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| Refractive index of atmospheric aerosol: Urban and mixed | Parent topic |
| Table 4. Experimental data on the complex refractive index, m = m' - m"i, of atmospheric aerosol from urban and mixed locations. A value following the ± sign in both the m' and m" columns is a single SD. Abbreviations and symbols: INOP - inversion of optical properties, ND - no data, τ - optical thickness of the atmosphere. |
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| Aerosol type/source | Wavelength, λ, µm |
m' | m" | Method | Reference |
| Greenbelt, MD, USA | 0.44 | 1.41 - 0.03τ(440 nm) ± 0.03 | 0.003 ± 0.003 | RTM (see also) |
Dubovik O et al 2002b |
| Kleiner Feldberg, Germany 1997-8 | 0.550 | 1.60 to 1.73 f | 0.034 to 0.086 f | Note v (see also) |
Ebert M et al 2004 |
| Leipzig, Germany (low hunidity) | ND | 1.509 to 1.559 | ND | RTM e1 | Wendish M and Hoyningen-Huene 1992 |
| Leipzig, Germany (high humidity) | ND | 1.364 to 1.555 | ND | RTM e2 | Wendish M and Hoyningen-Huene 1992 |
| Mainz, Germany | 0.589 | 1.50 to 1.63 | ND | IMRE a, v | Hänel G 1968 |
| Maldives | 0.44 | 1.44 ± 0.02 | 0.011 ± 0.007 | RTM (see also) |
Dubovik O et al 2002b |
| Mexico City, Mexico | 0.44 | 1.47 ± 0.03 | 0.014 ± 0.006 | RTM (see also) |
Dubovik O et al 2002b |
| Paris, France | 0.44 | 1.40 ± 0.03 | 0.009 ± 0.004 | RTM (see also) |
Dubovik O et al 2002b |
| road dust, AZ, USA (low conc.) | 0.45-0.82 | 1.339 to 1.332 d1 | 0.0087 to 0.0011 d2 | varies d1, d2 |
Egan WG 1982 |
| road dust, AZ, USA (high conc.) | 0.45-0.82 | 1.336 to 1.332 d1 | 0.0011to 0.0014 d2 | varies d1, d2 |
Egan WG 1982 |
| Sendai, Japan | 0.514 | 1.47 to 1.57 | 0.009 to 0.037 | INOP c | Tanaka M et al 1983 |
| Tucson, AZ, USA | 0.45-0.65 | 1.50 | 0.005 | INOP b | Hansen MZ 1980 |
| Vienna, Austria | 0.45-0.65 | 1.51 | 0.02 | EMT v (see also) |
Kocifaj M et al 2006b |
| — a - a variation of the IMRE method was used: aerosol particles were dispersed in two liquids with different refractive indices (RI), the RIs of the dispersions were measured, and the RI of the particles was determined by solving the volume mixing rule equation b - Chahine-Twomey inversion (for example, Twomey S 1975) of the scattering matrix c - Phillips-Twomey inversion (for example, Chow LC and Tien 1976) applied to 302 phase functions of the aerosols d1 - decreases with the increasing wavelength; Brewster angle technique applied to compressed pellets of the aerosol d2 - no spectral pattern; a Kubelka-Munk theory-based technique applied to a thin layer of the aerosol on a KBr pellet e1 - using a semi-empirical model of Pollack JB and Cuzzi 1980 of light scattering by nonspherical particles e2 - using Mie theory f - particle size-averaged within a range of 0.1 to 3 µm, the author also give the size-dependent refractive index v - volume mixing rule |
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| CITATION: Jonasz M. 2006. Refractive index of urban atmospheric aerosol: Data (www.tpdsci.com/Tpc/RIAtmAerUrbDat.php). In: Top. Part. Disp. Sci. (www.tpdsci.com). |
HISTORY: Published: 24-Nov-2006 Modified: 28-Jun-2009 Peer-reviewed: PENDING |
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