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Table 6 Microphysical and optical properties and vertical profiles of aerosols used in sensitivity testing, in accordance with the approach described by Momoi et al. (2020)

From: Rapid, accurate computation of narrow-band sky radiance in the 940 nm gas absorption region using the correlated k-distribution method for sun-photometer observations

Aerosol

Components

Size distribution

Refractive index at 940 nm

Relative weight in total optical thickness at 500 nm

Vertical profile

  

Mode radius (μm)

Mode width

Real

Imaginary

  

Continental average

Water-soluble

0.18

0.81

1.43

0.0074

0.90

\(\exp \left( { - z/H} \right)\), H = 8 km

 

Soot

0.05

0.69

1.75

0.44

0.07

\(\exp \left( { - z/H} \right)\), H = 4 km

 

Insoluble

5.98

0.92

1.52

0.008

0.03

\(\exp \left( { - z/H} \right)\), H = 2 km

Transported dust

Dust

3.23

0.79

1.53

0.004

0.25

\(\frac{1}{{\sqrt {2\pi \sigma } }}\exp \left( { - \frac{{\left( {z - z_{c} } \right)}}{{2\sigma^{2} }}} \right)\), zc = 3.5 km

σ = 0.4 km

 

Water-soluble

0.18

0.81

1.43

0.0074

0.67

\(\exp \left( { - z/H} \right)\), H = 8 km

 

Soot

0.05

0.69

1.75

0.44

0.05

\(\exp \left( { - z/H} \right)\), H = 4 km

 

Insoluble

5.98

0.92

1.52

0.008

0.03

\(\exp \left( { - z/H} \right)\), H = 2 km