Review of “Martian column CO2 and pressure measurement with differential absorption lidar at 1.96 μm”

General comments:

This study introduced a design of lidar to retrieve Martian column CO2 and pressure profiles. Compared with previous study, the main innovation is compact lidar configuration with small telescope dimensions and low laser pulse energies using the 1.96 μm CO2 absorption band. Online and offline bands around 1.96 μm are selected to formulate a differential absorption optical depth algorithm. Finally, the authors conducted an OSSE experiment to estimate retrieval uncertainties. When the design is implemented, retrieved data should be useful for Martian reseraches. The manuscript is well written.

Specific comments:

1. In Fig. 2, temperature data is not well fitted. Is the fitted temperature curve used for calculation in Fig.3? If so, how it affects CO2 absorption optical depth in Fig. 3?

Technical correction:

Lines 305 and 321: 2 should be subscript in CO2.

Please see the attached file. Thanks.