Please see the attached file.

This paper aims to study the transferability of calibrated parameters across temporal scales in hydrological modeling using a single model applied to a specific region in China. These limitations, the narrow focus on a specific region and model, restrict the study’s scope. Nevertheless, the vision and idea behind the work are valid and highly relevant.

The authors should better highlight the novelties of this work compared to the recent study, https://doi.org/10.5194/egusphere-2024-1438. As a consequence, all parts related to model performance across temporal scales should be downplayed, as they currently lack sufficient depth and originality.

The most significant novelty lies in the finding that model parameters are not transferable when the computational time step varies. However, the observation that higher-resolution data produces better results has already been extensively discussed, with numerous examples provided in the ongoing work https://doi.org/10.5194/egusphere-2024-1438, which is openly accessible in the HESS discussion section.

HESS primarily focuses on generalizable findings rather than region-specific studies. Despite differences in the study areas, the aims of both works, if understood correctly, appear to focus on deriving general conclusions. However, the current discussion does not sufficiently support this objective, making the paper feel more suited to journals focused on regional case studies.

Furthermore, the model is not adequately described. The lack of detailed model descriptions significantly limits the reader’s ability to understand the factors that might influence the transferability of parameters across temporal scales. For instance, mechanisms like snow dynamics or evapotranspiration processes could provide valuable insights into why certain parameters can or cannot be transferred. Similarly, a discussion of potential model limitations, perhaps in the modeling of snow dynamics or evapotranspiration, could clarify the conditions under which the model performs better or worse. Unfortunately, these aspects are overlooked, leaving the paper as a lengthy description with insufficient critical evaluation or insight.

In conclusion, this paper lacks the necessary depth and originality, and in its current form, it may not be suitable for publication in a journal like HESS.