Articles | Volume 17, issue 2
© Author(s) 2023. This work is distributed underthe Creative Commons Attribution 4.0 License.
Implementing spatially and temporally varying snow densities into the GlobSnow snow water equivalent retrieval
- Final revised paper (published on 13 Feb 2023)
- Preprint (discussion started on 29 Nov 2022)
Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor |
: Report abuse
CC1: 'Comment on tc-2022-227', Alain Royer, 12 Dec 2022
- AC3: 'Reply on CC1', Pinja Venäläinen, 31 Jan 2023
RC1: 'Comment on tc-2022-227', Nicolas Marchand, 27 Dec 2022
- AC1: 'Reply on RC1', Pinja Venäläinen, 31 Jan 2023
RC2: 'Comment on tc-2022-227', Jennifer Jacobs, 09 Jan 2023
- AC2: 'Reply on RC2', Pinja Venäläinen, 31 Jan 2023
Peer review completion
AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (31 Jan 2023) by Alexandre Langlois
AR by Pinja Venäläinen on behalf of the Authors (01 Feb 2023)  Author's response Author's tracked changes Manuscript
ED: Publish as is (01 Feb 2023) by Alexandre Langlois
This article presents a new version of Globe Snow v.3.0 (new product) including a retrieval with variable density. The principle of the approach has already been presented and discussed by P. Venäläinen in TC 2021. In this paper, the improvement is described and analyzed over a larger dataset.
Even if the retrieval of SWE including a variable density in the inversion process improves the SWE a bit (reduction of the bias by 5% on average), the lack of sensitivity of the retrieval for large amounts of snow (SWE>150 mm) remains a major problem with this approach (Fig. 8). This should be recalled in conclusion, even if it is known.
But this long database has the merit to exist and has to be kept up to date.
Some aspects to be clarified (specially Fig. 2):
Abstract: reduced RMSE and MAE by about 4 mm and 5 mm : in %tage?
L.94 For GMON too, the snow density was calculated for SWE and snow depth? But snow depth is not systematically measured at the GMON sites?
L. 170 Figure 2. Not clear : The “Dynamic snow density information’ is derived from Tb (a red arrow is missing?) and from Step 2 : the upper arrow should go the other way?
L. 380 The figures show the SWE retrievals. Wording of the caption not clear: may be confused with “snow” density scatter plots ! To reword more clearly?