Articles | Volume 12, issue 5
Research article
04 May 2018
Research article |  | 04 May 2018

On the need for a time- and location-dependent estimation of the NDSI threshold value for reducing existing uncertainties in snow cover maps at different scales

Stefan Härer, Matthias Bernhardt, Matthias Siebers, and Karsten Schulz


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Stefan Härer on behalf of the Authors (04 Mar 2018)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (09 Mar 2018) by Guillaume Chambon
RR by Simon Gascoin (27 Mar 2018)
RR by Anonymous Referee #1 (28 Mar 2018)
ED: Publish subject to technical corrections (30 Mar 2018) by Guillaume Chambon
Short summary
The paper presents an approach which can be used to process satellite-based snow cover maps with a higher-than-today accuracy at the local scale. Many of the current satellite-based snow maps are using the NDSI with a threshold as a tool for deciding if there is snow on the ground or not. The presented study has shown that, firstly, using the standard threshold of 0.4 can result in significant derivations at the local scale and that, secondly, the deviations become smaller for coarser scales.