSOL SCIENCE AND TECHNOLOGY, 1998, 29 (01) :57-69
[5]  
[Anonymous], 1996, Intergovernmental Panel on Climate Change
[6]  
ANSMANN A, 2002, IN PRESS J GEOPHYS R, V107
[7]   International Global Atmospheric Chemistry (IGAC) project's first aerosol characterization experiment (ACE 1): Overview [J].
Bates, TS ;
Huebert, BJ ;
Gras, JL ;
Griffiths, FB ;
Durkee, PA .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1998, 103 (D13) :16297-16318
[8]   Design of a DMA-based size spectrometer for a large particle size range and stable operation [J].
Birmili, W ;
Stratmann, F ;
Wiedensohler, A .
JOURNAL OF AEROSOL SCIENCE, 1999, 30 (04) :549-553
[9]  
BLANCHET JP, 1982, ATMOS OCEAN, V20, P189
[10]  
Bohren C. F., 1998, ABSORPTION SCATTERIN