The authors report on the combination of two successful efforts:  First, the calibration model was re-derived to account for nonlinear response, polarization sensitivity, and other features.  Second, the spectral radiances were validated against three other instruments.

The new model is presented with 27 equations, which is both an advantage (very complete work) and a disadvantage (difficult to follow).



When possible, it would be beneficial to provide context for these reprocessed data products and validation activities by citing requirements, performance of other satellites, or accuracy thresholds linked to scientific goals.  Also, the significance of the improved model could be highlighted by comparing accuracy & precision metrics between older and newer versions.

Finally, the authors are encouraged to make a number of minor English corrections:

Line 12: 0.2cm-1  -> separate number & unit

Line 39: the earth -> Earth

Line 45: Characterization of these spectral radiance is essential (reword)

Line 204: contamination -> combination

Line 311 & 579: grided -> gridded

Line 387: Table.3.

Line 394: orthogoanl -> orthogonal

Line 401: TANO -> TANSO

Line 403: bias exceeds 0.5 K bias (redundant)

Line 510: fig 2 legend - "vicalrous" -> "vicarious

Line 539: fig 4 caption - "londitude" -> "longitude"

See the attached review with proposals for changes, comments and questions