This paper presents a feasible method to estimate TKE dissipation rate (ε) based on a unit of WPR-LQ-7 in a sheared atmospheric boundary layer. The model is illustrated clearly with proper experimental settings. The authors point out the relevance of L_out and D, which is valuable in a real-world application. Although the condition (in a sheared environment) is a little bit strict, I think this work can be published after some minor revisions.

Specific comments:

1. In Abstract, the definition of L_outshould be clearly pointed out.
2. Line 30: half the Doppler spectral width mentioned here is not consistent with half width σ of the Doppler spectrum peak mentioned in Abstract, which may confuse readers without background.
3. Line 42-46. The sentence starting from (2) The model... is too long. I suggest the authors use short sentences.
4. In Table 1, the authors list many key parameters of the WPR-LQ-7. It would be better if they could include what parameters can be derived from WPR-LQ-7 measurement. In this section, I cannot find this critical information.
5. Line 123. The authors need to explain why a KH layer can be visible with enhanced SNR signal or to provide a reference.
6. In Figure 3, I suggest the authors mark the KH layer mentioned in Figure 2a with two dash lines or a grey zone.
7. Line 304-307. This part should be mentioned in a Discussion. I suggest the authors discuss the strengths and shortages of the new mode compared with other studies in this paragraph and change the section title to Discussion.