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. 11

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

Comparison of PWV observed at Chiba in 2019 between the microwave radiometer (PWV_MWR) and sky-radiometer (PWV_SKYR) with (a) SN-CKD and (b) WV-CKD-2. The bottom value in the legend is the mean and standard deviation of the difference (PWV_SKYR—PWV_MWR). γ is the correlation coefficient. SN-CKD is a standard lookup table for the CKD method in the radiative transfer model RSTAR, and WV-CKD-2 is a lookup table for the CKD method in the water vapor absorption region of 940 nm at 2-\({\mathrm{cm}}^{-1}\) intervals

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