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

Momoi, Masahiro; Irie, Hitoshi; Sekiguchi, Miho; Nakajima, Teruyuki; Takenaka, Hideaki; Miura, Kazuhiko; Aoki, Kazuma

doi:10.1186/s40645-022-00467-6

Fig. 4

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

Architecture of the WV-CKD-10. The top panel (a) shows the number of quadrature points in the sub-band. The bottom panel (b) shows the maximum residual error relative to the LBL method using CA-DB. WV-CKD-10 is a lookup table for the CKD method in the water vapor absorption region of 940 nm at 10-\({\mathrm{cm}}^{-1}\) intervals. CA-DB is dataset consisting of radiances at ground level under continental averaged aerosol condition of Hess et al. (1999)

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