Overall Variability in the Model for Desert Dust Aerosol Parametersa

^a  r_i, σ _i , and N _i represent the modal radius, the standard deviation, and the aerosol number density, respectively, of mode i. The real refractive index is 1.50–1.55 in all cases. The ranges of imaginary refractive indices are -0.005 to -0.001, -0.01 to -0.001, and -0.02 to -0.001.

Imaginary (m_i) Refractive Indices at 350 nm of Some Minerals and Some Mixtures Made from Two Mineralsa

^a  Source: Ref. 13.

Parameters of Polynomial Fitsa and Correlation Coefficients (c²) for Spherical Desert Aerosols and for Three m_i Variability Ranges

^a  (Y = a + bX + cX ² + dX ³ + eX ⁴ + fX ⁵ + gX ⁶ + hX ⁷, with X = log β^aer and Y = log α^aer).

Parameters of the Linear Fitsa and Correlation Coefficients (c²) for Nonspherical Desert Aerosols and for Two m_i Variability Ranges

^a  Y = a + bX, with X = log β^aer and Y = log α^aer.

Table 1

Overall Variability in the Model for Desert Dust Aerosol Parametersa

^a  r_i, σ _i , and N _i represent the modal radius, the standard deviation, and the aerosol number density, respectively, of mode i. The real refractive index is 1.50–1.55 in all cases. The ranges of imaginary refractive indices are -0.005 to -0.001, -0.01 to -0.001, and -0.02 to -0.001.

Table 2

Imaginary (m_i) Refractive Indices at 350 nm of Some Minerals and Some Mixtures Made from Two Mineralsa

^a  Source: Ref. 13.

Table 3

Parameters of Polynomial Fitsa and Correlation Coefficients (c²) for Spherical Desert Aerosols and for Three m_i Variability Ranges

^a  (Y = a + bX + cX ² + dX ³ + eX ⁴ + fX ⁵ + gX ⁶ + hX ⁷, with X = log β^aer and Y = log α^aer).

Table 4

Parameters of the Linear Fitsa and Correlation Coefficients (c²) for Nonspherical Desert Aerosols and for Two m_i Variability Ranges

^a  Y = a + bX, with X = log β^aer and Y = log α^aer.