Extended Data Table 1 Scaling laws for dark BrC imaginary refractive index

From: Shortwave absorption by wildfire smoke dominated by dark brown carbon

Y

Y0

S

β

khigh BC fraction

7.9 ± 2.3

λ(nm)

−0.65 ± 0.05

klow BC fraction

57 ± 27

λ(nm)

−1.08 ± 0.08

knighttime oxidation

80 ± 180

λ(nm)

−1 ± 0.4

kdaytime oxidation

20 ± 50

λ(nm)

−0.89 ± 0.32

  1. Power law fitting coefficients of the form Y = Y0 Sβ for the measured imaginary index of refraction k of d-BrC particles under different conditions during FIREX-AQ. Units of wavelength of light λ is in nano meters (10−9 meters). The interval of λ is between 350 and 1200 nm. The error bars represent one standard deviation.
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