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

Related authors

PRACTISE – Photo Rectification And ClassificaTIon SoftwarE (V.2.1)
S. Härer, M. Bernhardt, and K. Schulz
Geosci. Model Dev., 9, 307–321,,, 2016
Short summary
PRACTISE – Photo Rectification And ClassificaTIon SoftwarE (V.1.0)
S. Härer, M. Bernhardt, J. G. Corripio, and K. Schulz
Geosci. Model Dev., 6, 837–848,,, 2013

Related subject area

Discipline: Snow | Subject: Remote Sensing
Evaluation of snow depth retrievals from ICESat-2 using airborne laser-scanning data
César Deschamps-Berger, Simon Gascoin, David Shean, Hannah Besso, Ambroise Guiot, and Juan Ignacio López-Moreno
The Cryosphere, 17, 2779–2792,,, 2023
Short summary
How do tradeoffs in satellite spatial and temporal resolution impact snow water equivalent reconstruction?
Edward H. Bair, Jeff Dozier, Karl Rittger, Timbo Stillinger, William Kleiber, and Robert E. Davis
The Cryosphere, 17, 2629–2643,,, 2023
Short summary
Exploring the use of multi-source high-resolution satellite data for snow water equivalent reconstruction over mountainous catchments
Valentina Premier, Carlo Marin, Giacomo Bertoldi, Riccardo Barella, Claudia Notarnicola, and Lorenzo Bruzzone
The Cryosphere, 17, 2387–2407,,, 2023
Short summary
Estimating snow accumulation and ablation with L-band interferometric synthetic aperture radar (InSAR)
Jack Tarricone, Ryan W. Webb, Hans-Peter Marshall, Anne W. Nolin, and Franz J. Meyer
The Cryosphere, 17, 1997–2019,,, 2023
Short summary
Snowmelt characterization from optical and synthetic-aperture radar observations in the La Joie Basin, British Columbia
Sara E. Darychuk, Joseph M. Shea, Brian Menounos, Anna Chesnokova, Georg Jost, and Frank Weber
The Cryosphere, 17, 1457–1473,,, 2023
Short summary

Cited articles

Abermann, J., Kuhn, M., and Fischer, A.: A reconstruction of annual mass balances of Austria's glaciers from 1969 to 1998, Ann. Glaciol., 52, 127–134,, 2011. 
Agosta, C., Fettweis, X., and Datta, R.: Evaluation of the CMIP5 models in the aim of regional modelling of the Antarctic surface mass balance, The Cryosphere, 9, 2311–2321,, 2015. 
Aronica, G., Bates, P. D., and Horritt, M. S.: Assessing the uncertainty in distributed model predictions using observed binary pattern information within GLUE, Hydrol. Process., 16, 2001–2016,, 2002. 
Bernhardt, M. and Schulz, K.: SnowSlide: A simple routine for calculating gravitational snow transport, Geophys. Res. Lett., 37, L11502,, 2010. 
Bernhardt, M., Schulz, K., Liston, G. E., and Zängl, G.: The influence of lateral snow redistribution processes on snow melt and sublimation in alpine regions, J. Hydrol., 424–425, 196–206,, 2012. 
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.